One problem related to horn assembly has been reported for the 2007 Buick Lacrosse. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Buick Lacrosse based on all problems reported for the 2007 Lacrosse.
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.