Problems · NHTSA complaints

2018 Lexus RX350L problems

Owners filed 26 complaints about the 2018 Lexus RX350L with NHTSA between Dec 2021 and Sep 2026. The most-cited component is service brakes (6).

Complaints
26
Filed with NHTSA
Crashes
3
Reported by owners
Fires
0
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Service brakes6
  2. Engine4
  3. Structure3
  4. Electrical system3
  5. Forward collision avoidance2
  6. Fuel/propulsion system2
  7. Vehicle speed control2
  8. Air bags1
  9. Steering1
  10. Suspension1
  11. Back over prevention1
  12. Visibility/wiper1
  13. Visibility1
  14. Fuel system, gasoline1

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 Oct 28, 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
20211
20222
20233
20248
20257
20265

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

Service brakes

6 reports1 crash
“1. At [XXX] on [XXX], I was pulling into my gym's parking lot, when I stepped on the break to park my car, instead of stopping, the car accelerates rapidly and crashed through the other side of the sidewalk where there were light pole and cement walls, throwing me forward and backward with seat belt on, I was in total shock! 2. My insurance sent a field inspector to the body shop 2X in hope to repair my car but ended up declaring it a Total Loss. 3. Lexus said they would send a field tech to get the EDR (Event Data Recorder) data from my 2018 Lexus RX350 within 30 days, but the results won't be available for 30-45 days after that. Lexus's slow response to this accident concerns and disappoints me b/c it was a serious crash that Lexus should treat it seriously and promptly. 4. The disbelief of a 'young' car with only 12297 miles could have issues like this puzzled me and drove me to do a lot of online research, then I came across this site [XXX] which contains an article titled '10 Common Problems of A Lexus RX350'. Problem #5 described exactly what had happened to me: 'ONE RECURRING PROBLEM THIS CAR HAS IS THAT THE SYSTEM MALFUNCTIONS SEVERELY. THIS TYPICALLY…”
Owner complaint to NHTSAFiled Oct 23, 2024Vehicle speed control, Service brakesCrash reportedODI 11621427

Engine

4 reports
“Car dead stopped two times in the middle of roads. No warning. No signal. Just hard stopped.”
Owner complaint to NHTSAFiled Sep 29, 2026EngineODI 11767867

Structure

3 reports
“The contact owns a 2018 Lexus RX 350. The contact stated that upon arriving to the residence and parking the vehicle, the front driver’s side door failed to open while pulling on the interior door handle. The contact rolled down the window and was able to open the front driver’s side door while pulling the exterior door handle. The vehicle was taken to a local dealer, where it was diagnosed that the front driver’s side door handle needed to be replaced. The vehicle was not repaired. Upon further investigation, the contact related the failure to Lexus Special Service Campaign Number: 20LC02. The manufacturer was made aware of the failure. The failure mileage was approximately 47,518.”
Owner complaint to NHTSAFiled Aug 1, 2025StructureODI 11677722

Electrical system

3 reports
“HVAC servo motor failure. There are many complaints on internet if you google. Multiple other lexus models have CSPs regarding same problem too..”
Owner complaint to NHTSAFiled May 21, 2024Electrical systemODI 11589950

Forward collision avoidance

2 reports1 crash
“1. Check engine light comes on. 2. Intelligent collision system (ICS) plashing while driving”
Owner complaint to NHTSAFiled Mar 29, 2026Engine, Back over prevention, Forward collision avoidanceODI 11727736

Fuel/propulsion system

2 reports
“The fuel pump sensor electrically shorted. The assembly failed. (tube assembly, fuel suction w/ pump and gage), gasket, fuel suction tube set. It is available for inspection. The car could stall at any time because the fuel pump sensor cannot accurately determine the fuel level or how much fuel is being injected into the engine. There was a warning light. Lexus covered two other fuel pump safety issues for this make and model (2018 RX 450h), one under a manufacturer recall and one through a customer support program. This is a THIRD defect with the fuel pumps on these vehicles for which Lexus has NOT offered coverage or notified its customers.”
Owner complaint to NHTSAFiled May 17, 2025Fuel/propulsion systemODI 11661605
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.