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:
Ending a Call
Press to end a call. ...
Using the Navigation Audio System to Control a USB Storage Device or iPod®
The navigation audio system can control a USB storage device or an iPod by using
the radio touch screens and steering wheel controls.
1. Press AUX and then the USB button.
2. Press the center sc ...
STS adds direct-injection V-6
For 2008, STS will be the first GM vehicle equipped with a new 3.6-liter
direct-injected V-6 engine. The new base powerplant, with 298 horsepower (222
kW), delivers 40 more horsepower; and torque ...