Jeep Gladiator (2022 year). Manual in english — page 10
STARTING AND OPERATING
155
(Continued)
3. The system will automatically engage the
starter to crank the engine. If the vehicle fails
to start, the starter will disengage automat
-
ically after 25 seconds.
4. If you wish to stop the cranking of the engine
prior to the engine starting, push the ENGINE
START/STOP button again.
5. Check that the Oil Pressure Warning Light has
turned off.
6. Release the parking brake.
S
TARTING
F
LUIDS
The engine is equipped with a glow plug preheating
system. If the instructions in this manual are
followed, the engine should start in all conditions
and no type of starting fluid should be used.
NORMAL OPERATION — DIESEL ENGINE
Observe the following when the diesel engine is
operating:
All message center lights are off.
Malfunction Indicator Light (MIL) is off.
Engine Oil Pressure telltale is not illuminated.
Voltmeter operation.
The voltmeter may show a gauge fluctuation at
various engine temperatures. This is caused by the
glow plug heating system. The number of cycles
and the length of the cycling operation is controlled
by the engine control module. Glow plug heater
operation can run for several minutes. Once the
heater operation is complete the voltmeter needle
will stabilize.
C
OLD
W
EATHER
P
RECAUTIONS
Operation in ambient temperature below 32°F
(0°C) may require special considerations. The
following charts suggest these options:
Fuel Operating Range
NOTE:
Use Ultra Low Sulfur Diesel (ULSD) Fuels ONLY.
WARNING!
Do not leave children or animals inside parked
vehicles in hot weather. Interior heat build-up
may cause serious injury or death.
When leaving the vehicle, always make sure
the keyless ignition node is in the OFF posi
-
tion, 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 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 of 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!
4
156
STARTING AND OPERATING
Fuel Operating Range Chart
*Number 1 ULSD Fuel should only be used where
extended arctic conditions 0°F (-18°C) exist.
NOTE:
Use of Climatized ULSD Fuel or Number 1 ULSD
fuel results in a noticeable decrease in fuel
economy.
Climatized ULSD fuel is a blend of Number 2
ULSD fuel and Number 1 ULSD fuel which
reduces the temperature at which wax crystals
form in fuel.
The fuel grade should be clearly marked on the
pump at the fuel station.
The engine requires the use of Ultra Low Sulfur
Diesel Fuel. Use of incorrect fuel could result in
engine and exhaust system damage
If climatized or Number 1 ULSD fuel is not avail
-
able, and you are operating below 20°F (-6°C),
in sustained arctic conditions, Mopar®
Premium Diesel Fuel Treatment (or equivalent)
is recommended to avoid gelling (see Fuel Oper
-
ating Range Chart).
Engine Oil Usage
See Engine Fluids and Lubricants for the correct
Engine Warm-Up
Avoid full throttle operation when the engine is
cold. When starting a cold engine, bring the engine
up to operating speed slowly to allow the oil
pressure to stabilize as the engine warms up.
If temperatures are below 32°F (0°C), operate the
engine at moderate speeds for five minutes before
full loads are applied.
E
NGINE
I
DLING
Avoid prolonged idling. Long periods of idling may
be harmful to your engine because combustion
chamber temperatures can drop so low that the
fuel may not burn completely. Incomplete
combustion allows carbon and varnish to form on
piston rings, cylinder head valves, turbocharger,
and injector nozzles. Also, the unburned fuel can
enter the crankcase, diluting the oil and causing
rapid wear to the engine.
STARTING AND OPERATING
157
S
TOPPING
T
HE
E
NGINE
After full load operation, idle the engine for a few minutes before shutting it down. This idle period will allow the lubricating oil and coolant to carry excess heat
away from the turbocharger.
NOTE:
Refer to the following chart for proper engine shutdown.
NOTE:
Under certain conditions the engine stop/start functionality may be temporarily disabled and the engine fan will run after the engine is turned off to protect the
engine. These conditions are under high load and high temperature conditions.
Driving Condition
Load
Turbocharger Temperature
Idle Time (min.) Before Engine
Shutdown
Stop and Go
Empty
Cool
None
Stop and Go
Medium
0.5
Highway Speeds
Medium
Warm
1.0
City Traffic
Maximum GCWR
1.5
Highway Speeds
Maximum GCWR
2.0
Uphill Grade
Maximum GCWR
Hot
2.5
4
158
STARTING AND OPERATING
C
OOLING
S
YSTEM
T
IPS
— A
UTOMATIC
T
RANSMISSION
To reduce the potential for engine and
transmission overheating in high ambient
temperature conditions, take the following actions:
City Driving — When stopped, shift the transmis
-
sion into NEUTRAL (N) and increase engine idle
speed.
Highway Driving — Reduce your speed.
Up Steep Hills — Select a lower transmission
gear.
Air Conditioning — Turn it off temporarily.
NOTE:
If the coolant temperature is too high, the A/C will
automatically turn off.
Do Not Operate The Engine With Low Oil
Pressure
If the Low Oil Pressure Warning Light turns on while
driving, stop the vehicle and shut down the engine
as soon as possible. After the vehicle is safely
stopped, restart the engine and monitor the lamp.
If the lamp is still illuminated, shut the engine off,
contact an authorized dealer, and do not operate
the vehicle until the cause is corrected. If the lamp
is no longer illuminated, the engine can be
operated, but should be taken to an authorized
dealer as soon as possible for further inspection.
NOTE:
Do not operate the vehicle until the cause is
corrected. This light does not show how much oil is
in the engine. The engine oil level must be checked
under the hood.
Do Not Operate The Engine With Failed
Parts
All engine failures give some warning before the
parts fail. Be on the alert for changes in
performance, sounds, and visual evidence that the
engine requires service. Some important clues are:
Engine misfiring or vibrating severely
Sudden loss of power
Unusual engine noises
Fuel, oil or coolant leaks
Sudden change, outside the normal operating
range, in the engine operating temperature
Excessive smoke
Oil pressure drop
ENGINE BREAK-IN RECOMMENDATIONS —
GASOLINE ENGINE (IF EQUIPPED)
A long break-in period is not required for the engine
and drivetrain (transmission and axle) in your
vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km),
speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
While cruising, brief full-throttle acceleration within
the limits of local traffic laws contributes to a good
break-in. Wide-open throttle acceleration in low
gear can be detrimental and should be avoided.
The engine oil installed in the engine at the factory
is a high-quality energy conserving type lubricant.
Oil changes should be consistent with anticipated
climate conditions under which vehicle operations
will occur.
For the recommended viscosity and quality grades
CAUTION!
If oil pressure falls to less than normal readings,
shut the engine off immediately. Failure to do so
could result in immediate and severe engine
damage.
CAUTION!
Never use Non-Detergent Oil or Straight Mineral
Oil in the engine or damage may result.
STARTING AND OPERATING
159
NOTE:
A new engine may consume some oil during its first
few thousand miles (kilometers) of operation. This
should be considered a normal part of the break-in
and not interpreted as a problem.
ENGINE BREAK-IN RECOMMENDATIONS —
DIESEL ENGINE (IF EQUIPPED)
The diesel engine does not require a break-in
period due to its construction. Normal operation is
allowed, providing the following recommendations
are followed:
Warm up the engine before placing it under
load.
Do not operate the engine at idle for prolonged
periods.
Use the appropriate transmission gear to
prevent engine lugging.
Observe vehicle oil pressure and temperature
indicators.
Check the coolant and oil levels frequently.
Vary throttle position at highway speeds when
carrying or towing significant weight.
NOTE:
Light duty operation such as light trailer towing or
no load operation will extend the time before the
engine is at full efficiency. Reduced fuel economy
and power may be seen at this time.
The engine oil installed in the engine at the factory
is a high-quality energy conserving type lubricant.
Oil changes should be consistent with anticipated
climate conditions under which vehicle operations
will occur. For recommended viscosity and quality
page 458. NON-DETERGENT OR
STRAIGHT MINERAL OILS MUST NEVER BE USED.
PARKING BRAKE
Before exiting the vehicle, make sure that the
parking brake is fully applied. Also, be certain to
leave an automatic transmission in PARK, or
manual transmission in REVERSE or FIRST gear.
The parking brake lever is located in the center
console. To apply the parking brake, pull the lever
up as firmly as possible. To release the parking
brake, pull the lever up slightly, push the center
button, then lower the lever completely.
Parking Brake Lever
When the parking brake is applied with the ignition
switch ON, the Brake Warning Light in the
instrument cluster will illuminate.
NOTE:
When the parking brake is applied and the auto
-
matic transmission is placed in gear, the Brake
Warning Light will flash. If vehicle speed is
detected, a chime will sound to alert the driver.
Fully release the parking brake before
attempting to move the vehicle.
This light only shows that the parking brake is
applied. It does not show the degree of brake
application.
4
160
STARTING AND OPERATING
(Continued)
When parking on a hill, it is important to turn the
front wheels toward the curb on a downhill grade
and away from the curb on an uphill grade. For
vehicles equipped with an automatic transmission,
apply the parking brake before placing the gear
selector in PARK, otherwise the load on the
transmission locking mechanism may make it
difficult to move the gear selector out of PARK.
MANUAL TRANSMISSION — IF EQUIPPED
WARNING!
Never use the PARK position on an automatic
transmission as a substitute for the parking
brake. Always apply the parking brake fully
when parked to guard against vehicle move
-
ment and possible injury or damage.
When exiting the vehicle, always remove the
key fob from the vehicle and lock your 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 gear
selector.
Do not leave the key fob in or near the vehicle,
or in a location accessible to children. A child
could operate power windows, other controls,
or move the vehicle.
Be sure the parking brake is fully disengaged
before driving; failure to do so can lead to
brake failure and a collision.
Always fully apply the parking brake when
leaving your vehicle or it may roll and cause
damage or injury. Also, be certain to leave an
automatic transmission in PARK, a manual
transmission in REVERSE or FIRST gear.
Failure to do so may cause the vehicle to roll
and cause damage or injury.
CAUTION!
If the Brake Warning Light remains on with the
parking brake released, a brake system
malfunction is indicated. Have the brake system
serviced by an authorized dealer immediately.
WARNING!
WARNING!
You or others could be injured if you leave the
vehicle unattended without having the parking
brake fully applied. The parking brake should
always be applied when the driver is not in the
vehicle, especially on an incline.
CAUTION!
Never drive with your foot resting on or
partially pressing the clutch pedal. Never
attempt to hold the vehicle on a hill with the
clutch pedal partially engaged. Operating
vehicle in this manner may cause the clutch to
overheat and cause permanent damage to
the clutch. If you continue to operate the
vehicle in this manner, the “Clutch Hot”
message or Transmission Temperature
Warning Light will be displayed in the instru
-
ment cluster. For more information
Do not drive with your hand resting on the gear
selector as the force exerted, even if slight,
could lead over time to premature wear of the
gearbox internal components.
STARTING AND OPERATING
161
NOTE:
During cold weather, you may experience
increased effort in shifting until the transmission
fluid warms up. This is normal.
Manual Transmission Shifter
To shift the gears, fully press the clutch pedal and
place the gear selector into the desired gear
position (the diagram for the engagement of the
gears is displayed on the handle of the selector).
The gear position will be displayed in the
instrument cluster.
To engage REVERSE gear from the NEUTRAL
position, lift the REVERSE ring, located below the
knob and move the gear selector all the way left
and then forward.
Shift Pattern
S
HIFTING
Fully press the clutch pedal before shifting gears.
As you release the clutch pedal, lightly press the
accelerator pedal.
You should always use FIRST gear when starting
from a standing position.
NOTE:
A certain amount of noise from the transmission is
normal. This noise can be most noticeable when
the vehicle is idling in NEUTRAL with the clutch
engaged (clutch pedal released), but it may also be
heard when driving. The noise may also be more
noticeable when the transmission is warm. This
noise is normal and is not an indication of a
problem with your clutch or transmission.
4
162
STARTING AND OPERATING
(Continued)
Recommended Vehicle Shift Speeds
To utilize your manual transmission efficiently for both fuel economy and performance, it should be upshifted as listed in the recommended shift speed chart.
Shift at the vehicle speeds listed for acceleration. When heavily loaded or pulling a trailer, these recommended up shift speeds may not apply.
NOTE:
Vehicle speeds shown in the chart above are for
2H and 4H only. Vehicle speeds in 4L would be
significantly less.
D
OWNSHIFTING
Moving from a high gear down to a lower gear is
recommended to preserve brakes when driving
down steep hills. In addition, downshifting at the
right time provides better acceleration when you
desire to resume speed. Downshift progressively.
Do not skip gears to avoid overspeeding the engine
and clutch.
NOTE:
Above certain speeds, downshifts may be blocked
and not available.
Manual Transmission Shift Speeds in MPH (KM/H)
Engine
Speeds
1 to 2
2 to 3
3 to 4
4 to 5
5 to 6
3.6L
Accel.
15 (24)
24 (39)
50 (80)
65 (104)
70 (112)
Cruise
10 (16)
19 (31)
40 (64)
55 (88)
65 (105)
WARNING!
Do not downshift for additional engine braking
on a slippery surface. The drive wheels could
lose their grip, and the vehicle could skid.
CAUTION!
Skipping gears and downshifting into lower
gears at higher vehicle speeds can damage
the engine and clutch systems. Any attempt to
shift into lower gear with clutch pedal pressed
may result in damage to the clutch system.
Shifting into lower gear and releasing the
clutch may result in engine damage.
When descending a hill, be very careful to
downshift one gear at a time to prevent over
-
speeding the engine which can cause engine
damage, and/or clutch damage, even if the
clutch pedal is pressed. If transfer case is in
low range the vehicle speeds to cause engine
and clutch damage are significantly lower.
Failure to follow the maximum recommended
downshifting speeds may cause engine
damage and/or damage the clutch, even if the
clutch pedal is pressed.
Descending a hill in low range with clutch
pedal pressed could result in clutch damage.
CAUTION!
STARTING AND OPERATING
163
(Continued)
(Continued)
Maximum Recommended Downshift
Speeds
NOTE:
Vehicle speeds shown in the chart above are for
2H and 4H only, vehicle speeds in 4L would be
significantly less.
AUTOMATIC TRANSMISSION —
IF EQUIPPED
You must press and hold the brake pedal while
shifting out of PARK.
CAUTION!
Failure to follow the maximum recommended downshifting speeds may cause the engine to overspeed and/or damage the clutch disc, even if the clutch
pedal is pressed.
Manual Transmission Downshift Speeds in MPH (KM/H)
Gear Selection
6 to 5
5 to 4
4 to 3
3 to 2
2 to 1
Maximum Speed
80 (129)
70 (113)
50 (81)
30 (48)
15 (24)
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.
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.
WARNING!
4
164
STARTING AND OPERATING
(Continued)
I
GNITION
P
ARK
I
NTERLOCK
This vehicle is equipped with an Ignition Park
Interlock system which requires the transmission
to be in PARK before the ignition can be turned to
the OFF position. This helps the driver avoid
inadvertently leaving the vehicle without placing
the transmission in PARK. This system also locks
the transmission in PARK whenever the ignition is
in the OFF position.
NOTE:
The transmission is NOT locked in PARK when the
ignition is in the ACC position (even though the
engine will be off). Ensure that the transmission is
in PARK, and the ignition is OFF (not in ACC
position) before exiting the vehicle.
B
RAKE
/T
RANSMISSION
S
HIFT
I
NTERLOCK
(BTSI) S
YSTEM
This vehicle is equipped with a BTSI system that
holds the transmission gear selector in PARK
unless the brakes are applied. To shift the
transmission out of PARK, the engine must be
running and the brake pedal must be pressed. The
brake pedal must also be pressed to shift from
NEUTRAL into DRIVE or REVERSE when the vehicle
is stopped or moving at low speeds.
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.
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.
WARNING!
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!
Shift into or out of PARK or REVERSE only after
the vehicle has come to a complete stop.
Do not shift between PARK, REVERSE,
NEUTRAL, or DRIVE when the engine is above
idle speed.
Before shifting into any gear, make sure your
foot is firmly pressing the brake pedal.
WARNING!
STARTING AND OPERATING
165
8–S
PEED
A
UTOMATIC
T
RANSMISSION
The transmission gear range (PRNDM) is displayed
both beside the gear selector and in the
instrument cluster. To select a gear range, push
the lock button on the gear selector and move the
selector rearward or forward. To shift the
transmission out of PARK, the engine must be
running and the brake pedal must be pressed. You
must also press the brake pedal to shift from
NEUTRAL into DRIVE or REVERSE when the vehicle
is stopped or moving at low speeds. Select the
DRIVE range for normal driving.
NOTE:
In the event of a mismatch between the gear
selector position and the actual transmission gear
(for example, driver selects PARK while driving),
the position indicator will blink continuously until
the selector is returned to the proper position, or
the requested shift can be completed.
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 provides PARK,
REVERSE, NEUTRAL, DRIVE and MANUAL
(AutoStick) shift positions. Manual shifts can be
made using the AutoStick shift control. Toggling
the gear selector forward (-) or rearward (+) while
in the MANUAL (AutoStick) position (beside the
DRIVE position) will manually select the
transmission gear, and will display the current gear
Gear Selector
NOTE:
If the gear selector cannot be moved to the PARK,
REVERSE, or NEUTRAL position (when pushed
forward), it is probably in the AutoStick (+/-)
position (beside the DRIVE position). In AutoStick
mode, the transmission gear (1, 2, 3, etc.) is
displayed in the instrument cluster. Move the gear
selector to the right (into the DRIVE [D] position) for
access to PARK, REVERSE, and NEUTRAL.
G
EAR
R
ANGES
Do not press the accelerator pedal when shifting
out of PARK or NEUTRAL.
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.
4
166
STARTING AND OPERATING
(Continued)
(Continued)
When exiting the vehicle, always:
Apply the parking brake
Shift the transmission into PARK
Turn the ignition off
Remove the key fob from the vehicle
NOTE:
On four-wheel drive vehicles, be sure that the
transfer case is in a drive position.
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.
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!
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.
DO NOT race the engine when shifting from
PARK or NEUTRAL into another gear range, as
this can damage the drivetrain.
WARNING!
STARTING AND OPERATING
167
The following indicators should be used to ensure
that you have properly engaged the transmission
into the PARK position:
When shifting into PARK, push the lock button
on the gear selector and firmly move the gear
selector all the way forward until it stops and is
fully seated.
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.
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. The DRIVE position should be used
for all normal operating conditions.
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), use
the AutoStick shift control to select a lower gear
page 168. Under these conditions, using a lower
gear 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.
MANUAL (M)
The MANUAL (M, +/-) position (beside the DRIVE
position) enables full manual control of
transmission shifting also known as AutoStick
mode. Toggling the gear selector forward (-) or
rearward (+) while in the MANUAL (AutoStick)
position will manually select the transmission gear,
and will display the current gear in the instrument
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.
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.
4
168
STARTING AND OPERATING
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).
Even if the transmission can be reset, we recom
-
mend 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.
1. Stop the vehicle.
2. Shift the transmission into PARK, if possible. If
not, shift the transmission to NEUTRAL.
3. Push and hold the ENGINE START/STOP
button 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.
AutoStick
AutoStick is a driver-interactive transmission
feature providing manual shift control, giving you
more control of the vehicle. AutoStick allows you to
maximize engine braking, eliminate undesirable
upshifts and downshifts, and improve overall
vehicle performance. This feature can also provide
you with more control during passing, city driving,
cold slippery conditions, mountain driving, trailer
towing, and many other situations.
Operation
To activate AutoStick mode, move the gear
selector into the MANUAL (M) position (beside the
DRIVE position). The current transmission gear will
be displayed in the instrument cluster. In AutoStick
mode, you can use the gear selector (in the
MANUAL position) to manually shift the
transmission. Tapping the gear selector forward (-)
while in the MANUAL (M) position will downshift the
transmission to the next lower gear. Tapping the
selector rearward (+) will command an upshift.
In AutoStick mode, the transmission will shift up or
down when (+/-) is manually selected by the driver,
unless an engine lugging or overspeed condition
would result.
It will remain in the selected gear until another
upshift or downshift is chosen, except as described
below:
The transmission will automatically downshift
as the vehicle slows (to prevent engine lugging)
and will display the current gear.
The transmission will automatically downshift to
FIRST gear when coming to a stop. After a stop,
the driver should manually upshift (+) the trans
-
mission as the vehicle is accelerated.
You can start out, from a stop, in FIRST or
SECOND gear (or THIRD gear, in 4L range).
Tapping (+) (at a stop) will allow starting in
SECOND gear. Starting out in SECOND or THIRD
gear can be helpful in snowy or icy conditions.
If a requested downshift would cause the
engine to overspeed, that shift will not occur.
The system will ignore attempts to upshift at too
low of a vehicle speed.
Holding the gear selector in the (-) position will
downshift the transmission to the lowest gear
possible at the current speed.
Transmission shifting will be more noticeable
when AutoStick is enabled.
The system may revert to automatic shift mode
if a fault or overheat condition is detected.
STARTING AND OPERATING
169
NOTE:
When Hill Descent Control is enabled, AutoStick is
not active.
To disengage AutoStick mode, return the gear
selector to the DRIVE position. You can shift in or
out of the AutoStick position at any time without
taking your foot off the accelerator pedal.
FOUR–WHEEL DRIVE OPERATION
F
OUR
-P
OSITION
T
RANSFER
C
ASE
— I
F
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QUIPPED
Four-Wheel Drive Gear Selector
The transfer case provides four positions:
2H (Two-Wheel Drive High Range)
4H (Four-Wheel Drive High Range)
N (Neutral)
4L (Four-Wheel Drive Low Range)
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 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.
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.
See Recreational Towing for further information
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!
Failure to engage a transfer case position
completely can cause transfer case damage or
loss of power and vehicle control. You could have
a collision. Do not drive the vehicle unless the
transfer case is fully engaged.
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 driveshafts from the powertrain, and will
allow the vehicle to roll, even if the automatic
transmission is in PARK (or manual transmission
is in gear). The parking brake should always be
applied when the driver is not in the vehicle.
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170
STARTING AND OPERATING
4L
Four-Wheel Drive Low Range — This range provides
low speed four-wheel drive. It maximizes torque to
the front driveshaft, 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).
The transfer case is intended to be driven in the 2H
position for normal street and highway conditions,
such as hard-surfaced roads.
In the event that additional traction is required, the
transfer case 4H and 4L positions can be used to
lock the front and rear driveshafts together, forcing
the front and rear wheels to rotate at the same
speed. The 4H and 4L positions are intended for
loose, slippery road surfaces only and not intended
for normal driving. Driving in the 4H and 4L
positions on hard-surfaced roads will cause
increased tire wear and damage to the driveline
components. For further information on shifting
The instrument cluster alerts the driver that the
vehicle is in four-wheel drive, and the front and
rear driveshafts are locked together. The light will
illuminate when the transfer case is shifted into
the 4H position.
When operating your vehicle in 4L, the engine
speed will be approximately three times (four times
for Rubicon models) that of the 2H or 4H positions
at a given road speed. Take care not to overspeed
the engine.
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 cause damage to the
transfer case.
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 Procedures
2H TO 4H OR 4H TO 2H
Shifting between 2H and 4H can be made with the
vehicle stopped or in motion. The preferred shifting
speed would be 0 to 45 mph (72 km/h). With the
vehicle in motion, the transfer case will engage/
disengage faster if you momentarily release the
accelerator pedal after completing the shift. Do not
accelerate while shifting the transfer case. Apply a
constant force when shifting the transfer case
lever.
NOTE:
Do not attempt to make a shift while only the
front or rear wheels are spinning. The front and
rear driveshaft speeds must be equal for the
shift to take place. Shifting while only the front
or rear wheels are spinning can cause damage
to the transfer case.
Delayed shifts out of four-wheel drive may be
experienced due to uneven tire wear, low or
uneven tire pressures, excessive vehicle
loading, or cold temperatures.
Shifting effort will increase with speed, this is
normal.
During cold weather, you may experience
increased effort in shifting until the transfer case
fluid warms up. This is normal.
4H TO 4L OR 4L TO 4H
With the vehicle rolling at 1 to 3 mph (2 to 5 km/h),
shift an automatic transmission into NEUTRAL (N),
or press the clutch pedal on a manual
transmission. While the vehicle is coasting at
1 to 3 mph (2 to 5 km/h), shift the transfer case
lever firmly to the desired position. Do not pause
with the transfer case in N (Neutral). Once the shift
is completed, place the automatic transmission
into DRIVE or release the clutch pedal on a manual
transmission.
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