2007 Lexus RX Brakes Problems

I am reporting a serious and potentially dangerous braking issue with my 2007 Lexus RX400h. The vehicle currently has approximately 126,296 miles. While driving, the vehicle emits a continuous and intermittent warning beeping sound. At the same time, the braking system becomes unreliable. The brake pedal becomes extremely difficult to press, requiring excessive force, and the vehicle does not respond consistently when braking. In addition, there are instances where the vehicle appears to brake unpredictably or inconsistently, which creates a significant safety hazard for myself, passengers, and other drivers on the road. Based on my research, this issue appears to be related to a known defect involving the ABS brake actuator assembly. Lexus previously issued a warranty enhancement program for this component due to internal malfunctions that affect brake pressure and system performance. However, this issue was not issued as a formal recall tied to VIN eligibility. Despite my vehicle being under 150,000 miles, I have been informed that I may be outside the time-based warranty window, and no active recall is listed for my VIN. This defect directly impacts the braking system, which is a critical safety component. Failures in the brake actuator can lead to improper brake pressure, reduced stopping ability, and increased risk of a crash. Given the safety implications and known history of this defect, I believe this issue warrants further investigation and potential recall consideration. I am submitting this complaint to request that the NHTSA review this matter for safety risk and determine whether broader action is necessary to protect consumers.

Hydraulic brake booster pump abs actuator has been on a service bulletin around 2015 with a definitive timetable. I have had numerous notifications with warning lights that are indicative of the booster pump failure for more than 10 years and every time I bring it to the Lexus dealer they said it is my battery. They replace the battery and reset the computer and it repeats itself over and over. My main concern as this should have been a recall and not a service bulletin; an abs brake failure is a significant defect with possible fatal outcome. The problem has been well documented with numerous Lexus and Toyota customers hybrid vehicles going back to 2005. My vehicle is 2007 Lexus RX 400h with 78,000 miles. I am afraid to drive the vehicle with the issue unresolved.

Electrical system malfunction began (to my best calculation & recollection) in summer 2021 with the first of four battery malfunctions in one year. Each time, AAA discovered low battery response and recommended battery replacement. This time around, battery was replaced about two weeks prior, due to battery failure/AAA reporting would not accept charge. THE NEW BATTERY FAILED (8/3) and the starter broke while attempting to charge. Mechanic repaired starter and battery accepted the charge. No problem, right? Wrong. This driver drove about 30 miles and while driving, the electrical system shut down altogether. With I believe ALL WARNING LIGHTS LIGHTING UP, extremely dangerous situation. NO BREAKING, NO STEERING, NO WARNING. Fortunately, it occurred in a suburban residential area as opposed to the highway. SECOND tow to my mechanic and now, after a full week, no diagnosis, though the car has been running in the shop. This is an intermittent problem. I suspect the alternator.

2007 lexus rx400h,,,couple week ago ,,,my sister drive this car on the highway,,,suddenly the check engine, ABS, traction control, VSE, ect light come on and the vehicle when brake will pull to right also brake grab immediately. Bring to the tech and get a code C1391 abnormal leak in accumulator,,,that mean replace the whole ABS unit assembly Bring to Lexus dealer on 9-30-2021 and still get the same code C1391 and pay $175.93 for diagnostic and cost repair $3,573 (This condition may be caused by a small internal brake fluid leak inside the brake actuator) Call lexus head quarter and turn out this is only basic warranty,,,,,no recall for safety,,,, because no one dead yet Research online turn out a lot of problem about this: (2006 - 2007 GS 430) (2007 - 2011 GS450H) (2008-2011 GS 460) (2006-2008 RX400H) (2007-2013 LS460) This only Lexus,,,,more about Toyota But LEXUS still ignore about this safy

Toyota and Lexus are aware of the fact that what is called break actuator assembly, part number 44050-48191 (for Toyota Highlander Hybrid 2006-2007, and new part number for Lexus RX400h 2006-2007) and 44510-48060 (old/original part number for RX400h 2006-2007) are faulty resulting in the break system failing creating an extremely dangerous situation. Toyota extended the warranty for the part, but this extended warranty does not cover all vehicles, as it is not a recall. (The extended warranty has a maximum 150K miles or 10years clause but this is beyond the point regardless.) The part and repair costs more then $3000 at a Toyota/Lexus dealer. Toyota/Lexus is not offering a recall to avoid paying for the large number of cars out there with this well known issue which essentially renders the cars not drivable, unless the owner pays out of pocket what is close to half the current value of the car, for a defective item that is failing consistently in all these cars. Toyota/Lexus should recall the part, rather than just offering an extended warranty. This is a very well known problem, for which people have complained (including in NHTSA) for years, which forced Toyota/Lexus extend the warranty, but this is not enough as it does not cover all vehicles that it should cover.

Brake actuator failed at 117000 miles. Verified by dealer and suggest replace brake actuator and pump assembly. No notification ever

Brake actuator failure reported by dealer because booster pump is running frequently. No info from Toyota and Toyota declined repair . Dealer indicates my vehicle is not under extended warranty. 117000 miles on my car.

CAR HAS BEEN MAKING A CLICKING NOISE DURING STOPS FOR A YEAR. I CHALKED IT UP TO SOMETHING UNIMPORTANT. ON 2/20/21, THE 'CHECK AVS,' 'CHECK ABS,' AND 'CHECK BRAKE SYSTEM' LIGHTS ALL CAME ON, AND CAR LURCHED WHILE BACKING OUT OF MY DRIVEWAY. I WAS DRIVING MY WIFE AND DAUGHTER AT THE TIME. BROUGHT LEXUS TO MY LOCAL MECHANIC ON 2/22/21. AFTER SEVERAL DAYS, MECHANIC RETURNED THE CAR TO ME, SAYING HE COULD HEAR THE CLICKING AND, ACCORDING TO HIS RESEARCH, IT COULD BE THE BRAKE ACTUATOR GIVEN LEXUS HAD DONE A WARRANTY EXTENSION ON THIS PART IN 2016. HE TOLD ME THIS REPAIR WOULD COST IN THE THOUSANDS OF DOLLARS, AND ADVISED ME TO CONTACT LEXUS. SPOKE WITH LEXUS BRAND MANAGER ON 2/25 WHO TOLD ME ABOUT WARRANTY EXTENSION ZLG FOR ACTUATORS IN 2016, AND TOLD ME THAT IN ORDER FOR LEXUS TO ASCERTAIN WHETHER OR NOT THE CAR WAS EXPERIENCING AN ACTUATOR FAILURE, IT MUST BE INSPECTED BY A LEXUS SERVICE CENTER. BECAUSE I WAS TOLD ABOUT THE SPECIFIC EXTENSION AND ASKED TO TAKE IT TO LEXUS TO DIAGNOSE THE ISSUE, I ASSUMED LEXUS WOULD COVER THE REPAIR COST. I TOOK THE CAR TO LEXUS SANTA MONICA ON 3/2/21 AND WAS NOTIFIED THAT THE PROBLEM WAS RELATED TO THE BRAKE ACTUATOR, AND THAT THE COST TO REPAIR WOULD BE $3000 PLUS TAX. I RELAYED TO LEXUS SM WHAT I WAS TOLD BY LEXUS CORPORATE, AND LEXUS SM TOLD ME THEY WOULD CALL LEXUS CORPORATE AND SEE WHAT THEY HAD TO SAY ABOUT WARRANTY EXTENSION 'ZLG.' ULTIMATELY, LEXUS WOULD NOT COVER COST BECAUSE THE PART WAS OUTSIDE THE EXTENDED WARRANTY. I SPOKE WITH ANOTHER LEXUS CASE MANAGER ABOUT WHY A WARRANTY EXTENSION WAS OFFERED AS OPPOSED TO A RECALL, AND HE SAID I SHOULD LODGE A COMPLAINT WITH NHTSA. I ALSO SPOKE WITH HIS SUPERVISOR, WHO SAID LEXUS WOULD NEVER PAY FOR A PART OUTSIDE A WARRANTY, EVEN A FAULTY PART GIVEN AN EXTENDED WARRANTY. NOBODY IN THE LEXUS CHAIN OF COMMAND CAN TELL ME IF THE CAR IS SAFE TO DRIVE. I WILL SUPPORT CLASS ACTION SUIT.

BRAKE ACTUATOR FAILURE HAS BEEN ADDED TO A BULLETIN FOR EXTENDED WARRANTY AND NOT A RECALL. THIS IS A COSTLY MALFUNCTION THAT TOYOTA IS AWARE OF AND THEY SHOULD TAKE CARE OF ALL VEHICLES AS NOT TO COMPROMISE BRAKING AND ACCIDENT AVOIDANCE.

"CHECK VSC" SYSTEM WITH ACCOMPANYING CONTINUOUS BEEP NOISE, BRAKES BECOME HARD TO PUSH/ACTIVATE. THIS STARTED A FEW WEEKS AGO, AND WOULD HAPPEN INTERMITTENTLY, AND PROGRESSIVELY LONGER IN THE DYSFUNCTIONAL BRAKES PHASE. I HAD AN EMPLOYEE AT AUTO ZONE CLEAR THE CODE 2 DAYS AGO, BUT THE PROBLEM STARTED AGAIN, INTERMITTENTLY UPON VEHICLE START, BUT WOULD GO AWAY SHORTLY, WITH NORMALLY RESPONSIVE BRAKES. THIS INTERMITTENT ISSUE OCCURS WHEN I AM DRIVING, THEREFORE THIS IS A SERIOUS ROAD HAZARD AS MY BRAKES BECOME SIGNIFICANTLY LESS RESPONSIVE WHEN THE PROBLEM OCCURS. IN OTHER WORDS, THIS OCCURS WHEN STATIONARY AND WHEN DRIVING, INTERMITTENTLY.

THE LIGHTS ALL CAME ON ABS SYSTEM CAME ON STABILIZER AIR BAG TOOK TO LEXUS THEY DIAGNOSED THE PROBLEM AS THE BRAKE ACTUATOR I RESEARCH AND FOUND THAT ON LEXUS CLUB THIS IS A BIG PROBLEM WITH MY YEAR AND OTHER YEARS THEY ACKNOWLEDGE THIS BY GIVING AN EXTENDED WARRANTY. BUT FALL SHORT TO ASSIST WITH AFTER. THERE IS MANY COMPLAINTS I RESEARCHED THERE IS ALSO A NOISE THAT IS RELATED TO THIS PROBLEM THE NOISE COMES FROM THE ACTUATOR, BUT BEING UNFAMILIAR WITH THE CAR NORMAL FEATURES I FAILED TO IDENTIFY THE PROBLEM I HAVE HEARD THIS NOISE FOR A VERY LONG TIME I HAVE ALWAYS FELT THIS PULSE BUT THOUGHT IT WAS NORMAL I OWNED THIS VEHICLE NOW FOR 5 YEARS. I THOUGHT THE NOISE WAS THE HYDRAULIC SYSTEM LOWING THE VEHICLE AIR DOWN LIKE MY NAVIGATOR DID BUT THAT WAS THE NOISE OF THE ACTUATOR GOING OUT. THE BRAKES ALWAYS FELT LIKE THEY HAD A DELAY OR HIT HARD LIKE A JERK JUST THOUGHT THIS WAS CAUSED BY SENSITIVITY. IT UPSETS ME THAT LEXUS IS AND HAS BEEN AWARE OF THIS PROBLEM AND NEVER INFORMED ME AND THE PROBLEM JUST GOT WORSE THE BRAKE SYSTEM IS SO VITAL WHY WOULD THEY NOT AFTER THEY REALIZED THIS IS A PROBLEM I HAD THE WARRANTY PROVIDER WHOM EXTENDED THIS WARRANTY ON THIS PART BUT NEITHER INFORMED ME EVEN THOUGH BOTH HAD MY CURRENT INFORMATION. ITS A PROBLEM THAT LEXUS AND ITS MOTHER TOYOTA KNOW OF AND FAILED TO MAKE THE PROBLEM RIGHT. IF THERE IS A PROBLEM AND THEY RECOGNIZE IT WHY NOT MAKE IT RIGHT! IS MY SAFETY NOT IMPORTANT TO LEXUS AND TOYOTA? #TOYOTA # LEXUS #ACTULATOR #SAFETY

THE VSC FAILURE, CHECK HYBRID SYSTEM AND ABS BREAK SYSTEM LIGHTS CAME ON WHILE DRIVING THE CAR ON THE STREET. ASIDE FROM BEING SCARY, IT WAS DIFFICULT TO DRIVE THE CAR AND THE BREAKING SYSTEM FELT SPONGY MAKING IT DIFFICULT TO STOP THE CAR. THE CAR IS NOT TURNING ON AND ALL THE LIGHTS ON THE DASH ARE ON. I REPLACED THE BATTERY. YET THE CAR DOES NOT TURN ON AND THE DASHBOARD LIGHTS STAY ON. THIS IS A SERIOUS SAFETY ISSUE THAT MUST BE ADDRESSED BY LEXUS.

REAR CALIPER BLEW WHILE DRIVING - ALMOST LOST BRAKES ON HIGHWAY - VEHICLE WAS UNSAFE TO DRIVE. IGNITION COILS FAILED (TWICE) WHILE DRIVING - LOST POWER - ALMOST GOT HIT BY A TRUCK STEERING FLUID LEAK - DEALER SAYS TO GET ENTIRE STEERING REPLACED OR MAY LOSE STEERING WHILE DRIVING!! ALL THIS STARTED AT A MERE 42,891 MILES - AND WE NARROWLY AVERTED POSSIBLE ACCIDENTS AT HIGH SPEED!

TL*THE CONTACT OWNS 2007 LEXUS RX 350. WHILE THE CONTACT DROVE APPROXIMATELY 20 MPH, IN ORDER TO PREVENT A CRASH WITH THE VEHICLE IN FRONT OF HER SHE APPLIED THE BRAKES AND THE VEHICLE DID NOT STOP CAUSING A CRASH TO OCCUR. THERE WERE NO INJURIES OR POLICE REPORT FILED. THE FRONT END OF THE VEHICLE WAS DAMAGED. THE CONTACT HAD NOT TAKEN THE VEHICLE TO A DEALER OR A LOCAL MECHANIC TO BE REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 43,400.

TL*THE CONTACT OWNS A 2007 LEXUS RX350. WHILE DRIVING 45 MPH ON A CURVED RAMP WHEN THE CONTACT APPLIED THE BRAKES THEY FAILED CAUSING HER TO LOSE CONTROL OF THE VEHICLE CRASHING INTO A RAMP WALL AND THE VEHICLE ROLLED OVER. THE DRIVERS SIDE FRONT AIR BAG DIDN'T DEPLOY. THE CONTACT RECEIVED INJURIES TO THE FACE, MOUTH, AND BODY. THE INVESTIGATOR FOUND THE RIGHT FRONT ROTORS FRACTURED. NEVADA STATE POLICE REPORT NHP0705110020 WAS FILED. THE FAILURE AND CURRENT MILEAGES WERE 10,000.

TL*THE CONTACT OWNS A 2007 LEXUS RX350. THE CONTACT WAS DRIVING APPROXIMATELY 15 MPH ON NORMAL ROAD CONDITIONS; HOWEVR, IMMEDIATELY AFTER APPROACHING A TRAFFIC SIGNAL HE HAD TO ENGAGE THE BRAKES WITH AGGRESSIVE FORCE SEVERAL TIMES. THE VEHICLE FAILED TO SLOW DOWN AND REAR ENDED THE PROCEEDING VEHICLE. THE POLICE WAS CALLED TO THE SCENE. THERE WERE NO INJURIES OR DAMAGES TO THE VEHICLE. THE VEHICLE WAS DRIVEN WITH CAUTION TO THE RESIDENCE AND TOWED TO AN AUTHORIZED DEALER. THE TECHNICIAN REFUSED TO INSPECT THE VEHICLE AND INFORMED HIM THAT THE MANUFACTURERS ENGINEER WOULD PERFORM AN INVESTIGATION. THE MALFUNCTION HAS NOT BEEN DETERMINED AT THIS TIME. THE FAILURE MILEAGE WAS 57,000. THE VIN WAS UNAVAILABLE.

AFTER TAKING MY WIFE TO WORK ON A RAINY DAY IN HER 2007 LEXUS RX350, I STOPPED IN OUR DRIVEWAY, WHICH IS ON AN INCLINE, TO WORK ON THE WINDSHIELD WIPERS TO TRY TO SET THEM TO THE "AUTOMATIC" MODE. SUDDENLY, THE CAR LURCHED FORWARD AND WENT THROUGH THE OPEN GARAGE DOOR, THROUGH THE GARAGE, THROUGH THE BACK WALL OF THE GARAGE, AND FINALLY CAME TO A STOP CLOSE TO THE BACK WALL OF THE FAMILY ROOM. I TRIED TO STOP THE CAR WITH THE BRAKES, BUT I COULD NOT. I TRIED THREE TIMES UNSUCCESSFULLY. THE AIR BAGS DID NOT DEPLOY. LUCKILY , I WAS NOT HURT, BUT THE BACK WALL OF THE GARAGE AND ITEMS ALONG THE BACK WALL WERE DEMOLISHED AS WELL AS ITEMS IN THE FAMILY ROOM. *TR