OnStar Services

See also:

Brake Fluid
The brake master cylinder and, on manual transmission vehicles, the clutch hydraulic system use the same reservoir. See Engine Compartment Overview  for the location of the reservoir. The reser ...

3.6L V6 Engine
There is a coolant temperature gauge and a engine coolant temperature warning light on the instrument panel cluster that indicate an overheated engine condition. See Engine Coolant Tempera ...

Automatic Operation
The system automatically controls the fan speed, air delivery, air conditioning, and recirculation in order to heat or cool the vehicle to the desired temperature. When the AUTO indicator lig ...