See also:

Safety Belts
Refer to the following sections for important information on how to use safety belts properly. ► Safety Belts . ► How to Wear Safety Belts Properly . ► Lap-Shoulder Belt . ` ...

Checking Engine Oil
It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is ...

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 ...