Engine Overheating
The vehicle has an indicator to warn of engine overheating.
There is an engine coolant temperature warning light on the vehicle's instrument panel.
See Engine Coolant Temperature Gauge.
If the decision is made not to lift the hood when this warning appears, but instead get service help right away. See Roadside Service (U.S. and Canada) or Roadside Service (Mexico).
If the decision is made to lift the hood, make sure the vehicle is parked on a level surface.
Then check to see if the engine cooling fans are running. If the engine is overheating, both fans should be running. If they are not, do not continue to run the engine and have the vehicle serviced.
Notice: Engine damage from running the engine without coolant is not covered by the warranty.
Notice: If the engine catches fire because of being driven with no coolant, the vehicle can be badly damaged. The costly repairs would not be covered by the vehicle warranty.
See also:
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems.
It also checks the tire pressures, if the v ...
Tire Pressure
Tires need the correct amount of air pressure to operate effectively.
Notice: Neither tire underinflation nor overinflation is good.
Underinflated tires, or tires that do not have enough air, can ...
Passenger Side
The removal of the air filter/cleaner assembly and base is required for the
replacement of one of these bulbs:
1. Open the hood. See Hood.
A. Air Duct Clamp
B. Connector Lock
C. Sensor Co ...






