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:
Rear Window Wiper/Washer
The rear wiper control is located on the turn and lane-change lever.
To turn the rear wiper on, slide the lever to a wiper position.
(Off): Turns the wiper off.
(Rear Wiper Delay): Turns on the
...
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 v ...
Filling a Portable Fuel Container
WARNING
Never fill a portable fuel container while it is in the vehicle. Static electricity
discharge from the container can ignite the fuel vapor. You can be badly burned
and the vehicle da ...