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:
Certification Label
Label Example
A vehicle-specific Certification/ Tire label is attached to the driver side
center pillar (B-pillar).
The label shows the size of the vehicle's original tires and the inflatio ...
Radio Message
Locked: Displays when the
TheftLock® system has locked up
the infotainment system. Take the
vehicle to your dealer for service.
If any error occurs repeatedly or if
an error cannot be correct ...
Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
- Always use e ...