Transmission Messages
ALL WHEEL DRIVE OFF
If your vehicle has the All-Wheel Drive (AWD) system, this message displays when there is a compact spare tire on the vehicle, when the Antilock Brake System (ABS) warning light comes on, or when the rear differential fluid is overheating.
This message turns off when the differential fluid cools.
The AWD system is disabled until the compact spare tire is replaced by a full-size tire. If the warning message is still on after putting on the full-size tire, you need to reset the warning message. To reset the warning message, turn the ignition off and then back on again after 30 seconds. If the message stays on, see your dealer right away.
See All-Wheel Drive on page 9‑27 for more information.
SERVICE ALL WHEEL DRIVE
If your vehicle has the All-Wheel Drive (AWD) system, this message displays if there is a problem with this system. If this message appears, stop as soon as possible and turn off the vehicle. Restart the vehicle after 30 seconds and check for the message on the DIC display.
If the message is still displayed or appears again when you begin driving, the AWD system needs service. See your dealer.
SERVICE TRANSMISSION
This message displays when there is a problem with the transmission.
See your dealer for service.
TRANSMISSION HOT IDLE ENGINE
Notice: If you drive the vehicle while the transmission fluid is overheating and the transmission temperature warning is displayed on the instrument panel cluster and/or DIC, you can damage the transmission. This could lead to costly repairs that would not be covered by the warranty. Do not drive the vehicle with overheated transmission fluid or while the transmission temperature warning is displayed.
This message displays and a chime sounds if the transmission fluid in the vehicle gets hot. Driving with the transmission fluid temperature high can cause damage to the vehicle.
Stop the vehicle and let it idle to allow the transmission to cool.
This message clears when the fluid temperature reaches a safe level.
See also:
Immobilizer Operation
This vehicle has PASS-Key® III+ (Personalized Automotive Security System) theft-deterrent system.
PASS-Key III+ is a passive theft-deterrent system.
The system is automatically armed when the key i ...
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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