The cooling system allows the engine to maintain the correct working temperature.

Warning
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.
Caution
Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner. Any repairs would not be covered by the vehicle warranty. Always use DEX-COOL (silicate-free) coolant in the vehicle.
Engine Air Cleaner/Filter
Engine CoolantRoadside Assistance Program
For U.S.-purchased vehicles, call 1-800-243-8872. (Text Telephone (TTY): 1-888-889-2438.)
For Canadian-purchased vehicles, call 1-800-268-6800.
Service is available 24 hours a day, 365 days a year.
Calling for Assistance
When calling Roadside Assistance, have the following information ready:
...
Fog Lamps
If equipped with fog lamps, they are controlled by the
band on the middle of the turn signal
lever.
To use the fog lamps, the ignition must be turned on and the low-beam headlamps
or parking lamps must be on.
Turn the band to to turn the fog
lamps on. The band automatically returns to ...
Insuring the Vehicle
Protect your investment in the GM vehicle with comprehensive and collision insurance
coverage. There are significant differences in the quality of coverage afforded
by various insurance policy terms.
Many insurance policies provide reduced protection to the GM vehicle by limiting
compensation ...