RAM 3500 (2019 year). Manual — part 23

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Distance Setting 3 Bars (Long)

Distance Setting 2 Bars (Medium)

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Distance Setting 1 Bar (Short)

The system automatically defaults to the longest distance

setting. To decrease the distance setting, push the Distance

Button and release. Each time the button is pushed, the

distance setting decreases by one bar. Once the shortest

setting is reached, if the button is pushed again it will reset

to the default setting (longest).
If there is no vehicle ahead, the vehicle will maintain the set

speed. If a slower moving vehicle is detected in the same

lane, the instrument cluster displays the “Sensed Vehicle

Indicator” icon, and the system adjusts vehicle speed auto-

matically to maintain the distance setting, regardless of the

set speed.

The vehicle will then maintain the set distance until:
• The vehicle ahead accelerates to a speed above the set

speed.

• The vehicle ahead moves out of your lane or view of the

sensor.

• The distance setting is changed.
• The system disengages. (Refer to the information on ACC

Activation).

The maximum braking applied by ACC is limited; however,

the driver can always apply the brakes manually, if neces-

sary.
NOTE:

The brake lights will illuminate whenever the ACC system

applies the brakes.
A Proximity Warning will alert the driver if ACC predicts

that its maximum braking level is not sufficient to maintain

the set distance. If this occurs, a visual alert “BRAKE” will

flash in the instrument cluster display and a chime will

sound while ACC continues to apply its maximum braking

capacity.

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Brake Alert

NOTE:

The “Brake!” Screen in the instrument cluster display is a

warning for the driver to take action and does not necessarily

mean that the Forward Collision Warning system is

applying the brakes autonomously.
Trailer Detect — If Equipped
When a trailer is detected, the ACC system automatically

defaults to the longest setting (four bars). The setting can be

overridden by pushing the Distance Button on the steering

wheel.

Overtake Aid

When driving with ACC engaged and following a vehicle,

the system will provide an additional acceleration up to the

ACC set speed to assist in passing the vehicle. This addi-

tional acceleration is triggered when the driver utilizes the

left turn signal and will only be active when passing on the

left hand side.

ACC Operation At Stop

In the event that the ACC system brings your vehicle to a

standstill while following a target vehicle, if the target

vehicle starts moving within two seconds of your vehicle

coming to a standstill, your vehicle will resume motion

without the need for any driver action.
If the target vehicle does not start moving within two

seconds of your vehicle coming to a standstill, then ACC will

cancel and the driver must take over braking. When the

target vehicle drives off, ACC can be resumed by releasing

the brake and pushing the RES (+) button.

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NOTE:

After the ACC system holds your vehicle at a standstill for

approximately two seconds, a chime will sound and an

“ACC may cancel soon” warning will display. The brakes

will release when ACC is cancelled and the driver must take

over braking.
While ACC is holding your vehicle at a standstill, if the

driver seatbelt is unbuckled or the driver door is opened, the

parking brake will be activated, and the ACC system will be

cancelled.

Adaptive Cruise Control (ACC) Menu

The instrument cluster display will show the current ACC

system settings. The instrument cluster display is located in

the center of the instrument cluster. The information it

displays depends on ACC system status.
Push the Adaptive Cruise Control (ACC) on/off button

(located on the steering wheel) until one of the following

appears in the instrument cluster display:
Adaptive Cruise Control Off
When ACC is deactivated, the display will read “Adaptive

Cruise Control Off.”
Adaptive Cruise Control Ready
When ACC is activated, but the vehicle speed setting has not

been selected, the display will read “Adaptive Cruise

Control Ready.”

WARNING!

When the ACC system is resumed, the driver must

ensure that there are no pedestrians, vehicles or objects

in the path of the vehicle. Failure to follow these

warnings can result in a collision and death or serious

personal injury.

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Adaptive Cruise Control Set
When the RES (+) or the SET(-) button (located on the

steering wheel) is pushed, the display will read “ACC SET.”
When ACC is set, the set speed will show in the instrument

cluster display.
The ACC screen may display once again if any ACC activity

occurs, which may include any of the following:
• System Cancel
• Driver Override
• System Off
• ACC Proximity Warning
• ACC Unavailable Warning

The instrument cluster display will return to the last

display selected after five seconds of no ACC display

activity

Display Warnings And Maintenance

“Wipe Front Radar Sensor In Front Of Vehicle” Warning

The “ACC/FCW Unavailable Wipe Front Radar Sensor”

warning will display and also a chime will indicate when

conditions temporarily limit system performance.
This most often occurs at times of poor visibility, such as in

snow or heavy rain. The ACC system may also become

temporarily blinded due to obstructions, such as mud, dirt or

ice. In these cases, the instrument cluster display will display

“ACC/FCW Unavailable Wipe Front Radar Sensor” and the

system will deactivate.
The “ACC/FCW Unavailable Wipe Front Radar Sensor”

message can sometimes be displayed while driving in highly

reflective areas (i.e. tunnels with reflective tiles, or ice and

snow). The ACC system will recover after the vehicle has left

these areas. Under rare conditions, when the radar is not

tracking any vehicles or objects in its path this warning may

temporarily occur.
NOTE:

If the “ACC/FCW Unavailable Wipe Front Radar Sensor”

warning is active Normal (Fixed Speed) Cruise Control is

still available. For additional information refer to “Normal

(Fixed Speed) Cruise Control Mode” in this section.

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If weather conditions are not a factor, the driver should

examine the sensor. It may require cleaning or removal of an

obstruction. The sensor is located in the camera in the center

of the windshield, on the forward side of the rearview

mirror.
To keep the ACC System operating properly, it is important

to note the following maintenance items:
• Always keep the sensor clean. Carefully clear the wind-

shield.

• Do not remove any screws from the sensor. Doing so could

cause an ACC system malfunction or failure and require a

sensor realignment.

• Do not attach or install any accessories near the sensor,

including transparent material or aftermarket grilles.

Doing so could cause an ACC system failure or malfunc-

tion.

When the condition that deactivated the system is no longer

present, the system will return to the “Adaptive Cruise

Control Off” state and will resume function by simply reac-

tivating it.

NOTE:
• If the “ACC/FCW Unavailable Wipe Front Radar Sensor”

message occurs frequently (e.g. more than once on every

trip) without any snow, rain, mud, or other obstruction,

have the radar sensor realigned at your authorized dealer.

• Installing a snow plow, front-end protector, an after-

market grille or modifying the grille is not recommended.

Doing so may block the sensor and inhibit ACC/FCW

operation.

“Clean Front Windshield” Warning

The “ACC/FCW Limited Functionality Clean Front Wind-

shield” warning will display and also a chime will indicate

when conditions temporarily limit system performance. This

most often occurs at times of poor visibility, such as in snow

or heavy rain and fog. The ACC system may also become

temporarily blinded due to obstructions, such as mud, dirt,

or ice on windshield, driving directly into the sun and fog on

the inside of glass. In these cases, the instrument cluster

display will show “ACC/FCW Limited Functionality Clean

Front Windshield” and the system will have degraded

performance.

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371

The “ACC/FCW Limited Functionality Clean Front Wind-

shield” message can sometimes be displayed while driving

in adverse weather conditions. The ACC/FCW system will

recover after the vehicle has left these areas. Under rare

conditions, when the camera is not tracking any vehicles or

objects in its path this warning may temporarily occur.
If weather conditions are not a factor, the driver should

examine the windshield and the camera located on the back

side of the inside rear view mirror. They may require

cleaning or removal of an obstruction.
When the condition that created limited functionality is no

longer present, the system will return to full functionality.
NOTE:

If the “ACC/FCW Limited Functionality Clean Front Wind-

shield” message occurs frequently (e.g. more than once on

every trip) without any snow, rain, mud, or other obstruc-

tion, have the windshield and forward facing camera

inspected at your authorized dealer.

Service ACC/FCW Warning

If the system turns off, and the instrument cluster displays

“ACC/FCW Unavailable Service Required” or “Cruise/

FCW Unavailable Service Required”, there may be an

internal system fault or a temporary malfunction that limits

ACC functionality. Although the vehicle is still drivable

under normal conditions, ACC will be temporarily unavail-

able. If this occurs, try activating ACC again later, following

an ignition cycle. If the problem persists, see your authorized

dealer.

Precautions While Driving With ACC

In certain driving situations, ACC may have detection issues.

In these cases, ACC may brake late or unexpectedly. The

driver needs to stay alert and may need to intervene.
NOTE:
• Aftermarket add-ons such as snow plows, lift kits, and

brush/grille bars can hinder module performance. Ensure

the radar/camera has no obstructions in the field of view.

• Height modifications can limit module performance and

functionality.

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• Do not put stickers or easy passes over the camera/radar

field of view.

• Any modifications to the vehicle that may obstruct the

field of view of the radar/camera are not recommended.

Cleaning Instructions

Dust and dirt can accumulate on the cover and block the

camera lens. Clean the camera lens with a soft microfiber

cloth, being careful not to damage or scratch the module.
Towing A Trailer

ACC while towing a trailer is recommended only with an

Integrated Trailer Brake Controller. Aftermarket trailer

brake controllers will not activate the trailer brakes when

ACC is braking.

Offset Driving

ACC may not detect a vehicle in the same lane that is offset

from your direct line of travel, or a vehicle merging in from

a side lane. There may not be sufficient distance to the

vehicle ahead. The offset vehicle may move in and out of the

line of travel, which can cause your vehicle to brake or accel-

erate unexpectedly.

Offset Driving Condition Example

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Turns And Bends

When driving on a curve with ACC engaged, the system

may decrease the vehicle speed and acceleration for stability

reasons, with no target vehicle detected. Once the vehicle is

out of the curve the system will resume your original set

speed. This is a part of normal ACC system functionality.
NOTE:

On tight turns ACC performance may be limited.

Turn Or Bend Example

Using ACC On Hills

When driving on hills, ACC may not detect a vehicle in your

lane. Depending on the speed, vehicle load, traffic condi-

tions, and the steepness of the hills, ACC performance may

be limited.

ACC Hill Example

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Lane Changing

ACC may not detect a vehicle until it is completely in the

lane in which you are traveling. In the illustration shown,

ACC has not yet detected the vehicle changing lanes and it

may not detect the vehicle until it's too late for the ACC

system to take action. ACC may not detect a vehicle until it

is completely in the lane. There may not be sufficient

distance to the lane-changing vehicle. Always be attentive

and ready to apply the brakes if necessary.

Lane Changing Example

Narrow Vehicles

Some narrow vehicles traveling near the outer edges of the

lane or edging into the lane are not detected until they have

moved fully into the lane. There may not be sufficient

distance to the vehicle ahead.

Narrow Vehicle Example

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Stationary Objects And Vehicles

ACC does not react to stationary objects and stationary vehi-

cles. For example, ACC will not react in situations where the

vehicle you are following exits your lane and the vehicle

ahead is stopped in your lane. Always be attentive and ready

to apply the brakes if necessary.

Stationary Object And Stationary Vehicle Example

General Information

The following regulatory statement applies to all Radio

Frequency (RF) devices equipped in this vehicle:
This device complies with Part 15 of the FCC Rules and with

Industry Canada license-exempt RSS standard(s). Operation

is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,

including interference that may cause undesired opera-

tion.

NOTE:

Changes or modifications not expressly approved by the

party responsible for compliance could void the user’s

authority to operate the equipment.

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Normal (Fixed Speed) Cruise Control Mode

In addition to Adaptive Cruise Control mode, a Normal

(Fixed Speed) Cruise Control mode is available for cruising

at fixed speeds. The Normal (Fixed Speed) Cruise Control

mode is designed to maintain a set cruising speed without

requiring the driver to operate the accelerator. Speed Control

can only be operated if the vehicle speed is above 20 mph

(32 km/h).
To change between the different control modes, push the

Adaptive Cruise Control (ACC) on/off button which turns

the ACC on and the Normal (Fixed Speed) Cruise Control

off. Pushing of the Normal (Fixed Speed) Cruise Control on/

off button will result in turning on (changing to) the Normal

(Fixed Speed) Cruise Control mode.

To Set A Desired Speed

Turn the Normal (Fixed Speed) Cruise Control on.

When the vehicle has reached the desired speed,

push the RES (+) or SET (-) button and release.

Release the accelerator and the vehicle will operate at the

selected speed. Once a speed has been set a message

“CRUISE CONTROL SET TO MPH (km/h)” will appear

indicating what speed was set. This light will turn on when

the system is turned on via the on/off control. It turns green

when the cruise control is set.
To Vary The Speed Setting

To Increase Speed
When the Normal (Fixed Speed) Cruise Control is set, you

can increase speed by pushing the RES (+) button.
The driver's preferred units can be selected through the

instrument panel settings. Refer to ”Instrument Cluster

Display” in “Getting To Know Your Instrument Panel” for

more information. The speed increment shown is dependant

on the speed of U.S. (mph) or Metric (km/h) units:

WARNING!

In the Normal (Fixed Speed) Cruise Control mode, the

system will not react to vehicles ahead. In addition, the

proximity warning does not activate and no alarm will

sound even if you are too close to the vehicle ahead since

neither the presence of the vehicle ahead nor the

vehicle-to-vehicle distance is detected. Be sure to

maintain a safe distance between your vehicle and the

vehicle ahead. Always be aware which mode is selected.

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U.S. Speed (mph)
• Pushing the RES (+) button once will result in a 1 mph

increase in set speed. Each subsequent tap of the button

results in an increase of 1 mph.

• If the button is continually pushed, the set speed will

continue to increase in 5 mph increments until the button

is released. The increase in set speed is reflected in the

instrument cluster display.

Metric Speed (km/h)
• Pushing the RES (+) button once will result in a 1 km/h

increase in set speed. Each subsequent tap of the button

results in an increase of 1 km/h.

• If the button is continually pushed, the set speed will

continue to increase in 10 km/h increments until the

button is released. The increase in set speed is reflected in

the instrument cluster display.

To Decrease Speed
When the Normal (Fixed Speed) Cruise Control is set, you

can decrease speed by pushing the SET (-) button.
The driver's preferred units can be selected through the

instrument panel settings. Refer to ”Instrument Cluster

Display” in “Getting To Know Your Instrument Panel” for

more information. The speed decrement shown is dependant

on the speed of U.S. (mph) or Metric (km/h) units:
U.S. Speed (mph)
• Pushing the SET (-) button once will result in a 1 mph

decrease in set speed. Each subsequent tap of the button

results in a decrease of 1 mph.

• If the button is continually pushed, the set speed will

continue to decrease in 5 mph decrements until the button

is released. The decrease in set speed is reflected in the

instrument cluster display.

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Metric Speed (km/h)
• Pushing the SET (-) button once will result in a 1 km/h

decrease in set speed. Each subsequent tap of the button

results in a decrease of 1 km/h.

• If the button is continually pushed, the set speed will

continue to decrease in 10 km/h decrements until the

button is released. The decrease in set speed is reflected in

the instrument cluster display.

To Cancel

The following conditions will cancel the Normal (Fixed

Speed) Cruise Control without clearing the memory:
• The brake pedal is applied.
• The CANC button is pushed.
• The Electronic Stability Control/Traction Control System

(ESC/TCS) activates.

• The vehicle parking brake is applied.
• The braking temperature exceeds normal range (over-

heated).

• The gear selector is removed from the DRIVE position.
• The driver switches ESC to full-off mode.

To Resume Speed

To resume a previously set speed, push the RES (+) button

and release. Resume can be used at any speed above 20 mph

(32 km/h).
To Turn Off

The system will turn off and erase the set speed in memory if:
• The Normal (Fixed Speed) Cruise Control on/off button is

pushed.

• The ignition is turned OFF.
• You engage Four-Wheel Drive Low.
• The Adaptive Cruise Control (ACC) on/off button is

pushed.

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PARKSENSE REAR PARK ASSIST — IF EQUIPPED

The ParkSense Rear Park Assist system provides visual and

audible indications of the distance between the rear fascia

and a detected obstacle when backing up, e.g. during a

parking maneuver. Refer to “ParkSense System Usage

Precautions” in this section for limitations of this system and

recommendations.
ParkSense will retain the last system state (enabled or

disabled) from the last ignition cycle when the ignition is

changed to the ON/RUN position.
ParkSense can be active only when the gear selector is in

REVERSE. If ParkSense is enabled at this gear selector posi-

tion, the system will remain active until the vehicle speed is

increased to approximately 7 mph (11 km/h) or above.

When in REVERSE and above the system's operating speed,

a warning will appear within the instrument cluster display

indicating the vehicle speed is too fast. The system will

become active again if the vehicle speed is decreased to

speeds less than approximately 6 mph (9 km/h).

ParkSense Sensors

The four ParkSense sensors, located in the rear fascia/

bumper, monitor the area behind the vehicle that is within

the sensors’ field of view.
The sensors can detect obstacles from approximately

18 inches (45 cm) up to 79 inches (200 cm) from the rear

fascia/bumper in the horizontal direction, depending on the

location, type and orientation of the obstacle.
NOTE:

If equipped as a dually, the ParkSense system has six rear

sensors to assist in detection around the dually flares.

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ParkSense Warning Display

The ParkSense Warning screen is located within the instru-

ment cluster display. It provides visual warnings to indicate

the distance between the rear fascia/bumper and the

detected obstacle. Refer to “Instrument Cluster Display” in

“Getting To Know Your Instrument Panel” for further infor-

mation.

ParkSense Display

When the vehicle is in REVERSE, the warning display will

turn on indicating the system status.
The system will indicate a detected obstacle by showing a

single arc in the left and/or right rear regions based on the

object’s distance and location relative to the vehicle.
If an object is detected in the left and/or right rear region, the

display will show a single solid arc in the left and/or right

rear region and the system will produce a tone. As the

vehicle moves closer to the object, the display will show the

single arc moving closer to the vehicle and the tone will

change from a single 1/2 second tone to slow, to fast, to

continuous.