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Byline: JONATHAN WONG
With the Enclave crossover stealing the headlines at Buick, it might be easy to overlook the 2008 Lucerne, which lands in dealerships this month. In addition to the 292-hp Super trim that arrives next spring, Buick adds standard satellite radio and two new optional safety features to its full-size sedan: side blind-zone alert and a lane-departure warning system, both also found on the 2008 Cadillac STS ("Bling and Bang,'' AW, June 18). To get firsthand experience with the new technologies, we drove a Lucerne CXL equipped with the optional upgrades for a weeklong evaluation.
Unlike competing lane-departure-warning systems, Buick's Magna-sourced unit lets drivers know when the interior camera, mounted behind the rearview mirror, is operational and detecting lane markings with an illuminated green icon on the instrument cluster. To alert the driver to lane departures, the icon turns amber and is accompanied by an audio warning at speeds at or more than 35 mph. Warnings do not trigger when a turn signal is used or during sudden maneuvers.
The side blind-zone alert uses radar sensors behind the rear fascia to monitor blind spots. When a vehicle enters the area, a warning lights up on the corresponding outer sideview mirror. If a turn signal is activated and a vehicle is detected in the blind spot, the image flashes. To raise the system's credibility, the sensors ignore parked cars, rapidly passing vehicles and pedestrians.
Both systems worked well on our test drives. The lane-departure system wasn't overly sensitive like those in Infiniti vehicles, and we found the cluster icon handy for knowing when the system was ready to assist. As for the side blind-zone alert, it worked as advertised by not picking up on fast passing vehicles and stationary objects, but it still didn't erase the urge to ...