Brake Master Cylinder Problems of Lexus ES

Lexus ES owners have reported 2 problems 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 Lexus ES based on all problems reported for the ES.

1 Brake Master Cylinder problem of the 2014 Lexus ES

Failure Date: 12/03/2025

Brakes suddenly failed in the middle of driving causing a major safety hazard. There was no warning. Went to the dealership and was diagnosed “brake - fluid accumulator: inspect and found code c1391, abnormal leaks in accumulator, recommend to replace brake booster, master cylinder and pump. The brake fluid accumulator is a part of the anti-lock brake system. The accumulator stores brake fluid under pressure from the abs pump and can instantly provide fluid under pressure to the brakes. ” it appears this issue is not an isolated incident and others with the same or similar year/model have had this issue. It is extremely dangerous that the brakes suddenly failed to function without warning. The brake pads and brake fluids were adequate and the vehicle was up-to-date on regular inspection and maintenance.

See all problems of the 2014 Lexus ES 🔎.

2 Brake Master Cylinder problem of the 2008 Lexus ES

Failure Date: 02/18/2013

Had to make a hard stop and the brake pedal faded badly. Pedal has become softer over time. Already had to pay to replace faulty designed rear pads and front discs. Lexus has a TSB on the squeaky rear pads but never let us know. It was a replace only if owner complained. 1 pad was badly worn, but the vehicle was out of warranty and Lexus would not do anything. With all the Toyota master cylinder issues under recall, I find it hard to believe our Es350 is not experiencing the same thing. Expensive fix that we cannot delay for safety sake. Engine is becoming noisy. Ticking sounds at times.

See all problems of the 2008 Lexus ES 🔎.


Other Common Service Brakes related problems of Lexus ES

Problem Category Number of Problems
Service Brakes problems
37
Brake Master Cylinder problems
2
Brakes Failed problems
1
Brake Disc Rotor problems
1
Abs Brake Fail problems
1


ES Service Bulletins
ES Defect Investigations