Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Resuming a Set Speed
If the cruise control is set at a desired speed and then the brakes are applied,
the cruise control is disengaged without erasing the set speed from memory.
Once the vehicle speed reaches about 40 ...
Sound
Press CONFIG to enter the configure menu options, then press CONFIG again, repeatedly
until Sound is selected or press the Sound screen button to make speaker and DSP
(Digital Signal Processing) a ...
Ignition Transmission
Lock Check
While parked, and with the parking
brake set, try to turn the ignition to
LOCK/OFF in each shift lever
position.
- The ignition should turn to
LOCK/OFF only when the shift
lever is in P (Pa ...