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:
Objects Detected by Both the Front and Rear Sensors
In general, if objects are detected at the same time near both the front and
rear bumpers while backing up, the beeps only sound to indicate that objects
are close to the rear bumper.
However, if ...
Tire Sealant
Read and follow the safe handling instructions on the label adhered to the sealant
canister.
Check the tire sealant expiration date on the sealant canister. The sealant canister
should be replace ...
Control Buttons
The buttons used to control the XM radio are:
RADIO/BAND: Press to turn the radio on and choose between AM, FM, and XM, if
equipped.
SEEK / SEEK: Press to go to the previous or next
channel.
...