Problems · NHTSA complaints
2011 Lexus RX350 problems
Owners filed 54 complaints about the 2011 Lexus RX350 with NHTSA between Jan 2011 and Sep 2024. The most-cited component is engine (16).
Complaints
54
Filed with NHTSA
Crashes
19
Reported by owners
Fires
4
Reported by owners
Injuries
11
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Engine16
- Service brakes12
- Air bags10
- Vehicle speed control8
- Power train7
- Structure7
- Electrical system4
- Engine and engine cooling3
- Fuel/propulsion system2
- Suspension1
- Steering1
- Wheels1
- Tires1
- Equipment adaptive/mobility1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
3
7
1
3
2
5
2
6
7
3
6
3
2
4
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2011 | 3 |
| 2012 | 7 |
| 2013 | 1 |
| 2014 | 3 |
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 7 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 4 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Engine
16 reports1 crash3 fires
“My 2011 Lexus RX350 was running fine as I ran errands for groceries and other items around town one day. Then, out of the blue, I realized that after returning home and parking in my garage, there was a trail of oil in my driveway, leading to my vehicle. I looked under the engine area and noticed a pool of oil. I had a certified mobile mechanic come to my home and provide a diagnosis. This diagnosis was that a hole had formed in the rubber Engine Oil Cooler Line, and drained nearly all the oil in my engine. He mentioned that one more mile and I could have had total engine failure. He proceeded to replace it with a new Genuine Lexus, all metal Oil Cooler Line. I contacted Lexus about this incident, but they provided no compensation for this occurrence, even though there was a short 4-year technical service bulletin they issued barely a year after production, that called out this was indeed a flaw in their design. After doing some research, I see this is a VERY common issue, with many in the past most recent years having this very issue. Yet, Lexus has not recalled this, nor reimbursed those that have suffered from this manufacture defect. I am really hoping that…”
Service brakes
12 reports7 crashes
“While driving Brake & Abs warning lights displayed on the dash with the warning brake malfunction, Took it to the shop they diagnose Bad brake module. My brake pads & rotors and all scedule maintenance uptodate.”
Air bags
10 reports6 crashes
“TL* THE CONTACT OWNS A 2011 LEXUS RX 450H. THE CONTACT STATED WHILE DRIVING AT 30 MPH, THE CONTACT REAR ENDED ANOTHER VEHICLE BUT NONE OF THE AIR BAGS DEPLOYED. THE CONTACT WAS THE ONLY PERSON THAT SUSTAINED INJURIES (BODY SORENESS) BUT DID NOT SEEK MEDICAL TREATMENT. A POLICE REPORT WAS NOT FILED. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED DURING THE INCIDENT. THE VEHICLE WAS TOWED TO THE CONTACTS RESIDENCE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 92,000.”
Vehicle speed control
8 reports7 crashes
“TL* THE CONTACT OWNED A 2011 LEXUS RX350. WHILE PULLING INTO A PARKING LOT, THE VEHICLE ACCELERATED TO 50 MPH. AS A RESULT, THE VEHICLE CRASHED INTO A WALL AND REVERSED AT 50 MPH. THE CONTACT SWITCHED THE GEAR BACK INTO DRIVE AND THE VEHICLE ACCELERATED AGAIN, WHICH CAUSED THE VEHICLE TO CRASH INTO THE WALL AGAIN. THE CONTACT SUSTAINED NECK AND BACK INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS DESTROYED AND TOWED. THE VEHICLE WAS NOT TAKEN TO A DEALER TO BE REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 59,557. *LN UPDATED 10/1/18*JB”
Power train
7 reports2 crashes
“Tranmission failure around 100k miles. Spoke to few others with similar engine and transmission from lexus who had similar issues. This could be a widespread issue. Costs between 6 to 9 thousand dollars to fix.”
Structure
7 reports2 crashes2 fires
“On Saturday July 15, 2023, at between about 8:00 and 8:30 a.m. CDST the vehicle was parked overnight in a garage, spontaneously caught fire and burned and was a total loss. There was a smell I would associate with an electrical fire. People reported hearing a car alarm and a "popping sound" before the fire. The fire department extinguished the fire and had the car towed out of the garage of a condominium association. Fire damage to property (except the subject car) was minimal but there was extensive smoke. In my opinion based on this incident, electric/hybrid cars should not be parked indoors.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.