See also:

Noise Control System
The following information relates to compliance with federal noise emission standards for vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 4 536 kg (10,000 lbs). The noise control syste ...

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 ...

Returning the Seat to the Seating Position
To return the second row seat to its normal seating position: 1. Remove objects on the floor behind the second row seat or in the seat tracks on the floor. 2. Pull the seatback rearward until it is ...