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:
Rear Display
Press the Rear Display(s) screen button to allow the choice of sources for rear
display between front disc, rear aux, or usb, if connected. ...
Hill Start Assist (HSA)
Non-hybrid vehicles with StabiliTrak have a Hill Start Assist (HSA) feature,
which may be useful when the vehicle is stopped on a grade. This feature is designed
to prevent the vehicle from rollin ...
License Plate Lamp
To replace one of these bulbs:
1. Open the liftgate. See Liftgate for more information.
Passenger Side Shown, Driver Side
Similar
2. Push the left end of the lamp assembly towards the ri ...