Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil.
The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.
Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
See also:
Traction Control System (TCS)/StabiliTrak® Light
The StabiliTrak or Traction Control System (TCS) indicator/warning light
comes on briefly when the engine is started.
If the light does not come on, have the vehicle serviced by your dealer.
...
GM Mobility Reimbursement Program (U.S. and Canada)
This program is available to qualified applicants for cost reimbursement of
eligible aftermarket adaptive equipment required for the vehicle, such as hand
controls or a wheelchair/ scooter lift ...
Programming the Power Windows
If the vehicle battery has been
recharged, disconnected or not
working, the front power windows
will need to be reprogrammed for
the express-up feature to work.
Before reprogramming, replace ...