Once a Year
• Starter switch check. See Owner Checks and Services.
• Parking brake and automatic transmission P (Park) mechanism check. See Owner Checks and Services.
• Automatic transmission shiftlock control system check. See Owner Checks and Services.
• Ignition transmission lock check. See Owner Checks and Services.
• Engine cooling system and pressure cap pressure check. Radiator and air conditioning condenser outside cleaning. See Cooling System.
• Exhaust system and nearby heat shields inspection for loose or damaged components.
• Accelerator pedal check for damage, high effort, or binding. Replace if needed.
• If the vehicle has a Tire Sealant and Compressor Kit, check the sealant expiration date printed on the instruction label of the kit. See Tire Sealant and Compressor Kit.
See also:
Warning Lights, Gauges, and Indicators
Warning lights and gauges can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gauges could preve ...
Airbag Readiness Light
This light shows if there is an electrical problem. The system check includes the airbag sensor, the pretensioners, the airbag modules, the wiring, and the crash sensing and diagnostic module.
For mo ...
OnStar Overview
If equipped, this vehicle has a
comprehensive, in-vehicle system
that can connect to a live Advisor
for Emergency, Security, Navigation,
Connection, and Diagnostic
Services.
The OnStar sy ...