What to Use

To determine what kind of fluid to use, see Recommended Fluids and Lubricants  . Always use the proper fluid. Notice: Use of the incorrect fluid may damage the vehicle and the damages may not b ...

What to Use

When windshield washer fluid needs to be added, be sure to read the manufacturer's instructions before use. Use a fluid that has sufficient protection against freezing in an area where the tempe ...

See also:

Overheated Engine Protection Operating Mode
If an overheated engine condition exists and the ENGINE POWER IS REDUCED message is displayed, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In ...

Control of a Vehicle
Braking, steering, and accelerating are important factors in helping to control a vehicle while driving. ...

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 ...