Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably service General Motors cars and trucks.
Each bulletin contains instructions to assist in the diagnosis and service of the vehicle.
See also:
Horn
Press on the steering wheel pad to sound the horn. ...
Ignition Positions
(Key Access)
The ignition switch can be turned to
four different positions.
To shift out of P (Park), the ignition
switch must be in ON/RUN or
ACC/ACCESSORY and the brake
pedal must be applied.
Notice: ...
Using Voice Commands During a Planned Route
Cancel Route
1. Push . System responds: “OnStar
ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel
route directions to your destination?”
2. Say “Yes.” System re ...