Home · 2012 Lexus RX 350h · Complaints

What 44 owners told NHTSA about the 2012 Lexus RX 350h

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (44)Crash / fire / injury (15)Speed control (11)Brakes (8)Electrical system (7)Engine (6)Airbags (5)Transmission & drivetrain (5)Electronic Stability Control (esc) (4)Body & structure (3)Fuel system (3)Seat belts (2)

3 of 44 complaints match · Fuel system · clear filters

Jul 5, 2020Electrical systemEngineFuel systemFire

THE CFEI (CERTIFIED FIRE & EXPLOSION INVESTIGATOR) FIRE LIEUTENANT/INVESTIGATOR WITH THE CITY OF FT. LAUDERDALE'S FIRE DEPT, WHO ALSO RESPONDED TO MY 911 CALL, HAD POINTED OUT AND EXPLAINED TO ME THE INTENSITY OF FLAME, HEAT AND BURN PATTERN IN THE ENGINE AND STATED THAT THIS WAS CAUSED BY A MECHANICAL ENGINE MALFUNCTION. WHAT HAPPENED: I HAD JUST DRIVEN MY 2012 LEXUS RX350 A SHORT DISTANCE ON THE HIGHWAY WHEN I PULLED INTO A 7-11 PARKING LOT NOT FAR FROM THE GAS PUMPS AND PUT THE CAR IN PARK. WITH THE ENGINE STILL RUNNING, I OPENED MY DRIVERS SIDE WINDOW TO TALK TO A FRIEND WHEN I IMMEDIATELY SMELLED SOMETHING BURNING. I FILED A REPORT WITH LEXUS THE VERY NEXT DAY AND RECEIVED A LETTER 3 WEEKS LATER. THEIR LAST PARAGRAPH SAYS "WE UNDERSTAND THAT YOU REPORTED THIS TO GEICO AS WELL. IF THEIR INVESTIGATION HAS REVEALED ANY EVIDENCE OF PRODUCT LIABILITY, WE WILL GLADLY REVIEW THAT INFORMATION." I CALLED OUT TO HIM AS HE WAS WALKING FROM HIS VEHICLE TOWARDS MY CAR AND YELLED OUT TO HIM THAT SOMETHING SMELLED LIKE IT WAS BURNING. HE THEN TOLD ME TO RELEASE THE HOOD BECAUSE HE NOTICED SMOKE COMING FROM THE ENGINE. HE SLIGHTLY RAISED THE HOOD, SAW A FLAME, SLAMMED THE HOOD SHUT, THEN HE YELLED OUT TO ME "GET OUT OF THE CAR NOW YOUR ENGINE IS ON FIRE". I JUMPED OUT, CALLED 911, THEN STARTED TAKING PHOTOS WITH MY PHONE WHILE WATCHING AS MY VEHICLE BECAME ENGULFED IN FLAMES AND SMOKE. FIRST I HEARD THE TIRES BLOW OUT THEN I HEARD THE WINDSHIELD BLOW OUT. MY FRIEND SAW THE FLAMES WHEN HE LIFTED THE HOOD AND SAID HE OBSERVED THAT THE FIRE WAS BURNING IN THE CENTER OF THE MOTOR AT THE FUEL MANIFOLD. THE FIRE DEPT ARRIVED ABOUT 5-7 MINUTES LATER AND PROCEEDED TO TRY TO PUT OUT THE FIRE. THE CAR IS A TOTAL LOSS!

NHTSA ODI 11337569

Jul 8, 2014Fuel systemSpeed controlCrash3 injuries

CONTINUATION OF MY REPORT. ABOUT A MONTH LATER THE SAME SUDDEN ACCELERATION OCCURRED BUT IN REVERSE AS THE DRIVER WAS LEAVING HER HOME AND THIS TIME SHE COULD NOT STOP THE VEHICLE, GOING THRU THE CONCRETE FENCE OF HER FRONT NEIGHBOR TAKING A SIDE OF THE NEIGHBOR HOUSE, DOWN A HILL AND HITTING TWO AIR CONDITIONER UNITS AND AN ELECTRICAL GENERATOR, DAMAGING THE WHOLE RIGHT SIDE OF THE VEHICLE AND THE REAR, BRAKING THE REAR DRIVE TRAIN AND GETTING STUCK IN A CONCRETE WALL WHICH SAVE THEIR LIFE. IF THE VEHICLE WOULD HAVE GONE 10 MORE FEET IT WOULD HAVE DROP IN AN APPROXIMATELY 800 TO 900 FEET CLIFF AND PROBABLY WOULD HAVE LOST THEIR LIVES. THE VEHICLE WAS A TOTAL LOSS. ACCORDING TO THE DRIVER SHE PUT ON HER BRAKES AND THEY DID NOT WORK. ACCORDING TO THE WITNESSES THERE WAS ONLY ONE TIRE BRAKE TRACK ON THE ROAD WHICH IT WAS GONE BY THE TIME I WENT TO INVESTIGATE. MY THEORY IS THAT ELECTRIC SURGES FROM THIS HIGH INTENSITY CABLES INTERFERE WITH THE THROTTLE CONTROL AND ACCELERATE THIS VEHICLES. IT IS THE ONLY LOGICAL EXPLANATION. IF THERE IS A WAY TO TEST THIS THEORY I SURE WOULD APPRECIATE IT. PLEASE ANSWER ME AS SOON AS POSSIBLE. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR UPDATED 3/13/15 *JS

NHTSA ODI 10609022

Jul 8, 2014Fuel systemSpeed controlCrash3 injuries

FIRST PART OF COMPLAINT JUST IN CASE IT DID NOT GO THRU THE FIRST TIME. DEAR SIRS, I'M WRITING TO YOU ON BEHALF OF THE OWNER OF THIS VEHICLE. THEY HAVE CONTRACTED ME AS A VEHICLE ACCIDENT RECONSTRUCTIONIST IN PUERTO RICO. I NEED TO KNOW IF YOU HAVE MADE ANY INQUIRIES IN THE FUEL DELIVERY AND PROPULSION SYSTEM. MY CONCERN IS THAT THIS TOYOTA, LEXUS AND HONDA VEHICLES THAT I KNOW OF SO FAR, ARE HAVING SOME KIND OF SUDDEN ACCELERATION ISSUES AND THE COMPUTER DOES NOT CATCH THE PROBLEM. THIS ACCELERATION SURGES THAT I HAVE FOUND OUT ABOUT, ALL HAVE OCCURRED AROUND HIGH ELECTRICITY AREAS. SO FAR THAT I KNOW OFF, THREE OF THESE SURGES HAVE OCCURRED NEXT TO THE ELECTRICAL PLANT CENTER IN PALO SECO PUERTO RICO AND ONE CAUSED TWO DEATHS. THE OTHER ONE IS THE ONE I'M REPRESENTING WHICH OCCURRED IN THEIR HOME TWICE. THE FIRST TIME WAS ABOUT A MONTH BEFORE THIS ACCIDENT BUT THE DRIVER HAD THE CHANCE TO CONTROL THE VEHICLE AND NOTHING HAPPENED. AT THAT TIME THE VEHICLE WAS TAKEN TO THE DEALER FOR A CHECKUP AND NOTHING STRANGE SHOWED ON THEIR SYSTEM. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR UPDATED 3/13/15 *JS

NHTSA ODI 10609024

Working with the data? Download all 44 complaints as CSV · fetched from NHTSA July 21, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2012 Lexus RX 350h verdict →