Download 2009 Buick Lucerne Owner Manual

How the System Works
SBZA can be disabled through the Driver Information
Center (DIC). See Driver Information Center (DIC)
on page 3-49 for more information. If the SBZA
is disabled by the driver, the SBZA mirror displays will
not light up during normal driving.
When the System Does Not Seem To Work
Properly
Left Side Mirror Display
Right Side Mirror
Display
When the vehicle is started, both outside mirror displays
will briefly come on to indicate that the system is
operating. While driving forward, the left or right side
mirror SBZA display will light up if a vehicle is detected
in that blind zone. If you activate a turn signal and a
vehicle has been detected on the same side, the SBZA
display will flash to give you extra warning not to
change lanes.
SBZA displays do not come on while the vehicle is
approaching or passing other vehicles. At speeds greater
then 20 mph (32 km/h), SBZA displays may come on
when a vehicle you have passed remains in or drops
back into the detection zone.
2-42
Occasional missed alerts can occur under normal
circumstances and will increase in wet conditions.
The system does not need to be serviced due to an
occasional missed alert. The number of missed
alerts will increase with increased rainfall or road spray.
If the SBZA displays do not light up when the system
is on and vehicles are in the blind zone, the system may
need service. Take the vehicle to your dealer/retailer.
SBZA is designed to ignore stationary objects; however,
the system may occasionally light up due to guard
rails, signs, trees, shrubs, and other stationary objects.
This is normal system operation, the vehicle does
not need service.