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:
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if ...
New Vehicle Break-In
Notice: The vehicle does not need an elaborate
break-in. But it will perform better in the long run if
you follow these guidelines:
• Do not drive at any one constant speed, fast or
slow, for ...
Power Door Locks
On vehicles with power door locks, the switches are
located on the front doors.
(Unlock): Press to unlock the
doors.
(Lock): Remove the key from the
ignition and press
to lock the doors. ...