Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment on page 9‑112. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
Overview
The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck
capability combined with greater off-road versatility. It is highlighted by a
bold exterior design, enhanced all-terrain ...
Collision Alert
When your vehicle approaches another vehicle too rapidly, the red FCA display
will flash and sound several beeps. When this occurs, the brake system prepares
for driver braking to occur more rap ...
Remote Vehicle Start
With this feature the engine can be started from outside of the vehicle. ...