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 the vehicle is equipped with the Tire Pressure Monitoring System.
If a diagnostics check is needed between e-mails, push 
, and an Advisor can run a check.
See also:
Format
Radios that have the capability of playing MP3s can play.mp3 or .wma files that were recorded onto a CD-R or CD-RW disc. The files can be recorded with the following fixed bit rates: 32 kbps, 40 kbps, ...
Three-Way Calling
Three-way calling must be supported on the cell phone and enabled by the wireless service carrier.
1. While on a call, press .
2. Say “Three-way call.” 3. Use the dial or call command to dial th ...
The Inside
Here's where GM has really outdone itself in its new SUVs. Like the Tahoe,
the Yukon shows off one of the best interiors GM has ever mustered in a
mass-marketed vehicle. All the buttons are of abo ...