Child Restraint Systems
(A) Rear&-Facing Infant Seat
A rear-facing infant seat (A) provides restraint with the seating surface against the back of the infant.
The harness system holds the infant in place and, in a crash, acts to keep the infant positioned in the restraint.
(B) Forward-Facing Child Seat
A forward-facing child seat (B) provides restraint for the child's body with the harness.
(C) Booster Seats
A booster seat (C) is a child restraint designed to improve the fit of the vehicle's safety belt system. A booster seat can also help a child to see out the window.
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 ...
Infotainment Control Buttons
The buttons on the faceplate are used to start primary functions while using
the infotainment system.
VOL/ (Volume/Power):
1. Press to turn the system on and off.
2. Turn to adjust the volume.
...
Interior
The Sierra showcases two different interior designs. Work Truck and SLE
models are more utility-minded, with large controls and door handles that can be
operated while wearing gloves. The SLT offe ...