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:
Tire and Loading Information Label
Label Example
A vehicle specific Tire and Loading Information label is attached to the vehicle's
center pillar (B-pillar). With the driver's door open, you will find the label attached
...
Driver Information Center (DIC) (Without DIC Buttons)
If your vehicle does not have DIC buttons, the information below explains the operation of this system.
The DIC has different displays which can be accessed by pressing the trip odometer reset stem l ...
Cleaning the RSE Overhead Console
When cleaning the RSE overhead console surface, use only a clean cloth dampened with clean water. ...