Which parts fail
Components named in complaints (service brakes, ABS, rotors and pads, parking brake).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2010 Lexus HS owners, lightly cleaned up (personal details are redacted by NHTSA).
I have a 2010 HS 250h with 90,000 miles. Out of the blue, the brake actuator started activating every 10 seconds (and even runs for a while once car is shut off) and there is a noise coming from brake pedal area when depressed. Lexus had previously recalled some 2010 HS 250 cars for brake booster pump issues. My VIN was not part of the recall; I dreaded this day would come. Toyota/Lexus is well aware of the brake booster pump issues in their hybrids. Dealer confirmed the issue and now it will cost me $3500 to have a problem fixed that Lexus should have handled a long time ago. I've contacted Lexus corporate and they will not fix the car. I hope the NHTSA will look into all the complaints about this issue and 2010 HS 250h cars. Lexus needs to step up and issue another recall.
The contact owns a 2010 Lexus HS-250h. The contact stated that the check engine warning light was illuminated. The contact stated that while depressing the brake pedal, the brake pump was continuously pumping brake fluid. The vehicle was taken to a certified mechanic who diagnosed that the braking system had malfunctioned, and there was an abnormal leaking of the adaptive cruise control pressure. The contact learned of NHTSA Campaign Number: 13V235000 (Service Brakes) which was related to the failure. The dealer was contacted and confirmed that the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 222,000.
Initially, the ABS, BRAKE, and Anti-skid lights illuminated on the instrument panel and braking began to be spongier than normal. This condition continued for approximately 4 years. The brake system now has failed and braking is extremely slow. The car began beeping constantly while on with or without the engine running. This latest error took place while driving at approximately 55mph, soon after a car entered the highway (4 lanes) in front of me, I braked but the brakes did not actuate properly increasing the stopping time and distance. Luckily, I was able to move to the left-hand lane and avoid a collision. …
there was a safety recall issued for this model for this year for this car. I took the car to someone and they told me there was a recall for this issue so I should take to the dealer. I took to the dealer in Chandler, they told me there was no open recalls. I called the Lexus customer service line, they told me to take the car to the place where they had originally done the recall work, at Bell Lexus. Even though they know this was from a recall they will not perform the work even though this is a known issue and safety recall on this car. this is the same combination as the recall and they will not even consider fixing it. [redacted] Toyota Motor Sales, U.S.A., Inc. …
ABS Braking System Pump with an abnormal leak of ACC Press. Under recall # DLD for the same ABS Brake Booster Pump failure a Lexus dealer repaired the system under recall notice in 2013. The same issue happened again in 2025 an ABS Brake Booster Pump failure rendering the car unsafe to drive with a defective braking system, an ABS light and Brake light illuminated on the dashboard. The vehicle was taken to a local repair shop which informed me the vehicle was unsafe to drive. I contacted the dealer who stated the repair in 2013 was on warrantied for one year. …
Lexus had a recall on certain 2010 HS250H cars for an issue where they have nitrogen gas leaking into brake fluid causing brake failure. My Vin number was not one of recalls however in August of 2023 they sent me a notice stating that if my car has this problem they will repair at no cost to me. Very expensive repair. That notice says they will repair until March 31 2024. It says if certain warning lights are not on , don't take it to get repaired. My car now has this problem and they are saying they won't repair it unless I pay for repair. I have 5 warning lights on and cruise control now won't work as well as they note that brakes could fell causing a collision. I can't afford the repair and I don't agree that they won't repair it. Under the recall there is no time limit and they would repair it today. …
Car has a brake malfunction. There was a recall issued for this model in 2013 for this year and model, yet they only included some VIN#'s in the recall when they know most if not all of these models have the problem. Recall: 13V235000 "Model year 2010 Lexus HS250h vehicles manufactured June 19, 2009, through October 9, 2009. Nitrogen gas from a component of the brake booster pump assembly could leak into the brake fluid." My car was manufactured during this period yet is still not included in the recall list. Lexus is absolutely responsible for a brake booster replacement, yet they refuse to accept responsibility. My car has always had odd braking on slick grounds, it has always skipped and slipped forward needing a larger breaking distance than a normal vehicle. Now my dash is lit up like a christmas tree due to a manufacturing malfunction. …
Complete loss of hydraulic brake pressure resulting in brake pedal traveling to the floor. Defect: Brake Actuator and Pump Assembly failure Risk: The vehicle has been deemed unsafe to drive by a certified Lexus technician and I was asked to sign a liability waiver to remove vehicle from dealership. Description: While driving my 2010 Lexus HS250h (90,729 miles) I experienced sudden and catastrophic failure of the braking system where the brake pedal traveled completely to the floor, significantly increasing stopping distance. A diagnostic at Lexus dealership confirmed a failed ABS brake actuator and pump assembly. The dealership stated the car is life-threatening unsafe to drive and required a signed liability waiver before I could tow it away. …
I own a 2010 Lexus HS250H. the problem exists that every warning light associated with the braking, traction, and anti lock system is on. Anti-Lock Braking System (ABS), Traction Control System (TRAC), and Vehicle Stability Control System (VSC) The dealer said it was a faulty Brake de booster and said it was checked in 2010 and was fine. And to fix the system they need to replace the brake de-booster at a charge of $3000. Apparently, it is not fine, and requested them to comply with the recall and change the debooster, and they said no. Are they libel for the recall fix? Running Sequence Number: 96610 Campaign Number: 13V235000 Make: LEXUS Model: HS Year: 2010 and Running Sequence Number: 68016 Campaign Number: 10V039000 Make: LEXUS Model: HS Year: 2010
The brake booster pump/accumulator has a diagnosed internal leak. It is identical to Toyota Safety Recall 13V-235 for Certain 2010 Model Year HS250h Vehicles. The exact failure described is what my Lexus HS 250h is experiencing and the DTC code is C1391, which FOUR separate shops have verified. The recall listed DTC C1246 and C1256, yet the condition is that there is an internal leak and one must replace the booster pump master assembly. They describe it as following, "The subject vehicles are equipped with brake pressure accumulators consisting of a metal plunger containing brake fluid encased in a metal housing. The plunger is designed with metal pleated bellows to allow for motion. Nitrogen gas is sealed between the plunger and housing. There is a possibility that a fatigue crack could develop in the bellows due to the vertical vibration of the plunger while driving. …
Related recalls
Service brakes
Toyota is recalling certain model year 2010 Prius vehicles manufactured March 31, 2009, through October 9, 2009; and model year 2010 Lexus HS250h vehicles manufactured June 19, 2009, through October 9, 2009. Nitrogen gas from a component of the brake booster pump assembly could leak into the brake fluid.
Remedy: Toyota will notify owners, and dealers will replace the affected brake booster pump assemblies. The recall began on August 7, 2013. Owners may contact Toyota at 1-800-331-4331.
Service brakes, air › Antilock › Control unit/module
Toyota is recalling certain model year 2010 Toyota prius and Lexus hs250h passenger vehicles. Customers have experienced inconsistent brake feel after ABS actuation during slow and steady application of the brakes on rough or slick road surfaces.
Remedy: Dealers will rewrite the programming of the ABS control unit free of charge. The safety recall began on March 3, 2010, and is expected to be completed in late March 2010.
Brake complaints in other HS years
Frequently asked questions
How common are brake problems on the 2010 Lexus HS?
NHTSA has 42 complaints about the brakes of the 2010 Lexus HS, 60% of the model year's 70 complaints. The component named most often is antilock/traction control/electronic limited slip › control unit/module (2 mentions).
Is there a recall for 2010 Lexus HS brake problems?
Yes — NHTSA recall 13V-235 (service brakes, Jun 5, 2013); NHTSA recall 10V-039 (control unit/module, Feb 9, 2010). Recall repairs are free at authorized dealers.
At what mileage do 2010 Lexus HS brake problems start?
Half of the complaints with a recorded mileage happened before about 5,000 miles, and 71% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 0 fires and 0 injuries to brakes problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.