OnStar Services

See also:

Checking Coolant
The engine coolant recovery tank is in the engine compartment on the passenger’s side of the vehicle. The cap has this symbol on it. The vehicle must be on a level surface. When your engine ...

Climate Controls
A. Fan Control B. Temperature Control C. Air Delivery Mode Control D. Air Recirculation E. Air Conditioning F. Rear Window Defogger This system allows the driver and passenger to control t ...

Vehicle Data Recording and Privacy
This GM vehicle has a number of sophisticated computers that record information about the vehicle’s performance and how it is driven. For example, the vehicle uses computer modules to monitor and c ...