If No Steam is Coming from the Engine Compartment
If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle:
○ Climbs a long hill on a hot day.
○ Stops after high-speed driving.
○ Idles for long periods in traffic.
○ Tows a trailer.
If the overheat warning is displayed with no sign of steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest fan speed. Open
the windows as necessary.
3. In heavy traffic, let the engine idle in N (Neutral) while stopped. If it is
safe to do so, pull off the road, shift to P (Park) or N (Neutral) and let the engine
idle.
If the temperature overheat gauge is no longer in the overheat zone or an overheat warning no longer displays, the vehicle can be driven. Continue to drive the vehicle slowly for about 10 minutes. Keep a safe vehicle distance from the vehicle in front. If the warning does not come back on, continue to drive normally.
If the warning continues, pull over, stop, and park the vehicle right away.
If there is no sign of steam, idle the engine for three minutes while parked. If the warning is still displayed, turn off the engine until it cools down.
See also:
Online Owner Center
Manage your vehicle (U.S.) at gmc.com. Click on “Owners,” then “Manage My GMC/Owners Login.”
Information and services customized for your specific vehicle — all in one convenient place.
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Calling for Assistance
When calling Roadside Assistance, have the following information ready:
• Your name, home address, and home telephone number
• Telephone number of your location
• Location of the vehicle
• ...
High Voltage Devices and Wiring
WARNING
Exposure to high voltage can cause shock, burns, and even death. The high voltage components in the vehicle can only be serviced by technicians with special training.
High voltage components ...





