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:
Symbols
The vehicle has components and labels that use symbols instead of text. Symbols
are shown along with the text describing the operation or information relating to
a specific component, control, mes ...
Traction Control System (TCS)/StabiliTrak® Light
The Traction Control System (TCS)/ StabiliTrak Light comes on briefly when the engine is started.
If the light does not come on, have the vehicle serviced by the dealer.
If the system is working n ...
First Engine Oil Change After Every
240 000 km/150,000 Miles
• Engine cooling system drain, flush, and refill,
cooling system and cap pressure check, and
cleaning of outside of radiator and air conditioning
condenser (or every 5 years, whichever occurs ...