Buick LaCrosse: How the System Works - Side Blind Zone Alert (SBZA) - Object Detection Systems - Driving and Operating - Buick LaCrosse Owners ManualBuick LaCrosse: How the System Works

When the vehicle is started, both

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 than 32 km/h (20 mph), SBZA displays may come on when a vehicle you have passed remains in or drops back into the detection zone.

SBZA can be disabled through vehicle personalization. See Vehicle Personalization for more information. If the SBZA is disabled by the driver, the SBZA mirror displays will not light up during normal driving.

    SBZA Detection Zones
    The SBZA sensor covers a zone of approximately one lane over from both sides of the vehicle, or 3.5m(11 ft). This zone starts at each side mirror and goes back approximately 5.0 m(16 ft). Th ...

    When the System Does Not Seem to Work Properly
    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 mi ...

    See also:

    Safety systems
    Display messages Possible causes/consequences and •► Solutions Currently Unavailable See Operator's Manual Risk of accident ABS, ESP®, BAS, PRE-SAFE®, the HOLD func ...

    Hazard Warning Flashers
    The Hazard Warning flasher switch is located on the instrument panel, below the radio. Press the switch to turn on the Hazard Warning flasher. When the switch is activated, all directional tu ...

    Automatic light off system (if equipped)
    Vehicles without a smart key system ●When the light switch is in : The headlights and tail lights turn off 30 seconds after the engine switch is turned to the “ACC” or “LOCK” pos ...