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:
Navigation
OnStar navigation requires the Directions and Connections service plan.
Push to receive directions or have them sent to the vehicle navigation
screen. Destinations can also be forwarded to the veh ...
Danger, Warnings, and Cautions
Warning messages found on vehicle
labels and in this manual describe
hazards and what to do to avoid or
reduce them.
Danger indicates a hazard with a
high level of risk which will result in
...
Safety System Check
Now and then, check that the safety belt reminder light, safety belts,
buckles, latch plates, retractors, and anchorages are all working properly.
Look for any other loose or damaged safety belt sys ...