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 Engine Shown (4.3 L, 4.8 L, 6.0 L and, 6.2 L Engines Similar)
A. Coolant Surge Tank
B. Coolant Surge Tank Pressure Cap
C. Engine Cooling Fan (Out of View)
WARNING
An electric engine cooling fan can start even when the engine is not running. To avoid injury, always keep hands, clothing, and tools away from any engine cooling fan.
WARNING
Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned.
Do not run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine fire, and you could be burned. Get any leak fixed before you drive the vehicle.
Notice: Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner, at 50 000 km (30,000 mi) or 24 months, whichever occurs first. Any repairs would not be covered by the vehicle warranty.
Always use DEX-COOL (silicate-free) coolant in the vehicle.
See also:
When Should an Airbag Inflate?
Frontal airbags are designed to inflate in moderate to severe frontal or near-frontal
crashes to help reduce the potential for severe injuries mainly to the driver's
or right front passenger ...
XM™ Satellite Radio Service
XM Satellite Radio Service gives digital radio reception from coast to coast
in the 48 contiguous United States, and in Canada. Just as with FM, tall buildings
or hills can interfere with satellit ...
Park Tilt Mirrors
If the vehicle is equipped with memory mirrors, there is an option to have the
mirrors tilt down, when in R (Reverse), to more easily see the ground near the vehicle.
When the vehicle is shifted to ...





