See also:

Roof Rack System
The roof rack cross rails can be locked in four positions along the roof rack side rails. Lift the lever to release and move the cross rail. Push the lever down to completely engage into the side ...

Cooling System
If the vehicle has the Duramax® Diesel engine, see the Duramax® Diesel Supplement for more information. The cooling system allows the engine to maintain the correct working temperature. 5.3 L En ...

Manual Liftgate Operation
Unlock the vehicle before opening the liftgate. Press the touch pad located in the handle of the liftgate, above the license plate, and lift up to open. Do not press the touch pad while closing the ...