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 
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Advisor can run a check.
See also:
Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi). See Maintenance Schedule
.
Tires are rotated to achieve a uniform wear for all tires. The first rotation
is the most important.
Any time ...
DVD Menu Options
Options: Press to view the menu option screen buttons. Menu options are available
when they are highlighted. Some menu options are only available when the DVD is
not playing.
Cursor: Press to acc ...
Mobile Apps
Mobile apps are available for download through iTunes® to then access the
iPhone® App Store and Google™ Marketplace for Android™. Search for the apps to
download. The apps are free of charge; howeve ...