OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor. To change the OnStar PIN, call OnStar and provide the Advisor with the current number.
See also:
All Terrain chassis and suspension
Based on the chassis of the 2011 Sierra HD trucks, the All Terrain HD
features a fully boxed steel frame with exceptional strength and torsional
stiffness. It incorporates the production models' n ...
Driving Characteristics and Towing Tips
WARNING
The driver can lose control when pulling a trailer if the correct equipment is not used or the vehicle is not driven properly.
For example, if the trailer is too heavy, the brakes may not wo ...
Manual Seats
Manual Seats
A. Seat Adjustment Handle
B. Driver Seat Height Adjustment Lever
C. Seatback Lever
To adjust a manual seat:
1. Lift the handle (A) under the seat to unlock it.
2. Slide the seat ...