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:
Fuel E85 (85% Ethanol)
Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded
gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol)
. For all other vehicles, ...
XM Messages
XL (Explicit Language
Channels): These channels, or any
others, can be blocked by request,
by calling 1-800-929-2100 in the
U.S., and 1-877-438-9677 in
Canada.
XM Updating: The encryption c ...
DIC Warnings and Messages
Messages are displayed on the DIC to notify the
driver that the status of the vehicle has changed
and that some action may be needed to correct the
condition. Multiple messages may appear one
afte ...
