RAM 1500 2WD 2021 Owner's Manual page 184

182 STARTING AND OPERATING
To Set A Desired ACC Speed
When the vehicle reaches the speed desired,
push the SET (+) button or 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.
WARNING!
In the 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.
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.
NOTE:
Keeping your foot on the accelerator pedal

can cause the vehicle to continue to accel-
erate beyond the set speed. If this occurs, the
message "ACC DRIVER OVERRIDE" will
display in the instrument cluster display.
If you continue to accelerate beyond the set

speed while an ACC distance is also set, the
system will not be controlling the distance
between your vehicle and the vehicle ahead.
The vehicle speed will only be determined by
the position of the accelerator pedal.
To Cancel
The following conditions cancel the ACC or Fixed
Speed Cruise Control systems:
The brake pedal is applied

The CANC (cancel) button is pushed

The Anti-Lock Brake system (ABS) activates

The trailer brake is applied manually (if

equipped)
The gear selector is removed from the DRIVE

position
The Electronic Stability Control/Traction

Control System (ESC/TCS) activates
The vehicle parking brake is applied

The Trailer Sway Control (TSC) activates

The driver switches ESC to Full Off mode

The braking temperature exceeds normal

range (overheated)
The following conditions will only cancel the ACC
system:
Driver seat belt is unbuckled at low speeds

Driver door is opened at low speeds
