Climate Control Systems

See also:

Customer Assistance Offices (U.S. and Canada)
GMC encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail GMC, the letter should be addressed to: United States GMC Customer Assistance ...

Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. When the Light Is O ...

Power Liftgate 3/4 Mode
To program the liftgate opening height: 1. Turn the liftgate switch to either the MAX , or the 3/4 mode position and power open the liftgate. 2. Stop the liftgate movement at the desired height by ...