Buick Lacrosse owners have reported 3 problems related to horn assembly (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Buick Lacrosse based on all problems reported for the Lacrosse.
Door locks will not operate with fob remote passenger rear door will not lock/ unlock at all , other doors may or may not lock/unlock when put in drive or park. Fob will sound horn flash lights.
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The contact owns a 2007 Buick Lacrosse. While the vehicle was parked and unoccupied, the emergency horn sounded unintendedly and black smoke emitted from underneath the vehicle. When the contact approached the vehicle, he began to inspect underneath the hood area and noticed the fuse box and wires were burnt severely. There were no flames present. The vehicle was towed to an authorized dealer, who stated the electrical harness would need to be replaced. The vehicle was in the process of being repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 45,000.
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Multiple times since purchase air bag indicator has either blinked, has been constantly on or hasn'¿¿t been on at all. Instrument panel display, mileage indicator, temperature display, trip indicator hasn'¿¿t worked on occasion, radio and/or interior temperature display doesn'¿¿t come on until you drive for five to forty five minutes. Door locks have actuated either up or down while driving. Remote door locks either don¿t work at all or one or more does, one or more doesn¿t work, when manually using a key security system has activated thus sounding the horn. Many of these items have been discussed with my dealer and we were told by them that gm is aware of the problem but there isn'¿¿t a fix at this time.
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all problems of the 2009 Buick Lacrosse
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