OnStar Services

See also:

Manual Operation
(Fan Control): Press these buttons to increase or decrease the fan speed. Pressing either fan button while in automatic control places the fan under manual control. The fan setting remains displayed ...

Skidding
There are three types of skids that correspond to the vehicle's three control systems: ○ Braking Skid — wheels are not rolling. ○ Steering or Cornering Skid — too much speed or ...

Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine and/or an Allison Transmission, see the maintenance schedule section in the DURAMAX® Diesel ...