Engine Cooling System Messages
ENGINE HOT A/C (AIR CONDITIONING) OFF
This message displays when the engine coolant becomes hotter than the normal operating temperature.
See Engine Coolant Temperature Gauge. To avoid added strain on a hot engine, the air conditioning compressor automatically turns off. When the coolant temperature returns to normal, the air conditioning compressor turns back on.
You can continue to drive the vehicle.
If this message continues to appear, have the system repaired by your dealer as soon as possible to avoid damage to the engine.
ENGINE OVERHEATED IDLE ENGINE
Notice: If you drive the vehicle
while the engine is overheating,
severe engine damage may
occur. If an overheat warning
appears on the instrument panel
cluster and/or DIC, stop the
vehicle as soon as possible.
Do not increase the engine
speed above normal idling speed.
See Engine Overheating for more information.
This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. If the message does not clear in a few minutes or if the overheat light stays on, shut the vehicle off and have it serviced before driving again.
See Engine Coolant Temperature Warning Light.
See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency.
See also:
Retained Accessory Power (RAP)
The following vehicle accessories can be used for up to 10 minutes after the
engine is turned off:
Audio System
Power Windows
OnStar System (if equipped)
Sunroof (if equipped)
These fea ...
CD/DVD Player
The infotainment system's CD/DVD
player can play audio discs and
MP3 discs.
Discs that are 8 cm (3 in) in
diameter will not work in the
CD/DVD player.
The CD/DVD player does not
support th ...
Steering Wheel Controls
Use these controls, if equipped, to make audio adjustments at the steering
wheel.
or : Press to select the next
favorite radio station or next CD, DVD, if equipped, or MP3 track.
Press to ...






