Total Complaints
18 filings
LEXUS RX450H · model year
18 NHTSA complaints, 5 crash reports for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2010LEXUSRX450H carries 18 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 5 crashes, 0 fires, 5 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2010 RX450H is electrical system with 3 filings, followed by air bags (3) and engine (3). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 3 investigation files overlapping the 2010 RX450H. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
18 filings
Crashes Reported
5 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 3 |
| AIR BAGS | 3 |
| ENGINE | 3 |
| VEHICLE SPEED CONTROL | 1 |
| FUEL SYSTEM, OTHER | 1 |
| SERVICE BRAKES, HYDRAULIC | 1 |
| SEAT BELTS | 1 |
| SERVICE BRAKES | 1 |
| HYBRID PROPULSION SYSTEM | 1 |
| FUEL/PROPULSION SYSTEM | 1 |
| STEERING | 1 |
| ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS | 1 |
The contact owns a 2010 Lexus RX450H. The contact stated that while driving at an undisclosed speed, the engine cooler line fractured and the vehicle lost oil very quickly. No warning lights were illuminated. The vehicle was towed to the dealer to be diagnosed. The contact was informed that the engine cooler line needed to be replaced. The manufacturer was made aware of the failure, but the vehicle was out of the warranty. The failure mileage was 185,000.
Mileage: 185,000
OUTER MIRROR, DRIVER'S SIDE, TURNS DOWN WHEN PLACED IN REVERSE AND WILL STAY IN THE DOWN POSITION. OCCASIONALLY IT WILL TURN DOWN ON ITS OWN WHEN CHANGING FROM PARK. WHEN GOING TO DRIVE, THERE IS NO WAY TO SEE ONCOMING TRAFFIC ON THE LEFT WITHOUT TURNING HEAD AND LOOKING: SOMETHING A DRIVER ISN'T EXPECTING. THIS ALWAYS OCCURS GOING FROM STATIONARY TO MOTION. OCCURANCE IN RANDOM.
THE STEERING LOCK ACTUATOR FAILED IN THE LOCKED POSITION WHILE THE VEHICLE WAS STATIONARY. ALTHOUGH IN THIS INSTANCE THERE WAS NO SAFETY HAZARD, IT SEEMS POSSIBLE THAT THIS FAILURE COULD HAVE OCCURRED WHILE THE VEHICLE WAS IN MOTION, WHICH WOULD HAVE CAUSED THE STEERING TO LOCK AND CONSEQUENT LOSS OF CONTROL OF THE VEHICLE. I INFORMED LEXUS US ABOUT THIS FAILURE.
Mileage: 101,000
TL *THE CONTACT OWNS A 2010 LEXUS RX450H. WHILE DRIVING 55 MPH, THE OIL FROM THE ENGINE DEPLETED AND THE ENGINE SEIZED WITHOUT WARNING. THE VEHICLE WAS TOWED TO SEWELL LEXUS IN FORT WORTH, TEXAS WHERE IT WAS DIAGNOSED THAT THE OIL COIL HOSE RUPTURED, WHICH DEPLETED ALL OF THE OIL, AND THE ENGINE SEIZED AND FRACTURED. HENDRICK LEXUS KANSAS CITY IN MERRIAM, KANSAS AND THE MANUFACTURER WERE MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 168,022. *TT
Mileage: 168,022
I HAVE BEEN A LOYAL LEXUS OWNER FOR SEVERAL YEARS AND HAVE METICULOUSLY MAINTAINED MY VEHICLE AT ONLY LEXUS DEALERSHIPS. WHILE OPERATING THE VEHICLE 10 DAYS AGO, THE OIL COOLER HOSE BURST, WHICH COULD HAVE RESULTED IN A MAJOR SAFETY ISSUE (ENGINE FAILURE/SEIZURE WHILE DRIVING) WITH CATASTROPHIC ENGINE FAILURE. LEXUS HAS KNOWN ABOUT THIS ISSUE AND HAS COVERED IT FOR MANY OTHER VEHICLES WITH 150K MILES OR LESS, HENCE THE "ENHANCED WARRANTY" ABOUT WHICH I HAD NO KNOWLEDGE. I HAVE 151K MILES AND THEY REFUSE TO COVER IT OR OFFER ANY KIND OF COMPENSATION FOR THE EXPENSE OF REPLACING THE HOSE. THEY DO NOT DEEM IT A SAFETY ISSUE, WHICH IS ABSURD FOR THE REASON STATED ABOVE. APPARENTLY THERE WAS A WARRANTY "ENHANCEMENT" OFFERED A COUPLE OF YEARS AGO, ABOUT WHICH I WAS NEVER MADE AWARE, BY LEXUS OR BY ANY OF THE TECHNICIANS WHO HAVE SERVICED MY CAR OVER THE YEARS. IF LEXUS OFFERED THIS WARRANTY, THEY CLEARLY KNEW THIS WAS A POTENTIAL ISSUE WITH THIS VEHICLE. NOW THAT THE ISSUE HAS HAPPENED
Mileage: 151,000
WE WERE IN A MAJOR ACCIDENT IN MAY OF 2015 AND AIR BAGS EXPLODED AND SHOT FRAGMENTS OUT AT US AND WE HAD TO BE BROUGHT TO ER BY AMBULANCE. AND I HAD TO HAVE SURGERY.
Mileage: 50,000
THE HYBRID COMPUTER SYSTEM SHORTED DUE TO A LEAK WHERE THE ROOF RACK CONNECTS TO THE ROOF. THIS COMPUTER IS BELOW THE REAR SEAT AND IS NEXT TO THE HYBRID BATTERIES. THIS COMPARTMENT SHOULD BE SEALED TO PREVENT WATER INTRUSION, AND IN NO SITUATION SHOULD WATER FROM THE ROOF BE ABLE TO REACH THIS COMPARTMENT. WATER ENTERING THIS AREA IS EXTREMELY DANGEROUS AND COULD CAUSE A FIRE OR THE CAR TO CEASE FUNCTIONING CORRECTLY WHILE IT IS IN MOTION.
Mileage: 61,700
CPSC: LEXUS HYBRID: CONSUMER STATED WHILE DRIVING AT HIGHWAY SPEED, THE ENGINE SHUT DOWN AND THE A WARNING MESSAGE OF HYBRID ENGINE BRAKE AND AWD FAILURE ILLUMINATED ON THE DASHBOARD. THE ACCELERATOR STOPPED FUNCTIONING AND THE CONSUMER HAD TO PULL OVER TO THE SHOULDER. THE GARAGE REPORTED THE FUEL PUMP AND THE FUEL SOLENOID HAD FAILED. BOTH NEEDED TO BE REPLACED ALONG WITH THE VAPOR RECOVERY SYSTEM. *JB
CPSC: LEXUS HYBRID: CONSUMER STATED WHILE DRIVING AT HIGHWAY SPEED, THE ENGINE SHUT DOWN AND THE A WARNING MESSAGE OF HYBRID ENGINE BRAKE AND AWD FAILURE ILLUMINATED ON THE DASHBOARD. THE ACCELERATOR STOPPED FUNCTIONING AND THE CONSUMER HAD TO PULL OVER TO THE SHOULDER. THE GARAGE REPORTED THE FUEL PUMP AND THE FUEL SOLENOID HAD FAILED. BOTH NEEDED TO BE REPLACED ALONG WITH THE VAPOR RECOVERY SYSTEM. *JB
RADIO WILL CHANGE AUTOMATICALLY BY ITSELF FROM RADIO TO OTHER SOURCE CD, CHANGE TO SAT AND EJECT A CD WITHOUT TOUCHING ANYTHING. LEXUS COULDN'T FIND ANYTHING WRONG WHEN TAKEN IN. THEY UPDATED THE FIRMWARE, BUT IT STILL CONTINUES TO CHANGE FROM RADIO TO SAT AND EJECTS CD'S. I ASKED IF THERE WAS A RECALL OR OTHER KNOW COMPLAINTS ABOUT THIS. I WAS TOLD NO BY LEXUS. I SEARCHED ONLINE AND I FIND THIS HAPPENS TO OTHER CUSTOMERS SO I WANTED TO DOCUMENT THIS DEFECT. *TR
Mileage: 39,000
LEXUS RX450 WAS TRAVELING DOWN A ONE-WAY ROAD AND APPROACHED A STOP SIGN GOING 35 MPH. AFTER RUNNING THROUGH THE STOP SIGN DURING LATE HOURS OF THE NIGHT, THE LEXUS DROVE DIRECTLY INTO A DARK PRIVATE PARKING LOT, CONTINUING AT THE 35 MPH, BOUNCING THROUGH A DEEP POTHOLE AT THE PARKING LOT ENTRANCE (BREAKS WERE PUSHED BUT NOT ENGAGED) WHICH LED TO THE COLLISION WITH A PERPENDICULAR, PROPERLY PARKED LIMO. NO BRAKE IMPRESSIONS ON THE GROUND ALTHOUGH BRAKES WERE PUSHED. AIR BAGS DID DEPLOY. PASSENGER WAS KNOCKED OUT, SUSTAINED A CONCUSSION AND HAD TO BE PULLED OUT OF VEHICLE. CAR WAS RETITLED AS SALVAGE, AS WELL AS THE LIMO THAT WAS HIT. *TR
Mileage: 45,000
LEXUS RX450 WAS TRAVELING DOWN A ONE-WAY ROAD AND APPROACHED A STOP SIGN GOING 35 MPH. AFTER RUNNING THROUGH THE STOP SIGN DURING LATE HOURS OF THE NIGHT, THE LEXUS DROVE DIRECTLY INTO A DARK PRIVATE PARKING LOT, CONTINUING AT THE 35 MPH, BOUNCING THROUGH A DEEP POTHOLE AT THE PARKING LOT ENTRANCE (BREAKS WERE PUSHED BUT NOT ENGAGED) WHICH LED TO THE COLLISION WITH A PERPENDICULAR, PROPERLY PARKED LIMO. NO BRAKE IMPRESSIONS ON THE GROUND ALTHOUGH BRAKES WERE PUSHED. AIR BAGS DID DEPLOY. PASSENGER WAS KNOCKED OUT, SUSTAINED A CONCUSSION AND HAD TO BE PULLED OUT OF VEHICLE. CAR WAS RETITLED AS SALVAGE, AS WELL AS THE LIMO THAT WAS HIT. *TR
Mileage: 45,000
TL* THE CONTACT OWNS A 2010 LEXUS RX 450H. THE CONTACT STATED THAT ANOTHER VEHICLE CRASHED INTO THE FRONT PASSENGER 'S SIDE OF THE VEHICLE. THE CONTACT LOST CONTROL OF THE VEHICLE AND CRASHED INTO A UTILITY POLE. THE SEAT BELTS FAILED TO RESTRAIN THE OCCUPANTS AND THE FRONT AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED CHEST INJURIES AS A RESULT. A POLICE REPORT WAS NOT FILED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS DESTROYED AND TOWED TO A SALVAGE LOT. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 40,000. UPDATED 02/11/2014 *BF THE CONSUMER WAS HIT BY A VEHICLE, THAT RAN A RED LIGHT. SHE WAS THEN PUSHED INTO A UTILITY POLE, AND THE FRONT END WAS CRUSHED. THE AIR BAGS DID NOT DEPLOY. ALSO, THE SHOULDER PORTION OF THE SEAT BELT, DID NOT RESTRAIN HER, AND SHE HIT THE STEERING WHEEL.
Mileage: 40,000
TL* THE CONTACT OWNS A 2010 LEXUS RX 450H. THE CONTACT STATED THAT ANOTHER VEHICLE CRASHED INTO THE FRONT PASSENGER 'S SIDE OF THE VEHICLE. THE CONTACT LOST CONTROL OF THE VEHICLE AND CRASHED INTO A UTILITY POLE. THE SEAT BELTS FAILED TO RESTRAIN THE OCCUPANTS AND THE FRONT AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED CHEST INJURIES AS A RESULT. A POLICE REPORT WAS NOT FILED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS DESTROYED AND TOWED TO A SALVAGE LOT. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 40,000. UPDATED 02/11/2014 *BF THE CONSUMER WAS HIT BY A VEHICLE, THAT RAN A RED LIGHT. SHE WAS THEN PUSHED INTO A UTILITY POLE, AND THE FRONT END WAS CRUSHED. THE AIR BAGS DID NOT DEPLOY. ALSO, THE SHOULDER PORTION OF THE SEAT BELT, DID NOT RESTRAIN HER, AND SHE HIT THE STEERING WHEEL.
Mileage: 40,000
1/11/13 - WHILE DRIVING, VARIOUS WARNING INDICATORS ON DASH BEGIN TO FLASH ' CHECK HYBRID SYSTEM, CHECK AWD SYSTEM, AND CHECK ABS, THEN CHECK ENGINE INDICATOR ILLUMINATES. VEHICLE ENGINE BEGINS TO DE-RATE AND THE ACCELERATOR PEDAL BECOMES INOPERABLE. BRAKES STILL FUNCTION. STOPPED VEHICLE, TURNED IT OFF, AND RE-STARTED. ENGINE WAS UNSTABLE AND THE RPM WAS OSCILLATING. THE HYBRID SYSTEM WAS NOT FUNCTIONING. VEHICLE WAS TOWED TO DEALERSHIP. DIAGNOSIS: FAULTY FUEL PUMP. MAINTENANCE ACTION: R&R FUEL PUMP, FILTER, & SUCTION PLATE. VEHICLE WAS RETUNED ON 1/19/13. ON 2/10/13 THE SAME EXACT SITUATION OCCURRED AGAIN. VEHICLE WAS TOWED TO DEALERSHIP. DIAGNOSIS: FAULTY FUEL PUMP/SYSTEM. MAINTENANCE ACTION: PENDING. DEALERSHIP IS WORKING WITH LEXUS ENGINEERS AND TESTING VARIOUS THEORIES. AS OF 2/25/13, THE VEHICLE IS STILL AT DEALERSHIP. ACCORDING TO MAINTENANCE RECORDS, SAME SITUATION OCCURRED ON 8/27/12 (PREVIOUS OWNER). DIAGNOSIS: FAULTY FUEL PUMP. MAINTENANCE ACTION: R&R FUEL
Mileage: 32,669
1/11/13 - WHILE DRIVING, VARIOUS WARNING INDICATORS ON DASH BEGIN TO FLASH ' CHECK HYBRID SYSTEM, CHECK AWD SYSTEM, AND CHECK ABS, THEN CHECK ENGINE INDICATOR ILLUMINATES. VEHICLE ENGINE BEGINS TO DE-RATE AND THE ACCELERATOR PEDAL BECOMES INOPERABLE. BRAKES STILL FUNCTION. STOPPED VEHICLE, TURNED IT OFF, AND RE-STARTED. ENGINE WAS UNSTABLE AND THE RPM WAS OSCILLATING. THE HYBRID SYSTEM WAS NOT FUNCTIONING. VEHICLE WAS TOWED TO DEALERSHIP. DIAGNOSIS: FAULTY FUEL PUMP. MAINTENANCE ACTION: R&R FUEL PUMP, FILTER, & SUCTION PLATE. VEHICLE WAS RETUNED ON 1/19/13. ON 2/10/13 THE SAME EXACT SITUATION OCCURRED AGAIN. VEHICLE WAS TOWED TO DEALERSHIP. DIAGNOSIS: FAULTY FUEL PUMP/SYSTEM. MAINTENANCE ACTION: PENDING. DEALERSHIP IS WORKING WITH LEXUS ENGINEERS AND TESTING VARIOUS THEORIES. AS OF 2/25/13, THE VEHICLE IS STILL AT DEALERSHIP. ACCORDING TO MAINTENANCE RECORDS, SAME SITUATION OCCURRED ON 8/27/12 (PREVIOUS OWNER). DIAGNOSIS: FAULTY FUEL PUMP. MAINTENANCE ACTION: R&R FUEL
Mileage: 32,669
1/11/13 - WHILE DRIVING, VARIOUS WARNING INDICATORS ON DASH BEGIN TO FLASH ' CHECK HYBRID SYSTEM, CHECK AWD SYSTEM, AND CHECK ABS, THEN CHECK ENGINE INDICATOR ILLUMINATES. VEHICLE ENGINE BEGINS TO DE-RATE AND THE ACCELERATOR PEDAL BECOMES INOPERABLE. BRAKES STILL FUNCTION. STOPPED VEHICLE, TURNED IT OFF, AND RE-STARTED. ENGINE WAS UNSTABLE AND THE RPM WAS OSCILLATING. THE HYBRID SYSTEM WAS NOT FUNCTIONING. VEHICLE WAS TOWED TO DEALERSHIP. DIAGNOSIS: FAULTY FUEL PUMP. MAINTENANCE ACTION: R&R FUEL PUMP, FILTER, & SUCTION PLATE. VEHICLE WAS RETUNED ON 1/19/13. ON 2/10/13 THE SAME EXACT SITUATION OCCURRED AGAIN. VEHICLE WAS TOWED TO DEALERSHIP. DIAGNOSIS: FAULTY FUEL PUMP/SYSTEM. MAINTENANCE ACTION: PENDING. DEALERSHIP IS WORKING WITH LEXUS ENGINEERS AND TESTING VARIOUS THEORIES. AS OF 2/25/13, THE VEHICLE IS STILL AT DEALERSHIP. ACCORDING TO MAINTENANCE RECORDS, SAME SITUATION OCCURRED ON 8/27/12 (PREVIOUS OWNER). DIAGNOSIS: FAULTY FUEL PUMP. MAINTENANCE ACTION: R&R FUEL
Mileage: 32,669
TL* THE CONTACT OWNS A 2010 LEXUS RX450 HYBRID. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO THE DEALER FOR REPAIRS UNDER NHTSA CAMPAIGN ID NUMBER: 12V305000 (VEHICLE SPEED CONTROL: ACCELERATOR PEDAL). THE CONTACT STATED THAT THE VEHICLE DID NOT EXHIBIT ANY ACCELERATION FAILURES PRIOR TO THE RECALL REPAIR. THE CONTACT STATED THAT AFTER THE REPAIR WHILE PARKING, THE VEHICLE SUDDENLY ACCELERATED WITHOUT WARNING. THE CONTACT HAD TO PLACE THE VEHICLE INTO NEUTRAL IN ORDER TO STOP THE ACCELERATION FAILURE. THE VEHICLE WAS TAKEN TO THE DEALER BUT HAD NOT BEEN INSPECTED. THE VIN WAS NOT AVAILABLE. THE FAILURE AND THE CURRENT MILEAGES WERE 33,000.
Mileage: 33,000
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.