See also:

Roadside Assistance and OnStar
If you have an active OnStar subscription, press the Q button and the current GPS location will be sent to an OnStar Advisor who will assess your problem, contact Roadside Assistance, and relay y ...

Fuel System Messages
FUEL LEVEL LOW This message displays when the vehicle is low on fuel. Refuel as soon as possible. TIGHTEN GAS CAP This message displays when the fuel cap is not on tight. Tighten the fuel c ...

How to Add Coolant to the Coolant Surge Tank
Notice: This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged. If no problem is found, check to see if cool ...