Seat Adjustment
See also:
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 r ...
Rear Window Lockout
The rear window lockout feature prevents the rear passenger windows from operating, except from the driver position.
Press to activate the rear window lockout switch. The LED light comes on when a ...
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 ...





