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:
Washer Fluid Messages
WASHER FLUID LOW ADD FLUID
This message displays when the windshield washer fluid is low. Fill the windshield
washer fluid reservoir as soon as possible. See Engine Compartment Overview ...
Guidelines
The RVC system has a guideline overlay that can help the driver align the vehicle
when backing into a parking spot.
To turn the guidelines on or off:
1. Make sure that URPA has not been disabled.
...
Reporting Safety Defects
to General Motors
In addition to notifying NHTSA
(or Transport Canada) in a situation
like this, notify General Motors.
Call 1-800-458-8006, or write:
Cadillac Customer
Assistance Center
Cadillac Motor Car Divi ...