NHTSA — Service Brakes Problems

10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
61,129 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Lexus RX400H brakes problems

brakes problem

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2007 Lexus RX400H Owner Comments

problem #11

Aug 062022

RX400H

  • miles

A D V E R T I S E M E N T S

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.

- Havertown , PA, USA

problem #10

Sep 012021

RX400H

  • miles
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.

- Pacific Palisades, CA, USA

problem #9

Sep 202021

RX400H

  • miles
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

- Pennsauken, NJ, USA

problem #8

Jun 042021

RX400H

  • miles

A D V E R T I S E M E N T S

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.

- Omaha, NE, USA

problem #7

Jun 042021

RX400H

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

- Omaha, NE, USA

problem #6

Feb 202021

RX400H

  • 94,853 miles
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.

- Los Angeles, CA, USA

problem #5

Nov 142020

RX400H

  • 204,800 miles

A D V E R T I S E M E N T S

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.

- Longwood, FL, USA

problem #4

Oct 022020

RX400H

  • 169,000 miles
"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.

- Rockwall, TX, USA

problem #3

Jul 062020

RX400H

  • miles
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

- Columbus, OH, USA

problem #2

Mar 232020

RX400H

  • 160,875 miles
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.

- Los Angeles, CA, USA

problem #1

Mar 302016

RX400H

  • 42,891 miles
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!

- Princeton, NJ, USA

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