Security Light

The immobilizer light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off.
If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation on page 2‑14 for more information.
See also:
Overview
For vehicles equipped with the MyLink® or IntelliLink® infotainment system, see
the separate MyLink/ IntelliLink Features and Functions Guide for more information.
Keeping your eyes on the road ...
Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors.
Call 1-800-GMC-8782 (1-800-462-8782), or write:
GMC Customer Assistance Center
P.O. Box ...
Fast Idle System
If the vehicle has this feature it is available only with cruise control.
The manual fast idle switch is operated using the cruise control buttons located on the left hand side of the steering wheel. ...





