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:
Park Brake and P (Park) Mechanism Check
WARNING
When you are doing this check, the vehicle could begin to move. You or others
could be injured and property could be damaged. Make sure there is room in front
of the vehicle in case ...
Window Lockout
(Window Lockout): This feature
prevents the rear passenger
windows from operating, except
from the driver position.
Press to activate the rear window
lockout switch. The LED light comes
...
MRC, electric power steering and other advanced control systems
Supporting the ATS's new suspension designs are advanced damping, steering
and braking systems, including Magnetic Ride Control.
Magnetic Ride Control (MRC) is the heart of the FE3 Sport Suspensio ...