See also:

Safety Belt Care
Keep belts clean and dry. WARNING! Do not bleach or dye safety belts. It may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only wit ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Headlamp Washer
For vehicles with headlamp washers, they are located to the side of the headlamps. The headlamps must be on in order to use the headlamp washers. If the headlamps are not on, only the windshiel ...