Engine Oil Additives / Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M 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:
Transmission Messages
SERVICE TRANSMISSION
This message displays if there is a
problem with the transmission. See
your dealer.
SHIFT TO PARK
This message displays when the
transmission needs to be shifted to
P ( ...
Ride Control System Messages
ALL WHEEL DRIVE OFF
This message displays when the
All-Wheel Drive (AWD) System has
been turned off. See All-Wheel
Drive.
SERVICE ALL WHEEL DRIVE
SYSTEM
This message displays when there
i ...
Locking Rear Axle
Your vehicle may have this feature. A locking rear
axle can give you additional traction on snow, mud,
ice, sand or gravel. It works like a standard axle
most of the time, but when one of the rear ...