There are 5 owner-reported brakes complaints for the 2005 Lexus RXin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
An AutoZone, Durlast brand brake master cylinder failed in less than one year. The piston in the master cylinder dislodged, preventing proper braking in at least two of the four disc brake calipers. The Duralast master cylinder has been retained for inspection. The safety of the driver, passengers, other motorists and pedestrians were placed at risk due to the malfunction of the shoddily manufactured brake component. Braking distance and stopping efficiency were adversely affected. The problem was confirmed by the automobile repair center. The manufacturer has, so far, failed to contact me about the defective brake component. No warning lamps or messages were associated with the master cylinder failure.
The contact owns a 2005 Lexus RX330. The contact stated while driving at approximately 45 MPH, the brake pedal was depressed but the vehicle was slow to respond. There were no warning lights illuminated. The vehicle was taken to an independent mechanic, who informed the contact that the Duralast brake master cylinder was inoperable. The contact was informed that the piston in the brake master cylinder had become dislodged, causing the braking system to become less efficient. The mechanic replaced the part. The local dealer was not contacted. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 210,000.
PULLING IN TO A PARKING SLOT AT DENTAL OFFICE, WITH MY FOOT ON THE BRAKE, THE CAR SUDDENLY REVVED AND ACCELERATED FORWARD AT A HIGH SPEED. WITH MY FOOT STILL ON THE BRAKE, THE CAR DID NOT STOP UNTIL HITTING THE ROCK WALL SIDE OF THE BUILDING. *TR
BRAKE PEDAL GOES SOFT WHILE HOLDING BRAKES ON AT A STOP. THE CAR WILL START TO ROLL FORWARD UNLESS MORE BRAKE PEDAL PRESSURE IS APPLIED. BRAKE PEDAL GOES ALMOST TO THE FLOOR. PUMPING THE BRAKES RESTORES PRESSURE. MY SHOP BLED THE BRAKES TWICE AND FOUND NO AIR IN THE SYSTEM. BLEEDING DID NOT CORRECT THE ISSUE. THEY SAID THERE IS A PROBLEM WITH THE MASTER CYLINDER AND IT NEEDS TO BE REPLACED... *TR
IN 2005 I BOUGHT THE LEXUS 400 HYBRID. I IMMEDIATELY DETECTED A PROBLEM WITH THE BRAKES - THERE WAS A HESITATION WHEN DEPRESSED AND THEN A SECOND OR TWO IT WOULD ENGAGE. THE DEALER TOLD ME THAT I NEEDED TO "GET USED TO HYBRID DRIVING." WHEN I BROUGHT IT IN FOR SERVICE IN MARCH OF 2006 I AGAIN TOLD THE DEALER THAT THE BREAKS WERE NOT RIGHT. THEY DID THEIR ASSESSMENT AND TOLD ME THAT THIS IS THE WAY IT IS. NOW HEARING ALL THE PROBLEMS WITH TOYOTA AND LEXUS I THINK YOU SHOULD BE AWARE OF THIS. I RECENTLY WROTE TO LEXUS AND THEY IMMEDIATELY BROUGHT MY CAR IN AND ARE KEEPING IT FOR FURTHER INVESTIGATION. I DO NOT KNOW WHAT THEY WILL FIND OR WHAT THEY WILL ULTIMATELY TELL ME. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026