See also:

What to Use
WARNING Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning syste ...

Instrument Panel Illumination Control
The instrument panel brightness knob is located on the instrument panel to the left of the steering column. (Instrument Panel Brightness): Push the knob in all the way until it extends out and the ...

Engine Overheating
If the vehicle has the Duramax® Diesel engine, see the Duramax Diesel Supplement for more information. The vehicle has several indicators to warn of engine overheating. There is a coolant temperatu ...