See also:

Washer Fluid
Washer Fluid When windshield washer fluid is needed, be sure to read the manufacturer's instructions before use. If operating the vehicle in an area where the temperature may fall below freezing, ...

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 ...

Services Not Included in Roadside Service
Impound towing caused by violation of any laws. Legal fines. Mounting, dismounting, or changing of snow tires, chains, or other traction devices. Towing or services for vehicles driven on ...