OnStar Services

See also:

Scheduling Service Appointments (U.S. and Canada)
When the vehicle requires warranty service, contact your dealer and request an appointment. By scheduling a service appointment and advising the service consultant of your transportation needs, your d ...

Tips and Troubleshooting Chart
Problem Recommended Action There is no power. The ignition might not be turned to ON/RUN or ACC/ ACCESSORY. The picture does not fill the screen. There are black bor ...

Manual Operation
(Fan Control): Press these buttons to increase or decrease the fan speed. Pressing either fan button while in automatic control places the fan under manual control. The fan setting remains displayed ...