One problem related to brake light on has been reported for the 2005 Buick Lesabre. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Buick Lesabre based on all problems reported for the 2005 Lesabre.
The contact owns a 2005 Buick Lesabre. The contact stated that while driving 25 mph, the brake light warning indicator illuminated. The vehicle was taken to the dealer for diagnostic testing and the mechanic stated that the master cylinder had to be replaced. The vehicle was not repaired. The manufacturer was notified. The failure mileage was 27,059. The current mileage was 27,090.