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:
Rear Compartment Fuse Block
The rear compartment fuse block is located in the cargo area, on the driver
side of the vehicle behind the lower trim panel. To open, turn the latch with a
flat bladed tool and pull the trim pan ...
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. ...
Towing with a Stability Control System
When towing, the sound of the stability control system might be heard. The
system is reacting to the vehicle movement caused by the trailer, which mainly
occurs during cornering. This is normal when ...