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:
Consistency of Readings
Always check the fluid level at least twice using
the procedure described previously. Consistency
(repeatable readings) is important to maintaining
proper fluid level. If inconsistent readings
per ...
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 system s ...
Sunroof
Sunroof
On vehicles with a sunroof, the
switch is located on the overhead
console.
The sunroof only operates when the ignition is in ON/RUN or ACC/ACCESSORY, or
in Retained Accessory Power ( ...