RoadVitals

2010 Lexus RX Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
76
Latest Jul 29, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
14
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
9

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2010 Lexus RX, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Engine2223.4%
  • Brakes1819.1%
  • Electrical66.4%
  • Fuel system66.4%
  • Tires & wheels33.2%
  • Suspension33.2%
  • Body & structure33.2%
  • Airbags22.1%
  • Interior & seats22.1%
  • Other / unspecified22.1%
  • Powertrain (other)22.1%
  • Visibility11.1%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

22
reports

From owner reports, verbatim

I was looking at common problems associated with the make and model of my car. I came across an issue that could possibly cause engine failure. I am unsure if any one has reported it yet. here are the details - Problem overview An VVT-i oil line on the Lexus RX350 is known to burst. This is a very large leak which covers the ground, engine, and undercarriage. If the oil line ruptures while driving, the low engine oil message and engine oil pressure warnings will illuminate. Continued use after these warnings will result in complete engine failure due to oil starvation. The line is known to be defective, and a revised part has been issued by Toyota, however, this revised part is known for the same issue. To repair the issue, the line must be replaced, and the engine bay and undercarriage must be cleaned thoroughly. The problem has occured generally around 120k miles. Here is the link to the website that has collected information from 116 users. Requesting you to please check if this a problem that needs a recall? [XXX] ely report it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11734624 · filed Apr 29, 2026

Pot affects 2007-2011 RX350/450= 459,285 units. 1. On Friday, [XXX], the oil cooler pipe burst on our 2010 RX350. 2. All six quarts of engine oil were lost in approximately 700 feet while traveling at 70–75 mph on the highway. 3. Massive amounts of smoke poured from the front of the vehicle & through the air vents, causing my wife & daughter to fear for their safety due to risk of a fire & smoke inhalation. 4. No warning lights appeared on the dash, meaning the vehicle could easily have been driven to engine failure had there been no smoke. 5. 2 Colorado Department of Transportation vehicles & a State Trooper stopped to be sure they were ok & monitor the risk of a fire.  8. Towed & Lexus dealership confirmed seen many 3rd gen RXs with this same issue, some with seized engines because no dash warnings were triggered.   9. Lexus updated part from RUBBER to STEE, acknowledging design flaw.   Major Safety Concerns This failure represents a serious safety risk that could have resulted in fire, injury, death, or catastrophic engine/property damage. - Oil spray on hot engine components like the headers & exhaust pipes (700-1100F) poses a legitimate fire hazard considering oil flashpoint (400-700F). - Oil sprayed onto the brakes increased the risk of loss of braking & traction control in sudden/emergency maneuvers. - Engine seizing/stop due to loss of oil could result in an accident if the vehicle stops suddenly on the highway when it seizes, loses control, or the electric steering, braking &/or other safety systems fail. - If this had occurred on a mountain descent from the Rockies into Denver or any other long descent, a fire caused by oil spraying on 700-800F brake rotors or loss of control could have occurred. - Entire underside of the vehicle is coated in oil, contaminating the rear brakes, potentially damaging wiring, solenoids, & other safety-critical components, as well as representing an additional fire risk due to oil on the exhaust pipe.   INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

NHTSA ID 11699862 · filed Nov 17, 2025
All 22 reports naming engine

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

18
reports

From owner reports, verbatim

ABS TCS lights came on and check brakes warning was displayed. The power assist failed making the brake pedal very hard to press in order to stop.

NHTSA ID 11550000 · filed Oct 15, 2023

Abs actuator failure causing wheels to lock up in wet conditions along with loss of control..I nearly crashed into pedestrians when it failed. suddenly check abs light came on along with abs system malfunction...I could've been killed or killed someone. lexus will not cover the repair though they did for customers under 50k miles and under warranty which is completely criminal. Any lexus of Toyota highlander with abs assembly part # 44510-48080 needs to be recalled and replaced at Toyota and lexus immediately. They want $4000 to fix the system knowing they sold a critical safety part that malfunctions.

NHTSA ID 11514042 · filed Mar 27, 2023
All 18 reports naming brakes

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

15
reports

From owner reports, verbatim

unknown

NHTSA ID 11667070 · filed Jun 16, 2025

The contact called on behalf of her son who owns a 2010 Lexus RX350. The contact stated that she had taken her son's vehicle to the car wash. The contact stated while at a complete stop, in the carwash drive-through, the vehicle accelerated independently and the driver's side of the vehicle crashed into the wall on the left side of the carwash bay. Heavy metal structures fell on the vehicle. As a result, the windshield was shattered and the ceiling of the vehicle was bent. The air bags failed to deploy. There was no warning light illuminated. The contact sustained two large contusions below the knee of her left leg. The injured area later became swollen and bruised. The contact sought medical assistance. A police report was filed. The vehicle was towed to a tow yard. The vehicle was then towed to the contact's residence. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 12V305000 (Vehicle Speed Control). The manufacturer was notified of the failure and informed the contact that they would send a field inspector to retrieve the Event Date Recorder (EDR) in order to determine the cause of the failure. A case was opened; however, the manufacturer had not followed up with the contact. The failure mileage was approximately 250,000.

NHTSA ID 11497560 · filed Dec 15, 2022
All 15 reports naming driver assistance

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

9
reports

From owner reports, verbatim

The suv pulls hard to the right when accelerating and has almost driven me off the road. it does it at random times and its super dangerous

NHTSA ID 11722501 · filed Mar 6, 2026

When parked and turning the steering wheel or driving at low speed you hear a clunk / clunck noise vehicle makes knocking noises as it jumps up and down (bumpy) or vibrates when driving You can also feel it in your hands. Also it rattles and makes noises when turning. It feels like there is no lubrication. The drive feels not only unstable but also is very distractive while driving. Took car to Lexus and was told it is steering column or shaft or both; quote around $4000 with labor. Seems like a lot of people had same problems and the steering is manufacturing defect that should be recalled as a safety concern.

NHTSA ID 11579120 · filed Mar 24, 2024
All 9 reports naming steering

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

6
reports

From owner reports, verbatim

Odometer Fraud. The contact purchased a 2010 Lexus RX 350. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 139,000. It was discovered that the mileage was 177,000 in 2022. The contact contacted the Police, and the contact was advised to file a civil suit.

NHTSA ID 11753462 · filed Jul 29, 2026

Odometer Fraud. The contact purchased a 2010 Lexus RX450H. The contact discovered that there was a mileage discrepancy after the purchase of the vehicle. The vehicle was a private sale. At the time of the purchase, the vehicle mileage was 118,000. It was later discovered that the mileage was 183,000.

NHTSA ID 11691776 · filed Oct 7, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

6
reports

From owner reports, verbatim

I was looking at common problems associated with the make and model of my car. I came across an issue that could possibly cause engine failure. I am unsure if any one has reported it yet. here are the details - Problem overview An VVT-i oil line on the Lexus RX350 is known to burst. This is a very large leak which covers the ground, engine, and undercarriage. If the oil line ruptures while driving, the low engine oil message and engine oil pressure warnings will illuminate. Continued use after these warnings will result in complete engine failure due to oil starvation. The line is known to be defective, and a revised part has been issued by Toyota, however, this revised part is known for the same issue. To repair the issue, the line must be replaced, and the engine bay and undercarriage must be cleaned thoroughly. The problem has occured generally around 120k miles. Here is the link to the website that has collected information from 116 users. Requesting you to please check if this a problem that needs a recall? [XXX] ely report it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11734624 · filed Apr 29, 2026

There is a known issue in the form of a Warranty Policy Bulletin and I believe a recall in Canada for a faulty engine oil cooler line that was made of rubber and fails under heat (now replaced by metal lines). This happened to my daughter after a hot day and she pulled away from the driveway the next day. Almost all of the oil leaked out and we stopped the car and had it towed to a Lexus dealership. When it was inspected, it was confirmed this was the issue, and there was a noise in the engine. I have a concern that further engine problems may have resulted in a loose bearing needing compete replacement. This has yet to be confirmed, but seems consistent with the many discussion boards that mention this exact issue.

NHTSA ID 11545678 · filed Sep 20, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Tires & wheels

Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.

3
reports

From owner reports, verbatim

LEXUS RX 450H. 2010. WAS PURCHASED BRAND NEW FROM THE DEALERSHIP. ALL MAINTENANCE WAS PERFORMED AT THE SAME DEALERSHIP THE CAR WAS PURCHASED. SINGLE OWNER. TWENTY MONTHS LATER (AT 34,000 MILES) ALL 4 TIRES ARE NO LONGER GOOD AT THE INNER EDGE. TWO POSSIBILITIES: 1) THE TIRES WERE BAD QUALITY; 2) THE DEALERSHIP FAILED TO BALANCE AND ROTATE THE TIRES. FOR SAFETY, I HAD NO OTHER CHOICE TO CHANGE THEM. I AM VERY DISSATISFIED. *TR

NHTSA ID 10427019 · filed Sep 24, 2011

THE RX450H IS DOWNRIGHT DANGEROUS. THE 4 WHEEL DRIVE DOES NOT SWITCH "ON DEMAND" AS THE ADVERTISING SAYS. I LIVE IN SNOWY MASSACHUSETTS AND DO NOT NEED PERMANENT 4 WHEEL DRIVE, BUT IT IS ESSENTIAL WHEN THE ROADS ARE FULL OF SNOW OR ICE. I WAS PUZZLED AT FIRST THAT THE 4 WHEEL DRIVE ONLY ACTUATED UNDER 25 MPH. I TESTED IT ON SHARP CORNERS IN THE SNOW: THE BACK SLID OUT; AND ON FASTER, GRADUAL CORNERS: THE CAR SIDE SLIPPED. NEVER DID THE 4 WHEEL DRIVE SWITCH ON AND CORRECT THE SLIDE. I LOOKED IN THE MANUAL FOR THE METHOD TO MANUALLY ACTIVATE 4 WHEEL DRIVE BUT COULDN'T FIND IT. I CONTACTED LEXUS. THEY SAID THAT I SHOULD USE THE SNOW SWITCH. THIS IS A MENU ITEM WHICH ANNOYINGLY MUST BE SWITCHED ON EVERY TIME YOU DRIVE. IT DIDN'T WORK AS IT ONLY CHANGES THE GEAR AND ACCELERATION CHARACTERISTICS LIKE ANY OTHER WINTER/SUMMER SWITCH. THEY ALSO SAID THAT IT SHOULD WORK AT HIGH SPEEDS WHEN MORE POWER IS NEEDED. I TRIED THAT AND FOUND THAT AT 60 MPH IF I ABSOLUTELY FLOORED THE ACCELERATOR ON A STEEP HILL THE 4 WHEEL DRIVE WOULD SWITCH ON BRIEFLY. THAT'S HYBRID TECHNOLOGY BEING USED TO REDUCE CONSUMPTION?! I WENT BACK TO MY DEALER: WHAT WAS I DOING WRONG? AFTER TWO MONTHS OF PHONE TAG WITH THE DEALER AND LEXUS, THE DEALER PROMISED TO PICK UP THE CAR AND TEST IT. AFTER A WEEK OF TELEPHONE CALLS THEY SAID THERE WAS NO POINT IN TESTING THE CAR AS IT WAS WORKING "AS DESIGNED". HOWEVER IT WASN'T WORKING AS ADVERTISED WHICH IS THAT THE 4 WHEEL DRIVE WILL COME ON "AS NEEDED". I'D SAY THAT A BROAD SKID IN SNOW IS "AS NEEDED". LEXUS DOES NOT INTEND TO DO ANYTHING ABOUT THIS COMPLAINT. THEY PUT ME ONTO A "BUSINESS DEVELOPMENT" SPECIALIST WHO TRIED TO UPSELL ME ON A NON-HYBRID 4X4 WHICH HE SAID HAD "A NON SLIP DIFFERENTIAL" AND WOULD THEREFORE HAVE BETTER HANDLING. I CONSIDER IT VERY DANGEROUS THAT A DRIVER THINKS THEY WILL HAVE CONTROL BECAUSE OF LEXUS ADVERTISING AND SALESMAN CLAIMS BUT WILL LIKELY LOOSE CONTROL IN SNOW OR ICE AND CAUSE A SERIOUS ACCIDENT. *TR

NHTSA ID 10311506 · filed Feb 17, 2010

Too few reports in this category for a page of its own — they appear in the full complaint list.

Suspension

Reports naming suspension components — springs, struts, shocks, control arms and related hardware.

3
reports

From owner reports, verbatim

The suv pulls hard to the right when accelerating and has almost driven me off the road. it does it at random times and its super dangerous

NHTSA ID 11722501 · filed Mar 6, 2026

STEERING COLUMN RATTLE NOISE ON VIBRATION WHILE DRIVING ON UNEVEN SURFACES (LIKE PATCHED UP OR REPAIRED ROADS, ROADS WITH GRAVEL ON IT) OR TURNING. THIS ISSUE WAS LISTED IN THE L-SB-0026-11 BUT IT IS EXPIRED NOW. THE STABILITY MAY BE AFFECTED AS YOU DRIVE OVER BUMP EVEN ON LOW SPEED. THIS ISSUE AFFECTED A LOT OF CARS AND LEXUS WAS REPLACING THIS PART AS MENTIONED IN THE BULLETIN. I ACQUIRED THIS CAR RECENTLY AND IT HAS THE PROBLEMATIC STEERING WHEEL THAT THE PREVIOUS OWNER CARED LESS TO REPLACE. I FEEL THIS PART SHOULD BE RECALLED AS LEXUS REFUSED TO TAKE RESPONSIBILITY FOR THIS MANUFACTURING DEFECT (BULLETIN ISSUED) WHEN I RECENTLY CONTACTED CORPORATE OFFICE ABOUT IT LEAVING ME WITH $4000 REPAIR ON THIS LOW MILES CAR FOR ITS AGE WITH THAT SERIOUS PROBLEM THAT IS A PART OF SUSPENSION AND VIBRATES AND MAKES NOISES.

NHTSA ID 11375109 · filed Nov 17, 2020

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

3
reports

From owner reports, verbatim

Water leakage problem in the trunk area causing water buildup on and around the spare tire. A rust issue and potential electric short circuit issue.

NHTSA ID 11434048 · filed Sep 23, 2021

REAR LIFTGATE CLOSES IN THE WINTER TIME WITHOUT WARNING. NO PROBLEM IN WARM MONTHS. HAD COMPLAINED OF THIS ISSUE SINCE I OWNED THE CAR AND WAS ADVISED BY LEXUS DEALER THAT THIS HAPPENS IN THE WINTER. FOR THE MOST PART I WAS ABLE TO CATCH IT BECAUSE IT STARTS BEEPING NOW IT JUST SHUTS AND FELL ON ME WHEN I WAS LOADING GROCERIES AT THE SUPERMARKET. THE PROBLEM APPEARS TO BE AN ISSUE WITH THE STRUTS BECAUSE THE SAME PROBLEM ALSO HAPPENED WITH THE HOOD WHEN I WAS GETTING A JUMP WHEN THE CAR WAS PARKED IN MY DRIVEWAY. LEXUS OFFERED TO PAY FOR THE HOOD STRUTS BUT NOT REAR LIFT GATE. THE ONLY TIME THE HOOD IS OPEN IS WHEN IT'S AT LEXUS FOR SERVICE SO THAT IS NO HELP TO ME.I NO LONGER USE MY TRUNK IN THE WINTER. LEXUS SHOULD MAKE PEOPLE AWARE OF THIS ISSUE. I DON'T HAVE THE DATE BUT LEXUS SHOULD HAVE IT ON FILE.

NHTSA ID 11123572 · filed Aug 30, 2018

Too few reports in this category for a page of its own — they appear in the full complaint list.

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

2
reports

From owner reports, verbatim

The contact owns a 2010 Lexus RX350. The contact stated while driving approximately 65 MPH over thin black ice, the contact lost control of the vehicle, causing the rear passenger's side of the vehicle to crash into the guard rail. The air bags did not deploy. The vehicle was drivable and the contact drove to the orthopedic for medical assistance. The contact sustained a left shoulder joint fracture. A police report was not filed. The vehicle was taken to the dealer, where it was inspected, but the vehicle not diagnosed or repaired. The dealer referred the contact to the manufacturer for assistance. The manufacturer was notified of the failure and referred the contact to the Lexus collision center for assistance. Additionally, the contact stated while driving at an undisclosed speed, another vehicle that was driving at an undisclosed speed rear-ended the vehicle. The air bags did not deploy. A police report was not filed. The vehicle was drivable. The contact sustained lower back pain and sought physical therapy assistance. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the dealer for assistance. The failure mileage was unknown.

NHTSA ID 11612292 · filed Sep 3, 2024

AS I WAS PULLING IN A BUSINESS CENTER TO PARK, I STEP ON THE BRAKE BUT THE CAR WOULD NOT STOP. THE ACCELERATOR CONTINUES AND CAUSED MY CAR TO RUN INTO A POWER BOX AT A BUSINESS. THIS CAUSED THE BUSINESS TO HAVE A POWER OUTAGE FOR THE ENTIRE DAY. THE WEATHER WAS CLEAR. IT WAS 11:30AM. THERE WAS NO CAR AROUND THE PARKING LOT MANY SPACES WERE EMPTIED. IM VERY FORTUNATE THAT THE CAR RAN INTO THE POWER BOX OTHERWISE THE CAR WOULD HAVE DRIVEN ITSELF INTO THE STREET! I'M A GREAT DRIVER FOR MORE THAN 20+ YEARS AND NO TICKETS OR ACCIDENTS. INSURANCE CARRIER HAD DECLARED AS TOTAL LOSS DUE FOR THE IMPACT. AIRBAGS DID NOT DEPLOYED.

NHTSA ID 11245625 · filed Aug 22, 2019

Too few reports in this category for a page of its own — they appear in the full complaint list.

Interior & seats

Reports naming seats, latches, locks, linkages and interior fittings.

2
reports

From owner reports, verbatim

MY LEXUS HAS A MOLD PROBLEM. THEY HAVE BEEN UNABLE TO REMEDY IT, BUT WILL NOT REPLACE THE VEHICLE. THEY HAVE TRIED TO REMEDY THE PROBLEM NO LESS THAN 7 TIMES, BUT CANNOT ELIMINATE THE MOLD. EMPLOYEES OF LEXUS OF GREENWICH HAVE ADMITTED TO ME THAT THEY KNOW THIS IS A RECURRING PROBLEM. YET THEY CONTINUE TO RETURN THE VEHICLE, WITH MOLD, TO THEIR CUSTOMERS. *TR

NHTSA ID 10471324 · filed Aug 17, 2012

THE FRONT HEAD RESTRAINTS WILL NOT LOCK IN THE PROPER POSITION ON MY NEW LEXUS RX350. THEY KEEP RISING UNTIL THEY REACH THE TOP POSITION AND THEY WILL LOCK IN THAT POSITION, BUT NOT IN THE FIRST OR SECOND POSITIONS. THIS IS A SAFETY ISSUE BECAUSE I NEED THEM TO LOCK IN THE FIRST POSITION. THE DEALER SAID THEY WERE OPERATING CORRECTLY AND LEXUS SAID I SHOULD GET A SECOND OPINION FROM A DIFFERENT DEALER. HOWEVER, THE OWNER'S MANUAL ON PAGE 71 STATES: "AFTER ADJUSTING THE HEAD RESTRAINTS, PUSH DOWN ON THEM AND MAKE SURE THEY ARE LOCKED IN POSITION." THEY WILL NOT LOCK IN ANY POSITION BUT THE TOP ONE. *TR

NHTSA ID 10296944 · filed Dec 25, 2009

Too few reports in this category for a page of its own — they appear in the full complaint list.

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

2
reports

From owner reports, verbatim

I AM WRITING TO YOU TO DESCRIBE A VERY DANGEROUS CHARACTERISTIC OF THE LEXUS RX 450H. I AM LUCKY THAT A GUARDRAIL PREVENTED ME FROM GOING OFF A CLIFF AND I AM VERY CONCERNED THAT OTHER DRIVERS WILL NOT BE SO FORTUNATE. WHILE DRIVING DOWN A SLIGHT INCLINE ON AN INCH OF SO OF FRESH SNOW IN INCLINE VILLAGE, NEVADA AT 25 MPH, I FOUND MYSELF OUT OF CONTROL EVEN THOUGH I HAD AT LEAST 200 FEET TO SLOW DOWN FOR A TURN; I HIT A GUARDRAIL AT 15 MPH, CAUSING $20,000 WORTH OF DAMAGE TO MY LEXUS RX 450H. NEEDLESS TO SAY, I TRADED IT THE NEXT DAY FOR AN RX 350H TO AVOID ANOTHER SIMILAR EXPERIENCE. SO HOW DID THE SITUATION I DESCRIBE HAPPEN? WHEN I BRAKED, I QUICKLY NOTICED THAT THE WHEELS WERE LOCKED AND THAT THE STEERING NO LONGER WORKED (I HAVE FORTY YEARS OF EXPERIENCE DRIVING IN SNOW, HAVING BEEN IN SNOW SINCE MY YOUTH IN CANADA) AND I REMOVED MY FOOT FROM THE BRAKE TO REGAIN STEERING CONTROL. UNFORTUNATELY, THE WHEELS REMAINED LOCKED AND I RAN OUT OF TIME. MY LEXUS RX 450H HAD LESS THAN 2,300 MILES AT THE TIME. I ACQUIRED IT WHEN MY LEASE ON MY RX 400H RAN OUT. WHILE I WAS AWARE THAT THE RX 400H LOCKED ITS WHEELS IN SLIPPERY ROAD CONDITIONS (A KNOWN ATTRIBUTE DOCUMENTED IN THE USER MANUAL), I KNEW HOW TO REACT AND NEVER PANICKED WHEN THE WHEELS LOCKED; I SIMPLY REMOVED MY FOOT FROM THE BRAKE AND REGAINED STEERING CONTROL. SO WHAT MAKES THE RX 450H DIFFERENT THAN THE RX 400? A LOOK AT THE POWER GAUGE WHILE DRIVING IDENTIFIES THE DIFFERENCE QUICKLY; IN THE RX 400, THE CHARGING SYSTEM DOES NOT TRY TO CAPTURE ENERGY TO RECHARGE THE BATTERIES EXCEPT WHEN ONE IS TOUCHING THE BRAKE PEDAL, WHILE IN THE RX 450H, THE CHARGING SYSTEM TRIES TO CAPTURE ENERGY AS SOON AS ONE REMOVES HIS/HER FOOT FROM THE GAS PEDAL, NOT WHEN ONE TOUCHES THE BRAKE. FROM AN ENGINEERING PERSPECTIVE, IT MAKES SENSE TO LEVERAGE THE FACT THAT THE DRIVER IS INTENDING TO SLOW AS S/HE HAS REMOVED THEIR FOOT FROM THE GAS PEDAL BUT IT IS A DISASTER WHEN THE ROADWAY IS ICY. *TR

NHTSA ID 10394094 · filed Apr 3, 2011

TL*THE CONTACT OWNS A 2010 LEXUS RX350. THE CONTACT HEARD A RATTLING SOUND IN THE REAR DRIVER'S SIDE WHEEL. THE VEHICLE WAS TAKEN TO THE DEALER ON FOUR SEPARATE OCCASIONS IN ORDER TO CORRECT THE FAILURE, BUT THE NOISE STILL PERSISTS. THE CURRENT AND FAILURE MILEAGES WERE LESS THAN 720. UPDATED 08/04/09. *LJ UPDATED 08/10/09.*JB

NHTSA ID 10277159 · filed Jul 17, 2009

Too few reports in this category for a page of its own — they appear in the full complaint list.

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

2
reports

From owner reports, verbatim

The hybrid transmission failed at 146k and the light went on. When we took it to the dealership, they said that there was metal bits. The owner of the vehicle when into the dealership asking the dealership to set tire pressures and inspect floor mats for proper installation, they performed an inspection and inflated the tires. The owner went in and stated that the check hybrid system warning light is on. Oil pump range/performance. NOTE: no road test performed. Possible additional work needed. Transmission oil pump inoperable due to metal in fluid shorting the pump. The dealership took a fluid sample. They had found lots of metal particles present in the fluid. They recommend replacing the transmission, oil pump, cooler, cooler hoses, and clamps, flush the metal lines.

NHTSA ID 11422337 · filed Jun 25, 2021

ROARING NOISE APPEARED IN 2020 UPON ACCELERATION OF THE VEHICLE FROM THE REAR DIFFERENTIAL THAT BECAME LOUDER OVERTIME WHICH WOULD NOT BE MENTIONED IN THE MULTIPLE INSPECTION REPORTS EVEN WHEN POINTED TO THE SERVICE REPRESENTATIVES ;INSTEAD ONE OF THEM VERBALLY DEMANDED $750 FOR THE DIAGNOSTICS AND $5000 FOR THE REPAIRS! THE OTHER GAVE AN INVOICE ESTIMATE OF $2000 FOR THE PART AND $800 FOR THE LABOR ON 04FEB2021 AS ATTACHED.TOYOTA HAS ISSUES A TECHNICAL BULLETIN T-SB-0080-13 REV 1 DATED JUNE 14, 2013 TITLED "REAR DIFFERENTIAL COUPLING GROWL NOISE" AVAILABLE ONLINE, INDICATING THE COMPANY IS AWARE OF THE PROBLEM IN THE POWERTRAIN'S ELECTRO MAGNETIC COUPLING (THAT CONNECTS TO THE DRIVE SHAFT AND SITS IN FRONT OF REAR DIFFERENTIAL) LEXUS PART # 41303-48010 WHICH IS ALSO USED IN 2006-09 RAV 4 A WITH DIFFERENT TOYOTA PART NUMBER. WHILE THIS ELECTRO MAGNET COUPLING IS LISTED IN THEIR BULLETIN AS USED IN RAV4 2006-12 4WD, IT DID CAUSE AN IDENTICAL GROWLING NOISE IN MY 2010 LEXUS RX 350 AWD WHICH WAS NOTIFIED TO LEXUS CORPORATE HQ VIA AN ONLINE COMPLAINT ON 08FEB21, WHOSE CORPORATE REPRESENTATIVE CALLED SAME DAY TO RESOLVE IT WITHOUT RESOLUTION TO DATE DESPITE A FIRM PROMISE OF CALL BACK WITH RESOLUTION PLAN ON 12FEB21! LEXUS PARTS DEPARTMENT IN BOTH LOCAL DEALERSHIPS, WHEN SPECIFICALLY ASKED TO PIN POINT PARTS REQUIRED TO REPAIR THE COUPLING, DECLINED TO PROVIDE ANY INFORMATION!WHEN ASKED TO SELL PARTS # 90363-95003 & 90363-65004 THEY DECLINED AND SAID "COUPLING" & ITS "PARTS/BEARINGS" ARE 'OUT OF STOCK' IN THE UNITED STATES AND RECOMMENDED ME INSTEAD TO SELL MY FUNCTIONAL AND MAINTAINED VEHICLE AS SOON AS POSSIBLE! BEARING FAILURE DURING DRIVING MAY POTENTIALLY RESULT IN FATAL ACCIDENTS AND PUT LIFE AND SAFETY OF VEHICLE OCCUPANTS AND O! MANUFACTURERS SHOULD ALERT CUSTOMERS ABOUT ANY SUCH DEFECTS IN THE DESIGN OF SUCH PARTS AND PROPOSE RESOLUTION IN A TIMELY FASHION.

NHTSA ID 11396141 · filed Feb 14, 2021

Too few reports in this category for a page of its own — they appear in the full complaint list.

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

1
report

From owner reports, verbatim

I BOUGHT A NEW LEXUS RX 350 2010 ON JULY 3, 2009 AT NEWPORT LEXUS. ON AUGUST 28 WHEN I OPENED THE LEFT REAR DOOR AT NIGHT, WHILE SUV WAS PARKED IN THE GARAGE, TO RETRIEVE ITEM FROM THE BACK SEAT, THE WHOLE LEFT REAR WINDOW SHATTERED IN PIECES. IT WAS QUITE A TRAUMATIC EXPERIENCE FOR ME. IT TOOK ME ALMOST FORTY MINUTES TO CLEAN UP THE FIBROGLASS DEBRIS. PRIOR TO THIS INCIDENT, I WAS NOT AWARE OF ANY DAMAGE TO THE LEFT REAR PASSENGER SIDE WINDOW. I TOOK THE SUV BACK TO DEALER NEXT DAY. THE COMPANY DID REPLACE IT IN GOODFAITH. THEY CLAIMS IT WAS THE FIRST TIME THEY HEARD SUCH AN INCIDENT. I JUST WONDER WHETHER THERE ARE OTHER REPORTED SIMILAR INCIDENT. I DO HAVE GRANDKID OCCASIONALLY SITTING IN THE REAR SEAT. IF COULD POTENTIALLY CAUSE INJURY TO THE PASSENGER SITTING IN THE BACK SEAT. *TR

NHTSA ID 10288972 · filed Oct 19, 2009

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .