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:
Rear Wiper Blade Replacement
1. Lift the wiper blade assembly up and out of the park rest position.
2. Pull the wiper blade assembly away from the backglass. The backglass wiper
blade will not lock in a vertical position, so ...
Rear Vision Camera
Rear Camera Options: Press to display options available.
The available options are:
Video: Press to turn on or off.
Symbols: Press to turn on or off.
Guiding Lines: Press to turn on or off.
For ...
Vehicle Messages
Messages displayed on the DIC indicate the status of the vehicle or some action
may be needed to correct a condition. Multiple messages may appear one after another.
The messages that do not requir ...