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:

See also:
Tire Sidewall Labeling
Useful information about a tire is molded into its
sidewall. The examples below show a typical
passenger vehicle tire and a compact spare tire
sidewall.
Passenger (P-Metric) Tire Example
(A) ...
Compass Messages
CAL
This message is displayed when the
compass needs to be calibrated.
See Compass.
– – –
Three dashes will be displayed if the
compass needs service. See your
dealer for service. ...
Courtesy Lamps
The courtesy lamps come on automatically when any door is opened and the dome
lamp is in the door position. ...
