OnStar Services
See also:
Leaving After Parking on a Hill
1. Apply and hold the brake pedal
while you:
1.1. Start the engine.
1.2. Shift into a gear.
1.3. Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is
...
Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...
PRESS BRAKE TO START ENGINE (AUTOMATIC TRANSMISSION ONLY)
If the vehicle has the keyless
access system, this message
displays if you try to start the engine
without having the brake pressed.
The brake needs to be pressed
when starting the engine. Se ...






