See also:

Battery
If the vehicle is a hybrid, see the hybrid supplement for more information. Refer to the replacement number on the original battery label when a new battery is needed. See Engine Compartment Overvi ...

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 ...

If the On Indicator Is Lit for a Child Restraint
If a child restraint has been installed and the on indicator is lit: 1. Turn the vehicle off. 2. Remove the child restraint from the vehicle. 3. Remove any additional items from the seat such ...