2006 Lexus RX Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2006 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
- Electrical1020.0%
- Engine714.0%
- Brakes714.0%
- Fuel system612.0%
- Steering510.0%
- Driver assistance510.0%
- Body & structure36.0%
- Interior & seats24.0%
- Powertrain (other)24.0%
- Airbags24.0%
- Other / unspecified12.0%
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
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
From what I have been reading on that year and model, there seems to be major issues with the invertors. Like many I was driving on the highway and the vehicle just quits. This put me and many others in a very dangerous situation and I could have been hit at high rates of speed. If as many people are having these issues, then Lexus needs to step up and recall this part before someone gets killed
There are multiple recalls on my vehicle and I am experiencing all of the recalls Inverter Failer vehicle stalls out alot. Crank shaft pulley is leaking oil and belt from the power steering maybe detached causing vehicle to stall. Inverter Assembly causing the vehicle to stall and become non drivable. Floor carpet cover and retention clips. And my brake master cylinder leaking fluid causing major break problems. Every item i mentioned is recalls for the vehicle i have
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
From what I have been reading on that year and model, there seems to be major issues with the invertors. Like many I was driving on the highway and the vehicle just quits. This put me and many others in a very dangerous situation and I could have been hit at high rates of speed. If as many people are having these issues, then Lexus needs to step up and recall this part before someone gets killed
The power steering and hybrid system failed and vehicle completely stopped in middle of busy freeway with no prior warnings or issues before. The safety of my son and I, and others around me during the abrupt stop of the engine. I could not move out of way. The vehicle has been serviced for this exact issue during a recall campaign lasting from 2011 to 2014. Ten years later and it is still happening! There were NO warning lamps or messages or symptoms prior to this failure. It just passed vehicle inspections for the year
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
Brake system sets a high tone pitch indicating failure accompanied by all Brake, ABS, PS, Traction Control Lights. This is an know failure for Hybrid systems. It can occur completely random, while driving without notice. Complete brake pressure is lost with exception of a hard feel to the pedal that allows some incomplete breaking to occur and can also cause locking of the brakes at slower speeds. We replaced The brake actuator as recommended with factory new in March of 2024 Started much earlier. Problem has returned Summer of 2025.
Brake calipers continuously seize up making vehicle unsafe to drive
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.
From owner reports, verbatim
After adding gasoline to the tank, gasoline begins dripping from the left rear of the vehicle to the rear of the left rear wheel well. This happens even if the tank is only filled to 2/3 of a tank. I have stopped filling up since when the tank is filled up a LARGE amount of gasoline leaks out onto the ground. FIRE HAZARD while parked or driving. I have seen HUNDREDS of reports of this problem reported online.
I am financing a 2006 Lexus rx400h hybrid and the other day I went out to start it up and the light and everything came on but would not display ready and would not start. Check hybrid system with red triangle was on dash display along with several other warning lights, also when I put the key in the ignition it will release in the ACC position. Where I am purchasing the vehicle will not fix it saying my Vin is not part of the recall list and the lexus dealership to me it was to late to have the recalled parts replaced for free. What do I do?
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
The power steering and hybrid system failed and vehicle completely stopped in middle of busy freeway with no prior warnings or issues before. The safety of my son and I, and others around me during the abrupt stop of the engine. I could not move out of way. The vehicle has been serviced for this exact issue during a recall campaign lasting from 2011 to 2014. Ten years later and it is still happening! There were NO warning lamps or messages or symptoms prior to this failure. It just passed vehicle inspections for the year
The Rack and pinion is leaking and needs to be replaced causing the steering to lock
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
2006 Lexus RX 400h didn't stop even after breaks were applied, it did continue to move forward and slowly push another car for about 15 feet until another car hit a pile of dirt.
Dear manager: I have this 2006 LEXUS RX400H which has CHECK VSC SYSTEM and CHECK HYBRID SYSTEM problems. When I was driving on the highway, the cruise control button is unable to turn on, when at speed of 65 MPH it will suddenly stall in the middle of the road and the READY light will be off and the vehicle has to be stopped by the emergency lane which is REALLY DANGEROUS. I have searched online and found out there were many complains about this issue and LEXUS issued a recall for this type of car and the dealer can change the inverter and ICM free of charge. This recall link is as follows: https://static.nhtsa.gov/odi/rcl/2011/RCONL-11V342-6633.pdf So tonight I am sending this message to see if you can help me to solve this problem.
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.
From owner reports, verbatim
My car exploded- huge fire. I was not driving- it had been parked. The fire marshal indicated that it was an electrical problem located near the battery. There we no indicators of any issues. I only had liability on the car- so i am out of luck. but the NYFD inspected. It happened on Wednesday 9/29/21. Was inspected on 9/30.
EARLIER THIS YEAR I NOTICED CRACKS SHOWING UP AROUND MY IGNITION, THOSE CRACKS HAVE SPREAD UP TO THE TOP OF THE DASH ON THE DRIVERS SIDE. NOW, THERE ARE CRACKS ON THE PASSENGER SIDE LEADING UP TO AND AROUND THE AIRBAG. JUST THIS WEEK, I NOTICED THE DASH IS STARTING TO GET TACKY AND DUST IS STARTING TO STICK TO IT. I AM BEGINNING TO BE CONCERNED. ABOUT THE SAFETY AS IT APPEARS THE DASH IS DETERIORATING MORE AND MORE AS THE DAYS GO BY AND AM CONCERNED FOR ANYONE RIDING WITH ME. I UNDERSTAND LEXUS HAS BEEN AWARE OF THIS PROBLEM FOR QUITE SOMETIME BUT HAVE FAILED TO CORRECT THE DEFECTIVE DASHES. *TR
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.
From owner reports, verbatim
THE HEAT CONTROL ON THE DRIVER'S SIDE ABRUPTLY BEGAN TO STAY ON LAST WEEK. I BELIEVE I NOW SMELL A CHEMICAL ODOR ISSUING FROM THE FRONT OF THE CAR.
I STARTED TO SMELL SOMETHING BURNING, AND MY SEAT WARMER LIGHT WOULDN'T TURN OFF. THE SEAT KEPT GETTING HOTTER TO THE POINT IT WAS UNCOMFORTABLY HOT. FORTUNATELY, I WAS ONLY 5 MI AWAY FROM THE DEALERSHIP WHEN I STARTED TO SMELL THE BURNING. DURING THAT TIME, THE PLASTIC UNDER MY SEAT BUBBLED AND WAS WITHIN MINUTES OF CATCHING FIRE ACCORDING TO THE MECHANIC. THE PREVIOUS MORNING I DROVE INTO BOSTON AND WAS STUCK IN TRAFFIC FOR AND HOUR AND 45 MINUTES. HAD THIS PROBLEM OCCURRED ONE DAY EARLIER, I HAVE NO DOUBT THERE WOULD HAVE BEEN A FIRE UNDER MY SEAT. *TR
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.
From owner reports, verbatim
There are multiple recalls on my vehicle and I am experiencing all of the recalls Inverter Failer vehicle stalls out alot. Crank shaft pulley is leaking oil and belt from the power steering maybe detached causing vehicle to stall. Inverter Assembly causing the vehicle to stall and become non drivable. Floor carpet cover and retention clips. And my brake master cylinder leaking fluid causing major break problems. Every item i mentioned is recalls for the vehicle i have
This vehicle seems to have a well-documented problem with water intrusion that damages the ECU and hybrid battery. The 2006 and 2007 RX400h has the HV battery located under the seat, which is the low spot in the rear section of the car. If water is spilled or the body has a water leak, the water will pool at the center of the battery. Lexus considered this, and added a drain under the battery, but the drain has a filter, presumably to keep insects out, and the filter is easily clogged. This, coupled with a pattern problem of split body seams near the rear hatch strut mount causing a water leak in the rear of the car, has created isolation faults in many of the RX400h SUVs. The condition presents as warnings on the instrument cluster and a no-start condition where the vehicle is inoperable. A search for "lexus ECU water intrusion" brings up my vehicle's exact model and year so this is well-documented.
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.
From owner reports, verbatim
I BOUGHT A LEXUS RX400H BACK IN 2013-2014 AND RECENTLY MY CAR EXPERIENCE SOME SERIOUS ISSUES. WHILE DRIVING ON THE HIGHWAY TO TAKE MY SON TO HIS FOOTBALL GAME MY ABS SYSTEM COMPLETELY WENT OUT ON ME ALMOST CAUSING ME TO CRASH. I RECENTLY WENT TO LEXUS TO FIND OUT THE PROBLEM AND WAS TOLD IT WAS MY ACTUATOR. I ASK LEXUS ABOUT A RECALL I WAS INFORMED OF BACK IN 2016-2017 FOR ACTUATOR AND THEY STATED IT NEVER WAS A RECALLED. SINCE I NEVER WAS NOTIFIED AND ONLY HEARD ABOUT IT FROM ANOTHER LEXUS MECHANIC I ASK HIM FOR DOCUMENTS AND HE TRIED TO THROW AWAY THE PAPER THAT SHOWED MY CAR WAS RECALLED FOR THE ACTUATOR, MELTING DASH BOARD AND ECONOMIC LOSS CLASS ACTION LAWSUIT. I NEED HELP FIGURING OUT WHAT I CAN DO TO GET LEXUS TO HONOR THE SAFETY RECALLS ON MY CAR.
CRACKED DASHBOARD ISSUE (AS PER THE SO-CALLED WARRANTY ISSUE PER CSC-10057809-9406). 10-MONTHS AGO I WAS PROMISED PARTS BY LEXUS OF MONTEREY, CA, AND, I'VE SINCE CONTACTED THEM FIVE OR MORE TIMES...NO PARTS ARE FORTHCOMING. THE LEXUS REGIONAL MANAGER OFFERS NO HELP. WHAT CAN I DO?
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.
From owner reports, verbatim
The contact owns a 2006 Lexus RX400H. The contact stated while driving at slow speeds in a parking area, the ABS warning light illuminated. Upon returning and attempting to start the vehicle, the vehicle had electrical power but failed to start. The check hybrid system warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related it to NHTSA Campaign Number: 13V396000 (Hybrid Propulsion System), but the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 227,500.
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
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .