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:
Battery Voltage
This display shows the current
battery voltage. The vehicle's
charging system regulates voltage
based on the state of the battery.
The battery voltage may fluctuate
when viewing this informat ...
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 o ...
Dolly Towing (Front-Wheel—Drive Vehicles)
To tow the vehicle from the front with the rear wheels on the ground, do the
following:
1. Put the front wheels on a dolly.
2. Move the shift lever to P (Park).
See Shifting Into Park.
3. ...