Engine Checks Before; Operating - Chevrolet Low Cab Forward 2016 Manual

168 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.

Engine Checks Before

Operating

Checks Before Operating
Allow the engine to warm up before
placing the engine under heavy load
driving. While the engine is warming
up under light load, the following
checks should be made:
1. Observe the red engine oil
pressure warning light. The
light should go out when the
engine is running. If it stays on,
shut the engine off and find the
cause.
2. Look at the engine coolant
temperature gauge. If the
gauge reaches the H (HOT)
area, stop the engine and find
the cause of the overheating.
3. Check that the battery warning
light has gone out. The light
should go off and stay off at
normal idle speeds. If the light
does not go out or comes on
during normal operation, have
the charging system checked.