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:
Weatherstrips
Apply silicone grease on
weatherstrips to make them last
longer, seal better, and not stick or
squeak. See Recommended Fluids
and Lubricants. ...
Auto Rear Defog
This will allow you to turn the auto rear defog on or off.
Press the MENU/SELECT knob when Auto Rear Defog is highlighted to open the
menu.
Turn the knob to highlight On or Off. Press the knob ...
Tires
Every new GM vehicle has high-quality tires made by a leading tire manufacturer.
See the warranty manual for information regarding the tire warranty and where to
get service. For additional inform ...