Service Brakes Problems of Lexus Rx400h - part 1

Lexus Rx400h owners have reported 67 problems related to service brakes (under the service brakes category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Lexus Rx400h based on all problems reported for the Rx400h.

1 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 06/13/2022

The contact owns a 2008 Lexus Rx400h. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormal sound with the vsc message displayed and the abs and traction control warning lights illuminated. Additionally, the vehicle made the same abnormal sound for 15 minutes after the vehicle was turned off. The vehicle was taken to an independent mechanic who diagnosed that the abs accumulator pump needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but informed the contact that the extended warranty had expired. The failure mileage was approximately 138,140.

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2 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 11/16/2021

The contact owns a 2006 Lexus Rx400h. The contact stated while driving at various speeds, the brake pedal would depress to the floorboard without proper braking functionality. The contact stated that the abs, traction control, service brakes, and several other unknown warning lights were illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the skid control unit needed to be replaced however, the vehicle was not repaired. The contact then spoke to a local dealer but did not take the vehicle to be inspected due to the cost of the diagnostic fee. The manufacturer was informed of the failure and informed the contact that the VIN was not under recall. The failure mileage was approximately 190,000.

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3 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 06/01/2019

The contact owns a 2006 Lexus Rx400h. While driving, the brake pedal became very difficult to depress and vibrated while being depressed to the floorboard. Also, the brake warning indicator was illuminated. The contact stated that she was able to drive 30 mph to Lexus of glendale (1221 s brand blvd, glendale, CA 91204, (818) 507-1300) where it was diagnosed that the brake actuator needed to be replaced. The vehicle was not repaired. The vehicle was later taken to an independent mechanic, but was not diagnosed or repaired. The manufacturer was made aware of the failure and provided case number: 1911142372. The failure mileage was approximately 110,000.

4 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 04/10/2019

Tl the contact owns a 2008 Lexus Rx400h. While driving approximately 40 mph, the brake pedal was depressed and the contact felt an abnormal vibration in the brake pedal. The contact stated that the abs warning indicator illuminated and additional distance was needed to stop the vehicle. The vehicle was taken to rick hendrick Toyota sandy springs (located at 6475 roswell rd, atlanta, GA 30328, (404) 476-3921) where it was diagnosed that the brake actuator needed to be replaced. The vehicle was not repaired. The contact was informed that there was a warranty extension for the abs, but it expired. The manufacturer was notified. The approximate failure mileage was 111,000.

5 Service Brakes problem of the 2007 Lexus Rx400h

Failure Date: 01/28/2019

While driving from florida to fairfax, CA the vehicle stalled ~10 time unexpectedly with loss of power brakes and power steering, making a very dangerous situation. The "check hybrid system and check vsc system" showed on the dash. Clearing the codes restarted the vehicle. I stopped in denver, CO at kuni Lexus of greenwood village, whom road tested the vehicle for 30 miles but were unable to duplicate the fault. Obdii dtc p3105 was read on my scanner before arrival. I have researched the failure more and found out on Lexus tis system; on 01/15/2014, Lexus of miami claimed to have completed safety recall 13v396000 (intelligent power module (ipm) solder failures) but they only diagnosed some other problems and did not have time to perform this recall, neither did the inform me of it! I stopped at Lexus of tacoma at fife, wa and they denied diagnosis due to minor body damage on the rear quarter panel where they claim water came in. This is not the location of water intrusion! the location is due to body seam cracks above that plain of the quarter panel damage, near the rear gate struts and hinges (see l-sb-0019-09), but they wouldn't look at that either and told me to go to their sublet body shop where the manager agreed with me that the water leaks into the high voltage battery pack/controller area was from the l-sb-0019-09 and not the quarter panel area. I sealed up all possible water intrusion areas and disassembled the hv battery pack area to see how much and where the water was (many photos) and dry it out with several days of sunshine here in fairfax, CA. I informed Lexus corp about the relative recall/sb and they denied to complete it! the vehicle is back together and I am waiting on your response. I can be reached by email (I don't carry a cell phone) thank you!.

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6 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 10/03/2018

Tl the contact owns a 2008 Lexus Rx400h. While driving 60 mph, the vehicle stalled and the abs, brake system, and slip warning indicators illuminated. The vehicle was taken to carmax (3100 spur 482, irving, TX 75062, (972) 721-0500) where the contact was informed to ignore the failure and to bring the vehicle back in if the failure recurred. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 78,068.

7 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 05/01/2018

This was our first hybrid vehicle. We were not familiar with the weird noises and the particularsbin the way the vehicle operates. This particular issue was with the abs breaking system. I had taken my car to Lexus a few times for oil changes, a problem with the power converter and another issue over the last 6 plus years I always complained about the pulsing of the brakes and the barking and other noises coming from the car. This last month or so a warning light for abs and another warning had come up. I had recently had the rear brakes done and called the local brake shop . They ran diagnostics and said the abs actuator needed replaced. Error code c1256 and c1391. I decided to look up these codes and my Lexus model and found many. Many many people with this same issue over the last 3 years or so. Most received a letter from Lexus advising of a"warranty enhancement. I have never received this or any recall letter for my Lexus. The people on these Lexusclub boards all had this issue. Many of them did not have the "warning light" come on and were denied a repair. I have always had the issue and the warning light came on a month or so ago and I find that this is a hugh safety issue since it's with the breaking system. Lexus is aware of it and extended the warranty to 12/31/2017. Well even though I purchased an extended warranty they say it's not covered and ithe repair is about $2500-$3000 . Today we called Lexus customer service and they state it's our fault for not bringing it in on time they said they did their due diligence and sent them. Well I have never once received any recall it warranty enhancement notice. I have lived here 23 years and owned the car for more than 6 years. Lexus calls this a warranty enhancement"dealers call this a safety issue. Should have been a recall . But to avoid the recall stigma they issue an enhancement.

8 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 04/02/2018

The contact owns a 2006 Lexus Rx400h. While the contact's wife was driving various speeds, the brake pedal was depressed, but failed to engage. The brake pedal traveled to the floorboard before coming to a stop. There were no warning indicators illuminated prior to the failure. The contact researched the VIN online at NHTSA. Gov, but found no open recalls. The vehicle was not taken to a dealer or independent mechanic for diagnostic testing or repairs. The contact stated that the failure had been recurring for the past two years. The failure mileage was 220,000. The VIN was not available.

9 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 03/21/2018

My vehicle was in motion and failed to properly break which therefore ended hitting an older model BMW at approx 45mph. The airbags inflated sending some type of metal shards to my right lower abdomen that resulted in massive bleeding.

10 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 03/12/2018

May 1, 2018 Lexus headquarters us 19001 s western Ave torrance, CA 90501 attn: customer service I am the owner of a 2006 Rx400h I have recently discovered has an abnormal leak in the brake actuator designated c1391 on computer diagnostic equipment. I have been advised by the service department of a local dealership that this has rendered the abs brake system inoperable. Further, I am disappointed to learn Lexus is unwilling to repair the car under a warranty extension program established by the company. My vehicle is beyond the 10 year window established by Lexus for this program, yet under the 150,000 mileage limit. Through on-line research I learned Lexus has been aware of vehicles with defective brake actuators for over a decade. Yet, the company failed to provide notification that would have allowed me to take corrective action within the warranty extension time period. I am disheartened to learn Lexus would allow an owner to drive a vehicle with a latent safety defect. And, I do not understand why Lexus would jeopardize the quality brand it has worked so diligently to establish. Under similar circumstances, Honda honored an extended vehicle warranty on my car, totally unrelated to safety. The company replaced a faulty air conditioning compressor, warranted for 80,000 miles, on a car with 85,000 miles without charge. Honda supports customers with action, not just words. In my opinion, they delivered on a commitment to customer satisfaction. I would have expected no less from Lexus. I urge Lexus to reconsider the company's decision to not repair a defective component on my vehicle that compromises my safety and the safety of others. Thank you for your consideration in this matter.

11 Service Brakes problem of the 2007 Lexus Rx400h

Failure Date: 11/01/2017

Accumulator leak. Driving. Effects braking system.

12 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 08/24/2017

Brake actuator overworking,brakes chirp when pedal compresses,all dash warning light on. "check vsc system" - abs,brake,traction control,red caution light. Regenerative braking not working.

13 Service Brakes problem of the 2007 Lexus Rx400h

Failure Date: 08/18/2017

The contact owns a 2007 Lexus Rx400h. The contact stated that while driving at 40 mph, the brake pedal was depressed and felt abnormally soft. The contact stated that there was no warning light illuminated. The vehicle was taken to harvey Lexus located at 2550 28th st se, grand rapids, mi 49512, (616) 949-1010, to be diagnosed. The contact was informed that the computer control module failed and needed to be repaired. The contact stated that the vehicle was repaired. The vehicle was included in NHTSA campaign number: 13v396000 (electrical system). The manufacturer was not notified of the failure with the vehicle. The approximate failure mileage was 110,000.

14 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 08/02/2016

The contact owns a 2006 Lexus Rx400h. The contact stated that the vehicle would emit abnormal sounds long after it was parked. Additionally, the contact stated that while driving at 10 mph, the brake pedal was depressed but failed to respond. The contact stood on the brake and the vehicle finally responded. The brake warning light and the abs warning light were illuminated. The contact was able to continue driving at lower speeds. The vehicle was taken to an independent mechanic where it was diagnosed that the abs actuator had failed. The dealer and the manufacturer were notified of the failure but informed the contact that the vehicle could not repaired under Lexus technical service bulletin number: pol16-01 as the VIN was not included. The vehicle was not repaired. The failure mileage was approximately 100,000. The VIN was unavailable.

15 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 02/03/2016

While attempting to back into a parking space, accelerator stuck in down position, brakes locked up, engine accelerated to very fast rate, steering would not respond resulting in my car slamming into front end of car parked behind me at a high rate of speed. My car then accelerated forward continuing at a very high rate of speed across parking lot and hitting another car broadside which finally stopped my car. My car was a total loss as deemed by my insurance company.

16 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 11/19/2015

I have abs vsc and several other lights on on the dash. The response from Lexus is I need a new abs accumulator assembly. Costs is in the thousands. The similar model design pump was used in the 2007-2011 camry. Toyota has issued a warranty extension on that pump. Why has the Rx400h and the highlander not received this extension!.

17 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 02/23/2014

Slowing the vehicle at a stop sign from about 20mph. Constantly applied brake pressure. At about 15mph the brake pressure involuntarily released and the car accelerated forward. My foot was never on the accelerator and continued to apply pressure to the brake throughout the acceleration. Approx. 1/4 second after the acceleration, the brake came back on and continued to apply at the same constant pressure. The entire sequence of events lasted about 1/2 a second but caused the vehicle to lurch forward while braking. This happens about once a week.

18 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 01/13/2014

As I was approaching a red light I started to brake. My brakes did not engage even when I pumped. I swung my care to the left so I would not rear end the car in front. I hit the car on the passenger rear corner (on my left) and totaled my Lexus. My brakes were fine up to that moment and although I could not drive the car away from the scene they seemed to be working again when I pressed on them (although I cannot be sure as the car was still). It was horrible.

19 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 01/17/2013

I was driving the Lexus Rx400h within the city and tried to brake suddenly to avoid a failed car in my lane. I pushed really hard on the brake pedal and continued to step hard on the brake. There was no braking action whatsoever. It appeared as if pressing very hard on the brake just disabled the brake. The car continued to drive like it was on a cruise control and the incident resulted in rear-ending the car in front.

20 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 07/22/2012

I recently purchased (07/17/12) a 2008 used Rx400h, I quickly noticed that while braking if the road has any bumps or unevenness the vehicle surges forward during the braking process and then resumes braking after the surge. This happens consistently when there are any bumps in the pavement. This is very frightening as it could easily cause an accident since the braking is interrupted and the car actually accelerates when it should be slowing down! I haven't driven it in the winter yet but I am already concerned and upset that this car that I purchased because of the high safety ratings on the NHTSA site now turns out to be potentially very unsafe.

21 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 03/01/2011

Unexpected vehicle acceleration - lack of adequate braking during disengagement of hybrid regenerative braking.

22 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 04/20/2010

Lexus Rx400h 2006 - abs - when applying brakes to slow down, if the car is on a bumpy road, the brakes seem to give out and the car lunges forward. This seems to happen as car switches from regenerative braking to regular brakes. I have reported this issue to the dealer several times, and they have yet to find any problem.

23 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 04/15/2010

Momentary acceleration during normal braking. Problem occurs regularly (but not every time) during normal braking. Lexus dealer service writer reports this as normal and expected performance. It appears that normal braking starts with regenerative brakes and then transitions to friction brakes. There is a moment during the transition that braking power is lost and vehicle unexpectedly accelerates. To maintain even deceleration during every braking maneuver the driver must be particularly aware of this potential problem and be prepared to quickly apply significant additional pressure to the brake pedal during the transition phase then immediately remove the added pressure to prevent over-braking. .

24 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 03/03/2010

2008 Lexus 400h. When approaching a stop, at an approximate 25-35 mph, on typically city streets with somewhat uneven surface, while applying the brakes, the car will lurch forward momentarily shortly into the stop. It produces the sudden anxiety feeling that the car will not stop and can be felt by driver and passengers. It does not happen at every stop, just now and then. This has occurred since the car was purchased. We had the car serviced some time back to address the "b" gear not slowing the car on hills. The "b" gear issue was resolved during this service. Inadvertently the breaking issue seemed to occur less frequently. Since it has been some time since the service, the breaking issues has slowly resurfaced and with a greater frequency.

25 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 03/01/2010

We own a 2006 Lexus RX 400h and occasionally when the brakes are pressed the car 'jumps' forward. We have taken our vehicle to the Lexus dealership several times to report the issue but they always return and tell us nothing it wrong with the vehicles braking system. This event does not occur all the time, we are concerned that if we are required to stop suddenly to avoid an accident, etc. That our vehicle will jump and we will cause an accident.

26 Service Brakes problem of the 2007 Lexus Rx400h

Failure Date: 02/14/2010

I was approaching a stop sign at about 10 miles per hour and stepped on the brake pedal to stop. The car braked normally at first, then the car either free-wheeled or lurched forward for about half a second, but as I continued to press on the brake the car came to a stop but a little further than I wanted. I have noticed this about 10 times in the last 6 months but have not had any accidents. I finally contacted my dealer about the problem and he said that this was normal operation of the brakes on this model. He said that what I was sensing was the interval when the car switches between regenerative brakes and hydraulic brakes. He said that there is an order to fix the hs 2010 models so that the interval is minimized or eliminated but none for my model car.

27 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 02/11/2010

I own a 2006 Lexus Rx400h which I believe has exactly the same flaw as recently reported in the prius. Several years ago I had a minor accident caused by my car lurching forward during breaking which caused me to hit the car in front of me. When I brought my car into the Lexus of watertown dealership where I purchased the vehicle I reported that I thought the issue might be related to the transition between the regenerative braking system and the regular brake. It seemed like the regenerative braking system was turned off slightly before the regular braking system kicked in causing a gap in the braking that was perceived by me to be a "lurching forward". Of course, what it was a decrease in deceleration that appeared be acceleration. In any event, the dealer said he checked the brakes and could not find anything wrong. I would say from that time until now I had about one or two instances of this lurching per month. I am very used to hybrids and currently own a prius as well, so I know the idiosyncratic nature of the braking system. However, after the recent cascade of reports on problems with the prius I called my dealer again and told them, you should know that the Lexus has the same problem, I have had exactly the same problem with my Lexus have there been any other reports of problems. I believe I was told no, however, the wording of the answer was guarded. Today, I had another lurching event. Approaching a stop sign, on a smooth, dry road I lurched forward at approximately 15 mph. If a pedestrian were crossing the street at the time I would have hit them, causing serious injury, hopefully not death. This is a dangerous situation. I contacted my Lexus dealer to relay this issue today and say we must do the right thing. They did not respond, so I am moving forward with this formal complaint before more serious harm is done.

28 Service Brakes problem of the 2007 Lexus Rx400h

Failure Date: 02/08/2010

I have a 2007 Lexus Rx400h that I purchased new in December 2006. Ever since first taking ownership, I have noticed at speeds less than about 25 mph that the regenerative braking sometimes releases the brakes without warning and the hydraulic brakes do not immediately engage to take up the desired braking function. The resulting feeling is one of lost brake control and a slight surge forward by the vehicle. I first reported this to the dealer at the 10,000 mile service check (09-18-2007) and was told that the braking system was performing normally. "cannot verify customer concern. " I have several times since asked the Lexus dealer about this problem that I continue to experience, and each time have been told that my brake system is operating normally. The dealer has said that it must be that I'm not used to the regenerative braking system action, despite the fact that I've now driven the car over 55,000 miles. I've also been told by the dealer that they've had no other complaints of this type with my model vehicle. I've known all along that I wasn't imaging this problem and after all the publicity regarding the prius brake and accelerator problems I realize that Toyota / Lexus has been ignoring this issue.

29 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 02/07/2010

I own 2 2006 Lexus RX 400 h hybrid SUV's. From the first week I complained that the brakes would not always engage when you depressed the brake pedal. The car would lurch forward when the brakes did not engage for 1 or 2 seconds. The Lexus dealer has dismissed my complaint each time. Now there appears to be a voluntary recall of Toyota hybrids and one line of Lexus hybrids with the identical problem. But the problem is not just with their new s50 Lexus hybrid. It has existed at least as far back as 2006 with my cars.

30 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 02/06/2010

My Lexus r400h brakes are not braking as other cars.

31 Service Brakes problem of the 2008 Lexus Rx400h

Failure Date: 02/03/2010

The contact owns a 2008 Lexus Rx400h. The vehicle continuously began to accelerate on it's on and lunge forward whenever the contact drove over uneven pavement at approximately 20 mph. The vehicle was taken to the dealer who confirmed that the malfunction should occur when the vehicle was switching from an electrical engine to a gasoline engine. The failure mileage was 28,000.

32 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 02/01/2010

I went to the dealership last morning of Feb 3 2010 for my regular serivice. I didn't know yet that time about the story behind the break time lag of prius. Because that day I told Lexus to take a look on my brake as I am having the same problem as the prius. My car is a Rx400h 2006 model. Not only I'm having the same problem during slow movement(approaching the traffic light) but even on a high speed(60-65). I compalain the problem to Lexus 3 years ago and they did some adjustment(I don'y know what exactly is) but still I always have that problem at least once or twice a month. Mywife is the one who drives that car a lot, and she told me that she never have that episode on a high speed, but she said she always have that on a 50mph speed on a local strret, which is even worst, as the car in front of you are very close. Actualy last Feb 3 2010 the Lexus gave me a loaner car for that day and it is a hs hybrid car(450 miles) and it's almost new, and I was surprised that it has the same problem when I'm approaching the traffic light. So I told myself, is this normal to a hybrid? my Rx400h is now 4 years and I cannot remember I'm having that problem on it's 1st year. I believe the slow speed was started a month ago. (mid Jan 2010) and the high speed is probably 3 years now. This message is not a complain, but rather them(Toyota) to investigate if everything is still normal.

33 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 01/30/2010

2006 Lexus RX 400 at slow speeds steps on brake and nothing happens for about 2 - 3 seconds. This has not caused an accidents as I have allow enough space for brakes to respond. This does not happen with any pattern and is difficult to predict when it will happen.

34 Service Brakes problem of the 2007 Lexus Rx400h

Failure Date: 01/20/2010

I recently purchased a used 2007 Lexus RX 440h with 22,000 miles on the odometer. Immediately (and several weeks prior to learning of potential Toyota and Lexus acceleration and braking issues) I noted that when braking from a low speed, say 20 mph at a stop sign, the brakes would initially take hold in a normal manner and then, for a very brief time, it felt as if the car was sliding, then the brakes would continue to take hold and bring the car to a normal stop. Typically this has occurred on a snowy or icy surface, but I have not detected the abs kicking in at any time. The abs has operated normally under other circumstances. At first I attributed this to the hybrid technology and regenerative braking system on the car. However, it now sounds exactly like the experience those driving prius and Lexus 250h automobiles have described that has been reported in the media. This braking anomaly occurs exactly the same way every time it occurs and it occurs frequently. So far I have owned the vehicle for less than one month.

35 Service Brakes problem of the 2006 Lexus Rx400h

Failure Date: 01/12/2010

Lexus Rx400h not on any recall list by Toyota. Have had multiple incidents of braking/acceleration problems. Toyota won't do anything except say bring it in for a test drive. It has already been test driven several times and the problem does not duplicate. It is rare, but it is dangerous. Toyota just shrugs it off. I know what the car does, I've driven it for nearly 3 yrs with approx. 12 incidents of the problem. Can you help?.



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