2010 Lexus Hs Driver assistance Problems

Pre Collision System light on dash, abs lights, traction lights etc Error Code C1391which requires a Brake Booster pump AND a Brake booster pump kit due to a MALFUNCTION which should be manufacturers responsibility. They launched a customer support program for a very short period (you had to have the error during this short time) and EXCLUDED all HS250h from the Secondary Coverage period by noting expiry if vehicle is over 10years which they were past that at the time of LAUNCHING THE CUSTOMER SUPPORT PROGRAM which is completely unethical and negligent to their customers. I was never notified of this program. This short time frame under the program leaves MOST customers with these vehicles at risk. A safety RECALL should've been done as this is a big safety issue. It is not safe to drive with a bad brake booster because it significantly compromises your vehicle's braking power, making it dangerous. A failing brake booster can cause a vacuum leak, which can lead to the engine stalling when you apply the brakes. Unreliable and worsening problem: The issue is likely to get worse over time, and you could be caught off guard by a complete failure, leaving you with dangerously unreliable brakes. Vehicle has been inspected by Lexus and Toyota, both quoting astronomical fees associated with Brake booster replacement due to malfunction. Lexus Customer Brand Support was of no help, just repeatedly stating that the program expired and that it is up to me if i want to pursue legal action because this needs to be resolved by lexus. There have been class action suits and accidents due to this malfunction and I will pursue legal action as this is complete negligence by Lexus.

NHTSA ID

11700444

Incident

Nov 3, 2025

BRAKE BOOSTER NOT WORKING A SAFETY ISSUE TOYOTA WILL NOT TAKE RESPONSIBILITY THE SAME THING IS HAPPENING WITH THE PRIUS THEY USE THE SAME SYSTEM.

NHTSA ID

11255742

Incident

Aug 16, 2019

Mileage

99,990 mi

MY BRAKE BOOSTER FAILS WHILE DRIVING AND THERE IS A RECALL FOR OTHER TOYOTAS NOT FOR LEXUS HS250H HAVE TO PAY OUT OF PACKAGE FOR REPAIR. THE REAR LIGHT IS LED AND THEY BURN OUT NO REPLACEMENT FROM LEXUS.

NHTSA ID

11244570

Incident

Jul 16, 2019

I HAVE A COMPLETE LOSS OF MOTIVE POWER A LOT WHEN I RUN OVER A BUMP AND THEN MY CAR ACCELERATE FASTER ALMOST CAUSING ME TO HIT SOMEONE IN THE REAR.

NHTSA ID

11196825

Incident

Apr 10, 2019

Mileage

129,000 mi

TL*THE CONTACT OWNS A 2010 LEXUS HS250 HYBRID. WHILE THE VEHICLE WAS STOPPED AND THE CONTACT HAD HER FOOT ON THE BRAKE PEDAL, THE VEHICLE SUDDENLY ACCELERATED. THE CONTACT APPLIED THE BRAKES WITH EXTREME FORCE TO STOP THE VEHICLE. THE FAILURE OCCURRED FOUR TIMES. WHENEVER IT RAINED, THE VEHICLE SLID WHEN THE BRAKES WERE APPLIED. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER BUT THE FAILURE COULD NOT BE DUPLICATED. THE CONTACT CALLED THE MANUFACTURER WHO STATED THAT AN ENGINEER WOULD INSPECT THE VEHICLE MID-OCTOBER 2010. THE VEHICLE HAD NOT BEEN REPAIRED. THE FIALURE MILEAGE WAS APPROXIMATELY 6,300 AND THE CURRENT MILEAGE WAS 9,316.

NHTSA ID

10360505

Incident

Jul 15, 2010

Mileage

6,300 mi

ON 4 SEPARATE OCCASIONS- 2 TIMES EACH FOR 2 DIFFERENT DRIVERS, OCCURRING ABOUT EVERY 1200 MILES, OUR LEXUS HS250H ACCELERATED DURING A STOPPED OR BRAKING SITUATION. WE BROUGHT IT TO THE DEALER AND CONTACTED LEXUS CUSTOMER SERVICE. THE RESPONSE: [THERE IS NOTHING WRONG AND THE VEHICLE IS OPERATING NORMALLY. YOU ARE EITHER USING THE ACCELERATOR AND BRAKE AT SAME TIME OR JUST EXPERIENCING THE GAS ENGINE STARTING UP WHICH IS GIVING YOU THE SENSATION OF MOVING WHEN YOU ACTUALLY AREN'T MOVING. THIS SENSATION IS NORMAL FOR BOTH PRIUSES AND HS 250 MODELS.] I CAN USUALLY TELL WHEN THE GAS ENGINE FIRES UP AND THE SENSATION IS DEFINITELY DIFFERENT THAN THE SCARY PROBLEM WE ARE HAVING. WHEN ASKED WHAT TO DO IF THIS CAUSES AN ACCIDENT THE RESPONSE WAS: [CONTACT YOUR INSURANCE COMPANY]. CLEARLY LEXUS HAS NO INTENTION OF ADMITTING THAT THERE'S ANYTHING WRONG. NO SALESPERSON INFORMED US THAT THE NORMAL OPERATION OF THE CAR INCLUDES SUDDEN ACCELERATION OR THE "SENSATION" OF IT. TWO INCIDENTS CAUSED MY WIFE TO SLAM ON THE BRAKE IN BUMPER TO BUMPER TRAFFIC TO AVOID HITTING THE CAR`IN FRONT AND ONE INCIDENT CAUSED ME TO HIT AN OBJECT IN MY GARAGE. *TR

NHTSA ID

10342029

Incident

Mar 24, 2010

Mileage

1,200 mi

TL* THE CONTACT OWNS A 2010 LEXUS HS 250. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, WHEN BRAKING WITHOUT A WARNING THE VEHICLE ACCELERATED ON ITS OWN. SHE STEPPED ON THE BRAKES WITH EXTREME PRESSURE AND IT STILL DID NOT STOP. AFTER A WHILE THE BRAKES ENGAGED AND STOPPED THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THERE WAS NO PROBLEM WITH HER VEHICLE AND THAT THEY HAVE NEVER HEARD OF THIS ISSUE. THE ACCELERATION HAS HAPPEN 9 TIMES IN THE NINE WEEKS SINCE SHE PURCHASED THE VEHICLE. THE VEHICLE WAS AT THE DEALER AT THE TIME OF THE COMPLAINT. THE CONTACT STATED SHE WILL NOT DRIVE THE VEHICLE UNTIL IT IS REPAIRED. THE FAILURE MILEAGE WAS 3000 AND THE CURRENT MILEAGE WAS 6500.

NHTSA ID

10310953

Incident

Nov 28, 2009

Mileage

3,000 mi

TL*THE CONTACT OWNS A 2010 LEXUS HS250H. THE CONTACT WAS DRIVING APPROXIMATELY 60 MPH ON NORMAL ROAD CONDITIONS WITH THE ACCELERATION CRUISE CONTROL FEATURE ACTIVATED. THE CRUISE CONTROL SYSTEM FAILED TO FUNCTION WHEN IT WAS DISENGAGED. THE ACCELERATION CONTINUED, FOLLOWED BY AN UNINTENDED INCREASE IN SPEED. THE DRIVER WAS ABLE TO SLOW THE VEHICLE DOWN. THERE WERE FOUR SEPARATE OCCASIONS THAT THE IDENTICAL FAILURES OCCURRED WITHOUT WARNING. THE VEHICLE HAS NOT BEEN REPAIRED FOR THE MALFUNCTION AT THIS TIME. THE CONTACT HAD CONCERN OF THE POTENTIAL SAFETY HAZARD. THE FAILURE MILEAGE WAS 2,000. UPDATED 2/26/10 *CN THE CONSUMER WAS INFORMED BY THE DEALER, THE CRUISE CONTROL WAS DESIGNED THAT WAY. UPDATED 05/10/10*JB

NHTSA ID

10299616

Incident

Jan 10, 2010

Mileage

2,000 mi