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:
Retained Accessory Power (RAP)
These accessories can be used after the engine is turned off:
- Audio system (up to 10 minutes or driver door is opened).
- Power windows, sunroof (if equipped), and power outlets (up to 10 minu ...
Light weight, power-dense engines
There are many reasons for the ATS’s impressive driving dynamics, though it
begins with light weight. Cadillac has boasted since the car’s reveal six months
ago that at 3,315 lbs it’s the lighte ...
SERVICE BRAKE SYSTEM
This message displays, while the
ignition is on, when the brake fluid
level is low. The brake system
warning light on the instrument
panel cluster also comes on.
See Brake System Warning Ligh ...