Problems · NHTSA complaints
2014 Lexus RX450H problems
Owners filed 14 complaints about the 2014 Lexus RX450H with NHTSA between Jun 2014 and Sep 2026. The most-cited component is service brakes (2).
Complaints
14
Filed with NHTSA
Crashes
3
Reported by owners
Fires
0
Reported by owners
Injuries
3
People reported injured
Deaths
1
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Service brakes2
- Air bags2
- Fuel/propulsion system2
- Service brakes, hydraulic1
- Structure1
- Tires1
- Power train1
- Lane departure1
- Electrical system1
- Engine1
- Other / unknown4
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 29, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
1
0
0
0
0
0
2
2
2
2
2
2
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 0 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 2 |
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
Service brakes
2 reports
“Vehicle: 2014 Lexus RX 450h Component: ABS / Brake Actuator System I am submitting this complaint regarding a safety-related brake system defect in my 2014 Lexus RX 450h. The vehicle experienced ABS/brake actuator failure consistent with a known defect that was previously addressed by Lexus/Toyota through a Customer Support Program (extended coverage program, not a recall). I was never notified of this program. I have confirmed that Lexus mailed notification to an incorrect address (Temple City), despite the fact that my vehicle registration address has never changed and has always been accurately maintained with the DMV. As a result, I was deprived of the opportunity to repair a known safety-related defect within the coverage period. Key facts: - Brake/ABS actuator system failure occurred at approximately 150,000 miles - Lexus had previously issued a Customer Support Program for this known defect - No notification was received by me during the coverage period - Lexus confirmed notices were sent to an incorrect address - My DMV registration address has remained unchanged I raised this issue directly with Lexus Customer Assistance, including escalation to a…”
Air bags
2 reports2 crashes
“Air bags did not deploy & yes it’s available for inspection. I was in an accident & the vehicle is totaled. Yes, has been inspected & confirmed they did not deploy by VA state police, tow company & insurance company USAA. There were no warnings or other symptoms.”
Fuel/propulsion system
2 reports
“My car stalled in the middle of an intersection. It had to be towed to the Lexus dealer, where it was determined to be a fuel pump malfunction. My car was not subject to the fuel pump recall but it should have been.”
Service brakes, hydraulic
1 report
“The contact owns a 2014 Lexus RX450H. The contact stated that occasionally while depressing the brake pedal or the accelerator pedal or while stopped at a traffic light, there was an abnormal squeaking sound coming from the brake actuator. There was no warning light illuminated. The vehicle was taken to the dealer and the vehicle was diagnosed with a faulty brake actuator. The dealer recommended replacing the brake actuator assembly. The vehicle was not repaired. The manufacturer was notified of the failure and provided the contact with a case number and would respond within 72 hours. The failure mileage was approximately 141,090.”
Structure
1 report
“My front passenger door actuator has failed. This door cannot be locked/unlocked with the remote or by pressing any lock/unlock button. This prevents the driver from being able to lock all the doors or the front passenger from being able to quickly exit the cabin unless the manual unlock switch is known and applied. This is the 5th door actuator that has failed on this vehicle. I'm the original owner and it has 51K miles on it. All 4 doors failed and this is the second time for this particular door since it was replaced some 4 years & 21K miles ago. The problem started a few months ago and is currently intermittent. Being "sometimes" safe is not being safe. I have not had it analyzed at the dealer since I would not bring it there unless I planned to have it fixed. There were no warning signs or lights.”
Tires
1 report
“01-12-2023 side tire blew out, only about 1.5mile drive at 69freeway Sugar land TX 77479. Nice weather , nice road conditions. The tire drove about 10,000.miles with 60,000. Warranty. It is newer tire, less miles because 3years pandemic. 4 new tires ; YOKOHAMA YK740 GTX 105V R19. Invoice cost $784.71 Installed at 12-12-2019 .”
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 29, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.