RAM 4500 Chassis Cab (2022 year). Manual in english — page 8

STARTING AND OPERATING

123

(Continued)

The electronically controlled transmission adapts

its shift schedule based on driver inputs, along

with environmental and road conditions. The

transmission electronics are self-calibrating;

therefore, the first few shifts on a new vehicle may

be somewhat abrupt. This is a normal condition,

and precision shifts will develop within a few

hundred miles (kilometers).
Only shift from DRIVE to PARK or REVERSE when

the accelerator pedal is released and the vehicle is

stopped. Be sure to keep your foot on the brake

pedal when shifting between these gears.
The transmission gear selector has only PARK,

REVERSE, NEUTRAL, and DRIVE positions. Manual

downshifts can be made using the Electronic

Range Select (ERS) shift control. Pushing the GEAR

“-”/GEAR “+” switches (on the steering wheel)

while in the DRIVE position will select the highest

available transmission gear, and will display that

gear limit in the instrument cluster as 1, 2, 3, etc

Ú

page 125. Some models will display both the

selected gear limit, and the actual current gear,

while in ERS mode.

Electronic Transmission Gear Selector

Gear Ranges

Do not press the accelerator pedal when shifting

from PARK or NEUTRAL into another gear range.

NOTE:

After selecting any gear range, wait a moment to

allow the selected gear to engage before acceler

-

ating. This is especially important when the engine

is cold.
PARK (P)
This range supplements the parking brake by

locking the transmission. The engine can be

started in this range. Never attempt to use PARK

while the vehicle is in motion. Apply the parking

brake when exiting the vehicle in this range.

When parking on a hill, apply the parking brake

before shifting the transmission to PARK. As an

added precaution, turn the front wheels toward the

curb on a downhill grade and away from the curb

on an uphill grade.

NOTE:

On four-wheel drive vehicles be sure that the

transfer case is in a drive position.
When exiting the vehicle, always:



Apply the parking brake.



Shift the transmission into PARK.



Turn the engine off.



Remove the key fob.

WARNING!



Never use the PARK position as a substitute

for the parking brake. Always apply the

parking brake fully when exiting the vehicle to

guard against vehicle movement and possible

injury or damage.



Your vehicle could move and injure you and

others if it is not in PARK. Check by trying to

move the transmission gear selector out of

PARK with the brake pedal released. Make

sure the transmission is in PARK before

exiting the vehicle.

4

124

STARTING AND OPERATING

(Continued)

The following indicators should be used to ensure

that you have properly engaged the transmission

into the PARK position:



Look at the transmission gear position display

and verify that it indicates the PARK position (P),

and is not blinking.



With the brake pedal released, verify that the

gear selector will not move out of PARK.

REVERSE (R)
This range is for moving the vehicle backward.

Shift into REVERSE only after the vehicle has come

to a complete stop.
NEUTRAL (N)
Use this range when the vehicle is standing for

prolonged periods with the engine running. Apply

the parking brake and shift the transmission into

PARK if you must exit the vehicle.



The transmission may not engage PARK if the

vehicle is moving. Always bring the vehicle to a

complete stop before shifting to PARK, and

verify that the transmission gear position indi

-

cator solidly indicates PARK (P) without

blinking. Ensure that the vehicle is completely

stopped, and the PARK position is properly

indicated, before exiting the vehicle.



It is dangerous to shift out of PARK or

NEUTRAL if the engine speed is higher than

idle speed. If your foot is not firmly pressing

the brake pedal, the vehicle could accelerate

quickly forward or in reverse. You could lose

control of the vehicle and hit someone or

something. Only shift into gear when the

engine is idling normally and your foot is firmly

pressing the brake pedal.



Unintended movement of a vehicle could

injure those in or near the vehicle. As with all

vehicles, you should never exit a vehicle while

the engine is running. Before exiting a vehicle,

always come to a complete stop, then apply

the parking brake, shift the transmission into

PARK, and turn the ignition OFF. When the

ignition is in the OFF position, the transmis

-

sion is locked in PARK, securing the vehicle

against unwanted movement.

WARNING!



When exiting the vehicle, always make sure

the ignition is in the OFF position, remove the

key fob from the vehicle, and lock the vehicle.



Never leave children alone in a vehicle, or with

access to an unlocked vehicle. Allowing chil

-

dren to be in a vehicle unattended is

dangerous for a number of reasons. A child or

others could be seriously or fatally injured.

Children should be warned not to touch the

parking brake, brake pedal or the transmis

-

sion gear selector.



Do not leave the key fob in or near the vehicle

(or in a location accessible to children), and do

not leave the ignition in the ACC or ON/RUN

position. A child could operate power

windows, other controls, or move the vehicle.

CAUTION!



DO NOT race the engine when shifting from

PARK or NEUTRAL into another gear range, as

this can damage the drivetrain.



Before moving the transmission gear selector

out of PARK, you must start the engine, and

also press the brake pedal. Otherwise,

damage to the gear selector could result.

WARNING!

WARNING!

Do not coast in NEUTRAL and never turn off the

ignition to coast down a hill. These are unsafe

practices that limit your response to changing

traffic or road conditions. You might lose control

of the vehicle and have a collision.

STARTING AND OPERATING

125

DRIVE (D)
This range should be used for most city and

highway driving. It provides the smoothest upshifts

and downshifts, and the best fuel economy. The

transmission automatically upshifts through all

forward gears.
When frequent transmission shifting occurs (such

as when operating the vehicle under heavy loading

conditions, in hilly terrain, traveling into strong

head winds, or while towing a heavy trailer), select

TOW/HAUL mode or use the Electronic Range

Select (ERS) shift control to select a lower gear

range

Ú

page 125. Under these conditions, using

a lower gear range will improve performance and

extend transmission life by reducing excessive

shifting and heat build-up.
During extremely cold temperatures (-22°F

[-30°C] or below), transmission operation may be

modified depending on engine and transmission

temperature as well as vehicle speed. Normal

operation will resume once the transmission

temperature has risen to a suitable level.

Transmission Limp Home Mode

Transmission function is monitored electronically

for abnormal conditions. If a condition is detected

that could result in transmission damage,

Transmission Limp Home Mode is activated. In this

mode, the transmission may operate only in

certain gears, or may not shift at all. Vehicle

performance may be severely degraded and the

engine may stall. In some situations, the

transmission may not re-engage if the engine is

turned off and restarted. The Malfunction Indicator

Light (MIL) may be illuminated. A message in the

instrument cluster will inform the driver of the

more serious conditions, and indicate what actions

may be necessary.
In the event of a momentary problem, the

transmission can be reset to regain all forward

gears by performing the following steps:

NOTE:

In cases where the instrument cluster message

indicates the transmission may not re-engage after

engine shutdown, perform this procedure only in a

desired location (preferably, at an authorized

dealer).

1. Stop the vehicle.
2. Shift the transmission into PARK, if possible. If

not, shift the transmission to NEUTRAL.

3. Push and hold the ignition switch until the

engine turns off.

4. Wait approximately 30 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the

problem is no longer detected, the

transmission will return to normal operation.

NOTE:

Even if the transmission can be reset, we

recommend that you visit an authorized dealer at

your earliest possible convenience. An authorized

dealer has diagnostic equipment to assess the

condition of your transmission.
If the transmission cannot be reset, authorized

dealer service is required.

Electronic Range Select (ERS) Operation

The ERS shift control allows the driver to limit the

highest available gear when the transmission is in

DRIVE. For example, if you set the transmission

gear limit to FOURTH gear, the transmission will

not shift above FOURTH gear (except to prevent

engine overspeed), but will shift through the lower

gears normally.

CAUTION!

Towing the vehicle, coasting, or driving for any

other reason with the transmission in NEUTRAL

can cause severe transmission damage.
For Towing A Disabled Vehicle

Ú

page 325.

For Recreational Towing

Ú

page 185.

4

126

STARTING AND OPERATING

You can switch between DRIVE and ERS mode at

any vehicle speed. When the transmission gear

selector is in DRIVE, the transmission will operate

automatically, shifting between all available gears.

Tapping the GEAR “–” switch (on the steering

wheel) will activate ERS mode, display the current

gear in the instrument cluster, and set that gear as

the top available gear. Once in ERS mode, tapping

the GEAR “–” or GEAR “+” switch will change the

top available gear.

ERS Control

To exit ERS mode, simply push and hold the

GEAR “+” switch until the gear limit display

disappears from the instrument cluster.

When to Use TOW/HAUL Mode

When driving in hilly areas, towing a trailer, carrying

a heavy load, etc., and frequent transmission

shifting occurs, push the TOW/HAUL switch to

activate TOW/HAUL mode. This will improve

performance and reduce the potential for

transmission overheating or failure due to

excessive shifting.

TOW/HAUL Switch

The “TOW/HAUL Indicator Light” will illuminate in

the instrument cluster to indicate that TOW/HAUL

mode has been activated. Pushing the switch a

second time restores normal operation. Normal

operation is always the default at engine start-up.

If TOW/HAUL mode is desired, the switch must be

pushed each time the engine is started.

6-S

PEED

A

UTOMATIC

T

RANSMISSION

—

I

F

E

QUIPPED

Chassis Cab models may use either the AS66RC or

AS69RC transmission (which are equipped with a

Power Take-Off (PTO) access cover on the side of

the transmission case).
The transmission gear position display (located in

the instrument cluster) indicates the transmission

gear range. The gear selector is mounted on the

right side of the steering column. You must press

1 — GEAR “+” Switch
2 — GEAR “–” Switch

WARNING!

Do not downshift for additional engine braking

on a slippery surface. The drive wheels could

lose their grip and the vehicle could skid,

causing a collision or personal injury.

WARNING!

Do not use the TOW/HAUL feature when driving

in icy or slippery conditions. The increased

engine braking can cause the rear wheels to

slide, and the vehicle to swing around with the

possible loss of vehicle control, which may

cause an accident possibly resulting in personal

injury or death.

STARTING AND OPERATING

127

(Continued)

the brake pedal to move the gear selector out of

PARK

Ú

page 122. Pull the gear selector toward

you when shifting into REVERSE or PARK, or when

shifting out of PARK.
The electronically-controlled transmission provides

a precise shift schedule. The transmission

electronics are self-calibrating; therefore, the first

few shifts on a new vehicle may be somewhat

abrupt. This is a normal condition, and precision

shifts will develop within a few hundred miles

(kilometers).
Only shift from DRIVE to PARK or REVERSE when

the accelerator pedal is released and the vehicle is

stopped. Be sure to keep your foot on the brake

pedal when shifting between these gears.
The transmission gear selector has only PARK,

REVERSE, NEUTRAL, and DRIVE shift positions.

Manual downshifts can be made using the

Electronic Range Select (ERS) shift control.

Pushing the ERS (“-”/”+”) switches (on the steering

wheel) while in the DRIVE position will select the

highest available transmission gear, and will

display that gear limit in the instrument cluster as

1, 2, 3, etc.

Ú

page 130. Some models will display

both the selected gear limit, and the actual current

gear, while in ERS mode.

Gear Ranges

Do not press the accelerator pedal when shifting

from PARK or NEUTRAL into another gear range.

NOTE:

After selecting any gear range, wait a moment to

allow the selected gear to engage before acceler

-

ating. This is especially important when the engine

is cold.
PARK (P)
This range supplements the parking brake by

locking the transmission. The engine can be

started in this range. Never attempt to use PARK

while the vehicle is in motion. Apply the parking

brake when exiting the vehicle in this range.
When parking on a hill, apply the parking brake

before shifting the transmission to PARK,

otherwise the load on the transmission locking

mechanism may make it difficult to move the gear

selector out of PARK. As an added precaution, turn

the front wheels toward the curb on a downhill

grade and away from the curb on an uphill grade.

NOTE:

On four-wheel drive vehicles be sure that the

transfer case is in a drive position.

When exiting the vehicle, always:



Apply the parking brake.



Shift the transmission into PARK.



Turn the engine off.



Remove the key fob.

WARNING!



Never use the PARK position as a substitute

for the parking brake. Always apply the

parking brake fully when exiting the vehicle to

guard against vehicle movement and possible

injury or damage.



Your vehicle could move and injure you and

others if it is not in PARK. Check by trying to

move the gear selector out of PARK with the

brake pedal released. Make sure the trans

-

mission is in PARK before exiting the vehicle.



It is dangerous to shift out of PARK or

NEUTRAL if the engine speed is higher than

idle speed. If your foot is not firmly pressing

the brake pedal, the vehicle could accelerate

quickly forward or in reverse. You could lose

control of the vehicle and hit someone or

something. Only shift into gear when the

engine is idling normally and your foot is firmly

pressing the brake pedal.

4

128

STARTING AND OPERATING

The following indicators should be used to ensure

that you have properly engaged the transmission

into the PARK position:



When shifting into PARK, pull the gear selector

toward you and move it all the way counterclock

-

wise until it stops.



Release the gear selector and make sure it is

fully seated in the PARK gate.



Look at the transmission gear position display

and verify that it indicates the PARK position (P).



With the brake pedal released, verify that the

gear selector will not move out of PARK.

REVERSE (R)
This range is for moving the vehicle backward.

Shift into REVERSE only after the vehicle has come

to a complete stop.

NEUTRAL (N)
Use this range when the vehicle is standing for

prolonged periods with the engine running. The

engine may be started in this range. Apply the

parking brake and shift the transmission into PARK

if you must exit the vehicle.

DRIVE (D)
This range should be used for most city and

highway driving. It provides the smoothest upshifts

and downshifts, and the best fuel economy. The

transmission automatically upshifts through all

forward gears.



Unintended movement of a vehicle could injure

those in or near the vehicle. As with all vehicles,

you should never exit a vehicle while the engine

is running. Before exiting a vehicle, always

come to a complete stop, then apply the

parking brake, shift the transmission into

PARK, turn the engine OFF, and remove the key

fob. When the ignition is in the LOCK/OFF (key

removal) position (or, with Keyless Enter ‘n

Go™, when the ignition is in the OFF position),

the transmission is locked in PARK, securing

the vehicle against unwanted movement.



When leaving the vehicle, always make sure

the ignition is in the OFF position, remove the

key fob from the vehicle, and lock the vehicle.



Never leave children alone in a vehicle, or with

access to an unlocked vehicle. Allowing chil

-

dren to be in a vehicle unattended is dangerous

for a number of reasons. A child or others could

be seriously or fatally injured. Children should

be warned not to touch the parking brake,

brake pedal or the transmission gear selector.



Do not leave the key fob in or near the vehicle

(or in a location accessible to children), and do

not leave the ignition (in a vehicle equipped

with Keyless Enter ‘n Go™) in the ACC or ON/

RUN position. A child could operate power

windows, other controls, or move the vehicle.

WARNING!

CAUTION!



Before moving the transmission gear selector

out of PARK, you must turn the ignition to the

ON/RUN position, and also press the brake

pedal. Otherwise, damage to the gear selector

could result.



DO NOT race the engine when shifting from

PARK or NEUTRAL into another gear range, as

this can damage the drivetrain.

WARNING!

Do not coast in NEUTRAL and never turn off the

ignition to coast down a hill. These are unsafe

practices that limit your response to changing

traffic or road conditions. You might lose control

of the vehicle and have a collision.

CAUTION!

Towing the vehicle, coasting, or driving for any

other reason with the transmission in NEUTRAL

can cause severe transmission damage.
For Towing A Disabled Vehicle

Ú

page 325.

For Recreational Towing

Ú

page 185.

STARTING AND OPERATING

129

When frequent transmission shifting occurs (such

as when operating the vehicle under heavy loading

conditions, in hilly terrain, traveling into strong

head winds, or while towing a heavy trailer), select

TOW/HAUL mode or use the Electronic Range

Select (ERS) shift control to select a lower gear

range

Ú

page 130. Under these conditions, using

a lower gear range will improve performance and

extend transmission life by reducing excessive

shifting and heat buildup.
If the transmission temperature exceeds normal

operating limits, the powertrain controller will

modify the transmission shift schedule and expand

the range of torque converter clutch engagement.

This is done to prevent transmission damage due

to overheating.
If the transmission becomes extremely hot or is in

danger of overheating, the Transmission

Temperature Warning Light may illuminate and the

transmission may operate differently until the

transmission cools down.

NOTE:

Use caution when operating a heavily loaded

vehicle at low speeds (such as towing a trailer up a

steep grade, or in stop-and-go traffic) during hot

weather. In these conditions, torque converter slip

can impose a significant additional heat load on

the cooling system. Downshifting the transmission

to the lowest possible gear (when climbing a

grade), or shifting to NEUTRAL (when stopped in

heavy traffic) can help to reduce this excess heat

generation.
During cold temperatures, transmission operation

may be modified depending on engine and

transmission temperature as well as vehicle

speed. This feature improves warm-up time of the

engine and transmission to achieve maximum

efficiency. Engagement of the torque converter

clutch is inhibited until the transmission fluid is

warm

Ú

page 131.

On trucks with AS66RC or AS69RC transmission,

FIFTH and SIXTH gears may be inhibited briefly on

cold starts below 41°F (5°C), and during very cold

temperatures (-4°F [-20°C] or below), operation

may briefly be limited to third gear only. During this

condition, the ability of the vehicle to accelerate

under heavily loaded conditions may be reduced.

In all cases, normal operation will resume once the

transmission temperature has risen to a suitable

level.

Transmission Limp Home Mode

Transmission function is monitored electronically

for abnormal conditions. If a condition is detected

that could result in transmission damage,

Transmission Limp Home Mode is activated. In this

mode, the transmission remains in THIRD gear

regardless of which forward gear is selected. If an

AS66RC/AS69RC equipped truck enters

Transmission Limp Home Mode at highway

speeds, it will initially engage FIFTH gear, until the

vehicle slows to a speed where THIRD gear can be

engaged. PARK, REVERSE, and NEUTRAL will

continue to operate. The Malfunction Indicator

Light (MIL) may be illuminated. Transmission Limp

Home Mode allows the vehicle to be driven to an

authorized dealer for service without damaging the

transmission.
In the event of a momentary problem, the

transmission can be reset to regain all forward

gears by performing the following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
3. Turn the ignition to the OFF position.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the

problem is no longer detected, the

transmission will return to normal operation.

NOTE:

Even if the transmission can be reset, we

recommend that you visit an authorized dealer at

your earliest possible convenience. An authorized

dealer has diagnostic equipment to assess the

condition of your transmission.
If the transmission cannot be reset, authorized

dealer service is required.

4

130

STARTING AND OPERATING

Electronic Range Select (ERS) Operation

The ERS shift control allows the driver to limit the

highest available gear when the transmission is in

DRIVE. For example, if you set the transmission

gear limit to FOURTH gear, the transmission will

not shift above FOURTH gear, but will shift through

the lower gears normally.
You can switch between DRIVE and ERS mode at

any vehicle speed. When the gear selector is in the

DRIVE position, the transmission will operate

automatically, shifting between all available gears.

Tapping the ERS “-” switch will activate ERS mode,

display the current gear in the instrument cluster,

and set that gear as the top available gear. Once in

ERS mode, tapping “-” or “+” will change the top

available gear.

Electronic Range Select

To exit ERS mode, simply push and hold the

ERS “+” switch until the gear limit display

disappears from the instrument cluster.

NOTE:

To select the proper gear position for maximum

deceleration (engine braking), simply push and

hold the ERS “-” switch. The transmission will shift

to the range from which the vehicle can best be

slowed down.

Overdrive Operation

The automatic transmission includes an

electronically controlled Overdrive (FIFTH and

SIXTH gears). The transmission will automatically

shift into Overdrive if the following conditions are

present:



The gear selector is in the DRIVE position.



The transmission fluid has reached an

adequate temperature.



The engine coolant has reached an adequate

temperature.



Vehicle speed is sufficiently high.



The TOW/HAUL switch has not been activated.



The driver is not heavily pressing the acceler

-

ator.

1 — GEAR “+” Switch
2 — GEAR “–” Switch

WARNING!

Do not downshift for additional engine braking

on a slippery surface. The drive wheels could

lose their grip and the vehicle could skid,

causing a collision or personal injury.

CAUTION!

When using ERS for engine braking while

descending steep grades, be careful not to

overspeed the engine. Apply the brakes as

needed to prevent engine overspeed.

STARTING AND OPERATING

131

When To Use TOW/HAUL Mode

When driving in hilly areas, towing a trailer, carrying

a heavy load, etc., and frequent transmission

shifting occurs, push the TOW/HAUL switch to

activate TOW/HAUL mode. This will improve

performance and reduce the potential for

transmission overheating or failure due to

excessive shifting. When operating in TOW/HAUL

mode, transmission upshifts are delayed, and the

transmission will automatically downshift (for

engine braking) when the throttle is closed and/or

during steady braking maneuvers.

TOW/HAUL Switch

The TOW/HAUL Indicator Light will illuminate in the

instrument cluster to indicate that TOW/HAUL

mode has been activated. Pushing the switch a

second time restores normal operation. Normal

operation is always the default at engine start-up.

If TOW/HAUL mode is desired, the switch must be

pushed each time the engine is started.

Torque Converter Clutch

A feature designed to improve fuel economy has

been included in the automatic transmission on

your vehicle. A clutch within the torque converter

engages automatically at calibrated speeds. This

may result in a slightly different feeling or response

during normal operation in the upper gears. When

the vehicle speed drops or during some

accelerations, the clutch automatically

disengages.

NOTE:



The torque converter clutch will not engage,

until the transmission fluid and engine coolant

are warm (usually after 1 to 3 miles (2 to 5 km)

of driving). Because engine speed is higher

when the torque converter clutch is not

engaged, it may seem as if the transmission is

not shifting properly when cold; this is normal.

Using the Electronic Range Select (ERS) shift

control, when the transmission is sufficiently

warm, will demonstrate that the transmission is

able to shift into and out of Overdrive.



If the vehicle has not been driven for several

days, the first few seconds of operation after

shifting the transmission into gear may seem

sluggish. This is due to the fluid partially

draining from the torque converter into the

transmission. This condition is normal and will

not cause damage to the transmission. The

torque converter will refill within five seconds

after starting the engine.

AUXILIARY SWITCHES — IF EQUIPPED

There can be up to six auxiliary switches located in

the lower switch bank of the instrument panel

which can be used to power various electronic

devices and Power Take Off (PTO). If equipped, it

will take the place of the sixth auxiliary switch.

Connections to the switches are found under the

hood in the connectors attached to the auxiliary

Power Distribution Center.
You have the ability to configure the functionality of

the auxiliary switches via the instrument cluster

display. All switches can now be configured for

setting the switch type operation to latching or

WARNING!

Do not use the TOW/HAUL feature when driving

in icy or slippery conditions. The increased

engine braking can cause the rear wheels to

slide, and the vehicle to swing around with the

possible loss of vehicle control, which may

cause an accident possibly resulting in personal

injury or death.

4

132

STARTING AND OPERATING

momentary, power source of either battery or

ignition, and ability to hold last state across key

cycles.

NOTE:

Holding last state conditions are met when switch

type is set to latching and power source is set to

ignition.
For further information on using the auxiliary

switches, please refer to the Ram Body Builder’s

Guide by accessing https://www.ramtrucks.com/

ram-commercial/body-builders-guide.html and

choosing the appropriate links.

FOUR-WHEEL DRIVE OPERATION —

IF EQUIPPED

Four-wheel drive trucks are equipped with either a

manually shifted transfer case or an electronically

shifted transfer case.

E

LECTRONICALLY

S

HIFTED

T

RANSFER

C

ASE

(8-S

PEED

T

RANSMISSION

) —

I

F

E

QUIPPED

This is an electronically shifted transfer case and is

operated by the 4WD Control Switch (Transfer

Case Switch), which is located on the instrument

panel.

Four-Position Transfer Case

This electronically shifted transfer case provides

four positions:



Two-Wheel Drive High Range (2WD)



Four-Wheel Drive High Range (4WD HIGH)



Four-Wheel Drive Low Range (4WD LOW)



N (Neutral)

For additional information on the appropriate use

of each transfer case position, see the information

below:
2WD
Two-Wheel Drive High Range — This range is for

normal street and highway driving on dry, hard

surfaced roads.

4WD HIGH
Four-Wheel Drive High Range — This range

provides torque to the front driveshaft (engages

four-wheel drive) which allows front and rear

wheels to spin at the same speed. This provides

additional traction for loose, slippery road surfaces

only.
4WD LOW
Four-Wheel Drive Low Range — This range provides

low speed four-wheel drive. It maximizes torque

(increased torque over 4WD High) to the front

wheels, allowing front and rear wheels to rotate at

the same speed. This range provides additional

traction and maximum pulling power for loose,

slippery road surfaces only. Do not exceed 25 mph

(40 km/h) in this range.
N (Neutral)
N (Neutral) — This range disengages both the front

and rear driveshafts from the powertrain. To be

used for flat towing behind another vehicle

Ú

page 185.

STARTING AND OPERATING

133

This electronically shifted transfer case is designed

to be driven in the two-wheel drive position (2WD)

for normal street and highway conditions on dry

hard surfaced roads. Driving the vehicle in

two-wheel drive will have greater fuel economy

benefits as the front axle is not engaged in

two-wheel drive.

When additional traction is required, the transfer

case 4WD HIGH and 4WD LOW positions can be

used to maximize torque to the front driveshaft,

forcing the front and rear wheels to rotate at the

same speed. This is accomplished by pushing the

desired position on the four-wheel drive control

switch.
For specific shifting instructions

Ú

page 137.

The 4WD HIGH and 4WD LOW positions are

designed for loose, slippery road surfaces only.

Driving in the 4WD HIGH and 4WD LOW positions

on dry, hard surfaced roads may cause increased

tire wear and damage to the driveline components.

NOTE:

The transfer case N (Neutral) button is located in

the center of the four-wheel drive Control Switch

and is pushed by using a ballpoint pen or similar

object. The transfer case N (Neutral) position is to

be used for recreational towing only

Ú

page 185.

Transfer Case Position Indicator Lights
The Transfer Case Position Indicator Lights (4WD

and 4WD LOW) are located in the instrument

cluster and indicate the current and desired

transfer case selection. When you select a

different transfer case position, the indicator lights

will do the following:

If All Of The Following Shift Conditions Are Met:
1. The current position indicator light will turn

off.

2. The selected position indicator light will flash

until the transfer case completes the shift.

3. When the shift is complete, the indicator light

for the selected position will stop flashing and

remain on.

If One Or More Of The Following Shift Conditions

Are Not Met:
1. The indicator light for the current position will

remain on.

2. The newly selected position indicator light will

continue to flash.

3. The transfer case will not shift.

NOTE:

Before retrying a selection, make certain that all

the necessary requirements for selecting a new

transfer case position have been met. To retry the

selection, push the current position, wait five

seconds, and retry selection

Ú

page 137.

The SERV 4WD Warning Light monitors the

electronically shifted four-wheel drive system. If

this light remains on after engine start-up or

illuminates during driving, it means that the

four-wheel drive system is not functioning properly

and that service is required.

WARNING!



You or others could be injured or killed if you

leave the vehicle unattended with the transfer

case in the N (Neutral) position without first

fully engaging the parking brake. The transfer

case N (Neutral) position disengages both the

front and rear drive shaft from the powertrain,

and will allow the vehicle to roll, even if the

transmission is in PARK. The parking brake

should always be applied when the driver is

not in the vehicle.



The transmission may not engage PARK if the

vehicle is moving. Always bring the vehicle to a

complete stop before shifting to PARK, and

verify that the transmission gear position indi

-

cator solidly indicates PARK (P) without

blinking. Ensure that the vehicle is completely

stopped, and the PARK position is properly

indicated, before exiting the vehicle.

4

134

STARTING AND OPERATING

NOTE:

Do not attempt to make a shift while only the front

or rear wheels are spinning. This could cause

damage to driveline components.
When operating your vehicle in 4WD LOW, the

engine speed is approximately three times that of

the two-wheel drive or 4WD HIGH positions at a

given road speed. Take care not to overspeed the

engine and do not exceed 25 mph (40 km/h).
Proper operation of four-wheel drive vehicles

depends on tires of equal size, type and

circumference on each wheel. Any difference in

tire size can cause damage to the drivetrain.
Because four-wheel drive provides improved

traction, there is a tendency to exceed safe turning

and stopping speeds. Do not go faster than road

conditions permit.

Shifting Procedure

NOTE:



If any of the requirements to select a new

transfer case position have not been met, the

transfer case will not shift. The position indi

-

cator light for the previous position will remain

on and the newly selected position indicator

light will continue to flash until all the require

-

ments for the selected position have been met.



If all the requirements to select a new transfer

case position have been met, the current posi

-

tion indicator light will turn off, the selected posi

-

tion indicator light will flash until the transfer

case completes the shift. When the shift is

complete, the position indicator light for the

selected position will stop flashing and remain

on.

2WD TO 4WD HIGH

Push the desired position on the four-wheel drive

control switch to shift the transfer case. Shifts

between two-wheel drive and 4WD HIGH can be

done with the vehicle stopped or in motion. With

the vehicle in motion, the transfer case will

engage/disengage faster if you momentarily

release the accelerator pedal after turning the

control switch. If the vehicle is stopped, the ignition

switch must be in the ON/RUN position with the

engine either running or off. This shift cannot be

completed if the ignition switch is in the ACC

position.

NOTE:

The four-wheel drive system will not allow shifts

between 2WD/4WD HIGH if the front and/or rear

wheels are spinning (no traction). In this situation,

the selected position indicator light will flash and

the original position indicator light will remain on.

At this time, reduce speed and stop spinning the

wheels to complete the shift.

2WD OR 4WD HIGH TO 4WD LOW

NOTE:

When shifting into or out of 4WD LOW some gear

noise may be heard. This noise is normal and is not

detrimental to the vehicle or occupants.
Shifting can be performed with the vehicle rolling

2 to 3 mph (3 to 5 km/h) or completely stopped.

You can use either of the following procedures:
Preferred Procedure
1. With the engine running, slow the vehicle to

2 to 3 mph (3 to 5 km/h).

2. Shift the transmission into NEUTRAL.
3. While still rolling, push the desired position on

the transfer case control switch.

4. After the desired position indicator light is on

(not flashing), shift the transmission back into

gear.

Alternate Procedure
1. Bring the vehicle to a complete stop.
2. With the ignition switch in the ON/RUN

position and the engine running, shift the

transmission into NEUTRAL.

WARNING!

Always engage the parking brake when powering

down the vehicle if the SERV 4WD Warning Light

is illuminated. Not engaging the parking brake

may allow the vehicle to roll which may cause

personal injury or death.

STARTING AND OPERATING

135

3. Push the desired position on the transfer case

control switch.

4. After the desired position indicator light is on

(not flashing), shift the transmission back into

gear.

NOTE:



If Steps 1 or 2 of either the Preferred or Alter

-

nate Procedure are not satisfied prior to

attempting the shift, then the desired position

indicator light will flash continuously while the

original position indicator light is on, until all

requirements have been met.



The ignition switch must be in the ON/RUN posi

-

tion for a shift to take place and for the position

indicator lights to be operable. If the ignition

switch is not in the ON/RUN position, the shift

will not take place and no position indicator

lights will be on or flashing.

E

LECTRONICALLY

S

HIFTED

T

RANSFER

C

ASE

(6-S

PEED

T

RANSMISSION

) —

I

F

E

QUIPPED

The electronically shifted transfer case is operated

by the four-wheel drive Control Switch (Transfer

Case Switch), which is located on the instrument

panel.

Four-Position/Part-Time Transfer Case

This electronically shifted transfer case provides

four positions:



Two-Wheel Drive High Range (2WD)



Four-Wheel Drive High Range (4WD HIGH)



Four-Wheel Drive Low Range (4WD LOW)



N (Neutral)

For additional information on the appropriate use

of each transfer case position, see the information

below:
2WD
Two-Wheel Drive High Range — This range is for

normal street and highway driving on dry, hard

surfaced roads.
4WD HIGH
Four-Wheel Drive High Range — This range

maximizes torque to the front driveshaft, forcing

the front and rear wheels to rotate at the same

speed. This range provides additional traction for

loose, slippery road surfaces only.
4WD LOW
Four-Wheel Drive Low Range — This range provides

low speed four-wheel drive. It maximizes torque to

the front wheels, forcing the front and rear wheels

to rotate at the same speed. This range provides

additional traction and maximum pulling power for

loose, slippery road surfaces only. Do not exceed

25 mph (40 km/h).
N (Neutral)
N (Neutral) — This range disengages both the front

and rear driveshafts from the powertrain. To be

used for flat towing behind another vehicle

Ú

page 185.

WARNING!

You or others could be injured or killed if you

leave the vehicle unattended with the transfer

case in the N (Neutral) position without first fully

engaging the parking brake. The transfer case

N (Neutral) position disengages both the front

and rear drive shafts from the powertrain and

will allow the vehicle to roll, even if the

transmission is in PARK. The parking brake

should always be applied when the driver is not

in the vehicle.

4

136

STARTING AND OPERATING

This electronically shifted transfer case is designed

to be driven in the two-wheel drive position (2WD)

for normal street and highway conditions on dry,

hard surfaced roads.
When additional traction is required, the transfer

case 4WD HIGH and 4WD LOW positions can be

used to maximize torque to the front driveshaft,

forcing the front and rear wheels to rotate at the

same speed. This is accomplished by rotating the

four-wheel drive Control Switch to the desired

position.
For specific shifting instructions

Ú

page 137.

The 4WD HIGH and 4WD LOW positions are

designed for loose, slippery road surfaces only.

Driving in the 4WD HIGH and 4WD LOW positions

on dry hard surfaced roads may cause increased

tire wear and damage to the driveline components.

NOTE:

The transfer case N (Neutral) button is located on

the lower left hand corner of the four-wheel drive

Control Switch. The transfer case N (Neutral)

position is to be used for recreational towing only

Ú

page 185.

Transfer Case Position Indicator Lights
The Transfer Case Position Indicator Lights (4WD

and 4WD LOW) are located in the instrument

cluster and indicate the current and desired

transfer case selection. When you select a

different transfer case position, the indicator lights

will do the following:
If All Of The Following Shift Conditions Are Met:
1. The current position indicator light will turn

off.

2. The selected position indicator light will flash

until the transfer case completes the shift.

3. When the shift is complete, the indicator light

for the selected position will stop flashing and

remain on.

If One Or More Of The Following Shift Conditions

Are Not Met:
1. The indicator light for the current position will

remain on.

2. The newly selected position indicator light will

continue to flash.

3. The transfer case will not shift.

NOTE:

Before retrying a selection, make certain that all

the necessary requirements for selecting a new

transfer case position have been met. To retry the

selection, turn the control switch back to the

current position, wait five seconds, and retry

selection

Ú

page 137.

The SERV 4WD Warning Light monitors the

electronically shifted four-wheel drive system. If

this light remains on after engine start-up or

illuminates during driving, it means that the

four-wheel drive system is not functioning properly

and that service is required.

NOTE:

Do not attempt to make a shift while only the front

or rear wheels are spinning, as this can cause

damage to driveline components.
When operating your vehicle in 4WD LOW, the

engine speed is approximately three times that of

the two-wheel drive or 4WD HIGH positions at a

given road speed. Take care not to overspeed the

engine and do not exceed 25 mph (40 km/h).
Proper operation of four-wheel drive vehicles

depends on tires of equal size, type and

circumference on each wheel. Any difference in

tire size can cause damage to the drivetrain.
Because four-wheel drive provides improved

traction, there is a tendency to exceed safe turning

and stopping speeds. Do not go faster than road

conditions permit.

WARNING!

Always engage the parking brake when powering

down the vehicle if the SERV 4WD Warning Light

is illuminated. Not engaging the parking brake

may allow the vehicle to roll, which may cause

personal injury.

STARTING AND OPERATING

137

Shifting Procedure

NOTE:



If any of the requirements to select a new

transfer case position have not been met, the

transfer case will not shift. The position indi

-

cator light for the previous position will remain

ON and the newly selected position indicator

light will continue to flash until all the require

-

ments for the selected position have been met.

To retry a shift: return the control switch back to

the original position, make certain all shift

requirements have been met, wait five seconds

and try the shift again.



If all the requirements to select a new transfer

case position have been met, the current posi

-

tion indicator light will turn OFF, the selected

position indicator light will flash until the

transfer case completes the shift. When the

shift is complete, the position indicator light for

the selected position will stop flashing and

remain ON.

2WD TO 4WD HIGH

Push the desired position on the four-wheel drive

control switch to shift the transfer case. Shifts

between two-wheel drive and 4WD HIGH can be

done with the vehicle stopped or in motion. With

the vehicle in motion, the transfer case will

engage/disengage faster if you momentarily

release the accelerator pedal after turning the

control switch. If the vehicle is stopped, the ignition

switch must be in the ON/RUN position with the

engine either running or off. This shift cannot be

completed if the ignition switch is in the ACC

position.

NOTE:

The four-wheel drive system will not allow shifts

between 2WD/4WD HIGH if the front and/or rear

wheels are spinning (no traction). In this situation,

the selected position indicator light will flash and

the original position indicator light will remain on.

At this time, reduce speed and stop spinning the

wheels to complete the shift.

2WD OR 4WD HIGH TO 4WD LOW

NOTE:

When shifting into or out of 4WD LOW some gear

noise may be heard. This noise is normal and is not

detrimental to the vehicle or occupants.
Shifting can be performed with the vehicle rolling

2 to 3 mph (3 to 5 km/h) or completely stopped.

You can use either of the following procedures:
Preferred Procedure
1. With the engine running, slow the vehicle to

2 to 3 mph (3 to 5 km/h).

2. Shift the transmission into NEUTRAL.
3. While still rolling, push the desired position on

the transfer case control switch.

4. After the desired position indicator light is on

(not flashing), shift the transmission back into

gear.

Alternate Procedure
1. Bring the vehicle to a complete stop.
2. With the ignition switch in the ON/RUN

position and the engine running, shift the

transmission into NEUTRAL.

3. Push the desired position on the transfer case

control switch.

4. After the desired position indicator light is on

(not flashing), shift the transmission back into

gear.

NOTE:



If Steps 1 or 2 of either the Preferred or Alter

-

nate Procedure are not satisfied prior to

attempting the shift, then the desired position

indicator light will flash continuously while the

original position indicator light is on, until all

requirements have been met.



The ignition switch must be in the ON/RUN posi

-

tion for a shift to take place and for the position

indicator lights to be operable. If the ignition

switch is not in the ON/RUN position, the shift

will not take place and no position indicator

lights will be on or flashing.

4

138

STARTING AND OPERATING

M

ANUALLY

S

HIFTED

T

RANSFER

C

ASE

—

I

F

E

QUIPPED

The transfer case provides four positions:



Two-Wheel Drive High Range (2H)



Four-Wheel Drive Lock High Range (4H)



N (Neutral)



Four-Wheel Drive Low Range (4L)

For additional information on the appropriate use

of each transfer case position, see the information

below:
2H
Two-Wheel Drive High Range — This range is for

normal street and highway driving on dry, hard

surfaced roads.
4H
Four-Wheel Drive Lock High Range — This range

locks the front and rear driveshafts together

forcing the front and rear wheels to rotate at the

same speed. Additional traction for loose, slippery

road surfaces only.
N (Neutral)
N (Neutral) — This range disengages both the front

and rear driveshafts from the powertrain. To be

used for flat towing behind another vehicle

Ú

page 185.

4L
Four-Wheel Drive Low Range — This range locks

the front and rear driveshafts together forcing the

front and rear wheels to rotate at the same speed.

Additional traction and maximum pulling power for

loose, slippery road surfaces only. Do not exceed

25 mph (40 km/h).
This transfer case is intended to be driven in the

2H position for normal street and highway

conditions such as dry, hard surfaced roads.
When additional traction is required, the 4H and 4L

positions can be used to lock the front and rear

driveshafts together and force the front and rear

wheels to rotate at the same speed. This is

accomplished by simply moving the gear selector

to the desired positions once the appropriate

speed and gear requirements are met

Ú

page 137.

The 4H and 4L positions are intended for loose,

slippery road surfaces only. Driving in the 4H and

4L positions on dry, hard surfaced roads may

cause increased tire wear and damage to the

driveline components.
The Transfer Case Position Indicator Light in the

instrument cluster will alert the driver that the

vehicle is in four-wheel drive and that the front and

rear driveshafts are locked together. This light will

illuminate when the transfer case is shifted into

either the 4H or 4L position. There is no light for the

2H or N (Neutral) positions on some models.
When operating your vehicle in 4L, the engine

speed is approximately three times that of the

two-wheel drive or 4H positions at a given road

speed. Take care not to overspeed the engine and

do not exceed 25 mph (40 km/h).
Proper operation of four-wheel drive vehicles

depends on tires of equal size, type and

circumference on each wheel. Any difference will

adversely affect shifting and can cause damage to

the drivetrain.

NOTE:

Do not attempt to make a shift while only the front

or rear wheels are spinning, as this can cause

damage to driveline components.
Because four-wheel drive provides improved

traction, there is a tendency to exceed safe turning

and stopping speeds. Do not go faster than road

conditions permit.

NOTE:

Delayed shifts out of four-wheel drive may be expe

-

rienced due to uneven tire wear, low or uneven tire

pressures, excessive vehicle loading, or cold

temperatures.