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
01 —By component

Complaints by component

One complaint can cite several components
  1. Engine16
  2. Service brakes12
  3. Air bags10
  4. Vehicle speed control8
  5. Power train7
  6. Structure7
  7. Electrical system4
  8. Engine and engine cooling3
  9. Fuel/propulsion system2
  10. Suspension1
  11. Steering1
  12. Wheels1
  13. Tires1
  14. 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
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20113
20127
20131
20143
20152
20165
20172
20186
20197
20203
20216
20223
20232
20244

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.

03 —Owner reports

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…”
Owner complaint to NHTSAFiled Mar 14, 2024EngineODI 11577357

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.”
Owner complaint to NHTSAFiled May 28, 2021Service brakesODI 11418926

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.”
Owner complaint to NHTSAFiled May 10, 2021Air bagsCrash reportedODI 11415932

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”
Owner complaint to NHTSAFiled Feb 15, 2018Vehicle speed controlCrash reportedODI 11073126

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.”
Owner complaint to NHTSAFiled Apr 25, 2024Power trainODI 11585271

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.”
Owner complaint to NHTSAFiled Jul 15, 2023Electrical system, Structure, EngineFire reportedODI 11532457
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.