See also:

Climate Control System (With Heater Only)
Climate Control System (With Heater Only) A. Fan Control B. Temperature Control C. Air Delivery Mode Control See Climate Control Systems (with Air Conditioning) on page 8‑1 or Climate Co ...

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 ...

Chemical Paint Spotting
Airborne pollutants can fall upon and attack painted vehicle surfaces causing blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface. ...