User Manual - Page 207

For RAM 2021 3500.

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STARTING AND OPERATING 205
NOTE:
You cannot engage ACC under the following
conditions:
When in 4WD Low
When brakes are applied
When the parking brake is applied
When the automatic transmission is in PARK,
REVERSE or NEUTRAL
When the vehicle speed is below the
minimum speed range
When the brakes are overheated
When the driver’s door is open at low speeds
When the driver’s seat belt is unbuckled at
low speed
Electronic Stability Control (ESC) Full Off
mode is active
To Activate/Deactivate
Push and release the Adaptive Cruise Control
(ACC) on/off button. The ACC menu in the
instrument cluster displays “ACC 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.”
To Set A Desired ACC Speed
When the vehicle reaches the speed desired,
push the SET (-) button and release. The
instrument cluster display will show the set
speed.
NOTE:
Fixed Speed Cruise Control can be used without
an ACC distance set. To change between the
different modes, push the ACC on/off button
which turns the ACC and the Fixed Speed Cruise
Control off. Pushing the Fixed Speed Cruise
Control on/off button will result in turning on
(changing to) Fixed Speed Cruise Control mode.
If ACC is set when the vehicle speed is below
20 mph (32 km/h), the set speed will default to
20 mph (20 km/h).
NOTE:
Fixed Speed Cruise Control cannot be set below
20 mph (32 km/h).
If either system is set when the vehicle speed is
above 20 mph (32 km/h), the set speed shall
be the current speed of the vehicle.
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.
WARNING!
In the Fixed Speed Cruise Control mode (no
ACC distance set), 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.
4
21_DJD2_OM_EN_USC_t.book Page 205
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