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:
Easy Exit Positions
This feature can move the driver seat rearward and the power steering column
up and forward to allow extra room to exit the vehicle.
: Press to recall the easy exit positions.
The vehicle must be ...
Driving Impressions
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XM Satellite Radio Service
XM is a satellite radio service based in the 48 contiguous United States and
10 Canadian provinces. XM Satellite Radio has a wide variety of programming and
commercial-free music, coast to coast, an ...