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:
How to Detect a Tamper Condition
If is pressed and the
horn
sounds, an attempted break-in
occurred while the system was
armed.
If the alarm has been activated, a
message will appear on the DIC.
See Anti-theft Alarm ...
Engine Air Cleaner/Filter
See Engine Compartment Overview for the location of the engine air cleaner/filter. ...
At Each Fuel Fill
Engine Oil Level Check
Check the engine oil level and add the proper
oil if necessary.
Notice: It is important to check your oil
regularly and keep it at the proper level.
Failure to keep your ...