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:
When to Check Lubricant
It is not necessary to regularly check rear axle fluid unless there is a leak
suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have
it inspected and repaired.
All ax ...
Engine Cooling System Messages
Notice: If you drive the vehicle while the engine is overheating, severe engine
damage may occur. If an overheat warning appears on the instrument panel cluster
and/or DIC, stop the vehicle as soo ...
Fuel Gauge
Metric
English
When the ignition is on, the fuel gauge indicates about how much fuel is
left in the tank.
An arrow on the fuel gauge indicates the side of the vehicle the fuel door
...