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:
Receiving a Call
When an incoming call is received,
the audio system mutes and a ring
tone is heard in the vehicle.
• Press to answer the call.
• Press to ignore a call. ...
When to Check and Change Automatic
Transmission Fluid
A good time to check the automatic transmission fluid
level is when the engine oil is changed.
Change the fluid and filter at the intervals listed in
Scheduled Maintenance and be sure to
use th ...
Cooling System
The cooling system allows the engine to maintain the correct working temperature.
When it is safe to lift the hood:
2.0 L L4 Engine
A. Electric Engine Cooling Fans
B. Coolant Surge Tank and Pr ...