Buick Lacrosse owners have reported 1 problem related to brake master cylinder (under the service brakes 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.
3/28/took car to dealership as my brake pedal was appx. One inch from the floor when depressed while stopping car. Was told brake pads, calipers & brake fluid were all okay. I was advised to monitor. . . That "condition was due to brake pads wearing & when brake pads wear, the pedal will move further down because pads have to travel farther in to press against the rotors". 5/28/14:returned car to dealership as brake pedal was almost touching the floor when depressed. They determined that my master cylinder had failed. . . Was replaced.
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