cruise control Ram 1500 2020 User Guide

342 STARTING AND OPERATING
Adaptive Cruise Control (ACC) Operation
The speed control buttons (located on the right side of the
steering wheel) operates the Adaptive Cruise Control (ACC)
system.Adaptive Cruise Control Buttons
• Does not always fully recognize complex driving
conditions, which can result in wrong or missing
distance warnings.
• Will bring the vehicle to a complete stop while following a target vehicle and hold the vehicle for
approximately three minutes in the stop position. If
the target vehicle does not start moving within three
minutes the parking brake will be activated, and the
ACC system will be cancelled.
You should switch off the ACC system:
• When driving in fog, heavy rain, heavy snow, sleet, heavy traffic, and complex driving situations (i.e., in
highway construction zones).
• When entering a turn lane or highway off ramp; when driving on roads that are winding, icy, snow-covered,
slippery, or have steep uphill or downhill slopes.
• When towing a trailer up or down steep slopes.
• When circumstances do not allow safe driving at a constant speed.
WARNING! (Continued)
1 — SET (+)/Accel
2 — Normal (Fixed Speed) Cruise Control On/Off
3 — RES/Resume
4 — SET (-)/Decel
5 — Distance Setting Decrease
6 — Adaptive Cruise Control (ACC) On/Off
7 — Distance Setting Increase
8 — CANC/Cancel
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NOTE:
Any chassis/suspension or tire size modifications to the
vehicle will effect the performance of the Adaptive Cruise
Control and Forward Collision Warning System.
Activating Adaptive Cruise Control (ACC)
You can only engage ACC if the vehicle speed is above
0 mph (0 km/h).
The minimum set speed for the ACC system is 20 mph
(32 km/h).
When the system is turned on and in the ready state, the
instrument cluster display will read “ACC Ready.”
When the system is off, the instrument cluster display will
read “Adaptive Cruise Control (ACC) Off.”NOTE:
You cannot engage ACC under the following conditions:
• When in Four-Wheel Drive Low
• When you apply the brakes
• When the parking brake is applied
• When the automatic transmission is in PARK, REVERSE or
NEUTRAL
• When the vehicle speed is outside of the speed range
• When the brakes are overheated
• When the driver door is open at low speed
• When the driver seat belt is unbuckled at low speed
• ESC Full-Off Mode is active
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344 STARTING AND OPERATING
To Activate/Deactivate
Push and release the Adaptive Cruise Control (ACC) on/off
button. The ACC menu in the instrument cluster displays
“ACC Ready.”Adaptive Cruise Control Ready
To turn the system off, push and release the Adaptive Cruise
Control (ACC) on/off button again. At this time, the system
will turn off and the instrument cluster display will show
“Adaptive Cruise Control (ACC) Off.” Adaptive Cruise Control Off
WARNING!
Leaving the Adaptive Cruise Control (ACC) system on
when not in use is dangerous. You could accidentally set
the system or cause it to go faster than you want. You
could lose control and have a collision. Always leave the
system off when you are not using it.
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346 STARTING AND OPERATING
To Turn Off
The system will turn off and clear the set speed in memory if:
• The Adaptive Cruise Control (ACC) on/off button ispushed.
• The Normal (Fixed Speed) Cruise Control on/off button is pushed.
• The ignition is placed in the OFF position.
• You switch to Four-Wheel Drive Low.
To Resume
If there is a set speed in memory push the RES (resume)
button and then remove your foot from the accelerator pedal.
The instrument cluster display will display the last set speed.
NOTE:
• If your vehicle stays at standstill for longer than two seconds, then the driver will either have to push the RES
(resume) button, or apply the accelerator pedal to reen -
gage the Adaptive Cruise Control (ACC) to the existing set
speed.
• ACC cannot be resumed if there is a stationary vehicle in-front of your vehicle in close proximity.
To Vary The Speed Setting
To Increase Speed
While ACC is set, you can increase the set speed by pushing
the SET (+) button.
The speed increment shown is dependent on the chosen
speed unit of U.S. (mph) or Metric (km/h):
U.S. Speed (mph)
• Pushing the SET (+) 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.
WARNING!
The Resume function should only be used if traffic and
road conditions permit. Resuming a set speed that is too
high or too low for prevailing traffic and road conditions
could cause the vehicle to accelerate or decelerate too
sharply for safe operation. Failure to follow these
warnings can result in a collision and death or serious
personal injury.
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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.
Overtake Aid
When driving with Adaptive Cruise Control (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 additional 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, the driver will
either have to push the RES (resume) button, or apply the
accelerator pedal to reengage the ACC to the existing Set
Speed.
NOTE:
After the ACC system holds your vehicle at a standstill for
approximately 3 consecutive minutes, the parking brake will
be activated, and the ACC system will be cancelled.
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.
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352 STARTING AND OPERATING
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.”
Adaptive Cruise Control Set
When the SET (+) 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
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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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.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.
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STARTING AND OPERATING 359
La operación de este equipo está sujeta a las siguientes dos
condiciones:
1. es posible que este equipo o dispositivo no cause interfer-
encia perjudicial y
2. este equipo o dispositivo debe aceptar cualquier interfer- encia, incluyendo la que pueda causar su operación no
deseada.
NOTE:
Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment.
Normal (Fixed Speed) Cruise Control Mode
In addition to Adaptive Cruise Control (ACC) 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 SET (+) 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.
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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360 STARTING AND OPERATING
To Vary The Speed Setting
To Increase Speed
When the Normal (Fixed Speed) Cruise Control is set, you
can increase 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 increment shown is dependent
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
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 SET (+) 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 dependent
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 placed in the OFF position.
• You engage Four-Wheel Drive Low.
• The Adaptive Cruise Control (ACC) on/off button is pushed.
PARKSENSE FRONT AND REAR PARK ASSIST
The ParkSense Park Assist system provides visual and
audible indications of the distance between the rear and/or
front fascia and a detected obstacle when backing up or
moving forward (e.g. during a parking maneuver). If your
vehicle is equipped with the automatic braking function, the
vehicle brakes may be automatically applied and released
when performing a reverse parking maneuver if the system
detects a possible collision with an obstacle.
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