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:
How OnStar Service Works
: This blue button connects you
to a specially
trained OnStar advisor to verify your account information
and to answer questions.
: Push this red emergency button to
get priority help
fro ...
Finding a Program Type (PTY) Station(RDS and XM™)
To select and find a desired PTY perform the
following:
1. Turn the P-TYPE knob to select a PTY.
2. Once the desired PTY displays, press the
SEEK TYPE button to select and go to the
PTY’s fir ...
Safety
In Insurance Institute for Highway Safety crash tests, the Lucerne rates
Good, the best possible score, in the frontal-offset test and Acceptable in the
side impact. Acceptable is, well, acceptabl ...