Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Turn Signals When Towing a Trailer
The turn signal indicators on the instrument panel flash whenever signaling
a turn or lane change.
Properly hooked up, the trailer lamps also flash, telling other drivers the
vehicle is turning, ...
Tire Rotation and Required Services Every 12 000 km/ 7,500 mi
Rotate the tires, if recommended for the vehicle, and perform the following services.
See Tire Rotation .
Check engine oil level and oil life percentage. If needed, change engine
oil an ...
Playing a CD
Selecting a CD Track
Tracks can be selected using the
seek buttons, TUNE/TONE knob,
or MENU/SELECT knob.
To use the seek buttons:
Press to go to the start
of the current track, if more than ...