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:
Playing the Radio
PWR (Power): Press this knob to turn the system
on and off.
VOL
(Volume): Turn this knob
clockwise
or counterclockwise to increase or to decrease
the volume.
DISPL (Display): When the ig ...
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling ...
OnStar®
If the vehicle is equipped with an active OnStar system, that system may also
record data in crash or near crash-like situations. The OnStar Terms and Conditions
provides information on data colle ...
