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:
Passenger Airbag Status Indicator
The vehicle has the passenger sensing system.
See Passenger Sensing System for
important safety information. The overhead console has
a passenger airbag status indicator.
When the vehicle is s ...
Ride & Handling
Unfortunately, the ride is another area where the Super looks better on paper
than the other Lucerne trim levels, but in some ways performs worse. The CXL's
suspension tuning is firmer than that o ...
Rear Door Security Locks
Rear door security locks prevent passengers from
opening the rear doors from the inside.
The rear door security locks
are located on the inside
edge of each rear door.
The rear doors must be ...