See also:

Calling for Service
When calling Roadside Service, have the following information ready: Your name, home address, and home telephone number. Telephone number of your location. Location of the vehicle. Model, ye ...

General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks: ...

Roof
Sunroof If the vehicle has a power sunroof it will only operate when the ignition is in ON/RUN or ACC/ACCESSORY, or when Retained Accessory Power (RAP) is active. See Ignition Positions ( ...