Chevrolet Low Cab Forward 2023 Manual page 139

138 Driving and Operating
Activating High Idle Mode
Follow the below procedure to activate the
high idle mode:
1. Set the parking brake.
2. Set the selector lever in P (Park) or
N (Neutral) position.
3. Do not press the brake pedal.
4. Press the cruise control main switch to
set it to ON. At this time, the operation
indicating light will turn to green.
5. Turn and hold the cruise control set
switch in the SET position. After
approximately 3 seconds the cruise
control set indicator light will begin to
flash slowly and the engine idle will
increase to 1,200 r/min.
Canceling High Idle Mode
Any of the following actions will cancel high
idle mode.
The cruise control main switch is set
to OFF.
The brake pedal is pressed.
The parking brake is released.
The selector lever is moved from P (Park)
or N (Neutral) position.
The accelerator pedal is pressed,
accelerating the engine beyond the
engine speed threshold.
The cruise set indicator light will stop
flashing and the engine speed will return to
normal.
When the engine control switch is turned
on, the indicator light comes on for
approximately 2 seconds and then goes off
automatically.
The indicator light comes on when the
overdrive off switch on the selector lever is
turned on. Overdrive will not operate even
when the automatic transmission is in the
"OD" position, unless engine speed is
excessive.