Unable to Connect to OnStar Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push 
to try the
call again or try again after driving a
few miles into another cellular area.
See also:
Magnetic Ride Control
The V-Series reaches elite levels of road-holding performance, but also
maintains the poise of a luxury car in "regular" driving conditions. The
technical enabler of that dual-mode drivi ...
Battery Load Management
The vehicle has Electric Power Management (EPM) that estimates the battery's
temperature and state of charge. It then adjusts the voltage for best
performance and extended life of the battery.
Wh ...
Theft-Deterrent Feature
The theft-deterrent feature works by learning a portion of the Vehicle
Identification Number (VIN) to the infotainment system.
The infotainment system does not operate if it is stolen or moved to ...