Theft-Deterrent Feature
TheftLock® is designed to discourage theft of the vehicle's radio by learning a portion of the Vehicle Identification Number (VIN).
The radio does not operate if it is stolen or moved to a different vehicle.
See also:
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 ...
Parental Control
The RSE system may have a Parental Control feature, depending on which radio the vehicle has. To start Parental Control, press and hold the radio power button for more than two seconds to stop all sys ...
Voltmeter Gauge
When the engine is not running, but the ignition is turned on, this gauge shows the battery's state of charge in DC volts.
When the engine is running, this gauge shows the condition of the charging ...