Problems · NHTSA complaints

2021 Lexus ES 300H problems

Owners filed 2 complaints about the 2021 Lexus ES 300H with NHTSA between Jan 2023 and Sep 2024. The most-cited component is seat belts (1).

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

Complaints by component

One complaint can cite several components
  1. Seat belts1
  2. Electrical system1
  3. Forward collision avoidance1

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
20231
20241

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

Seat belts

1 report
“The contact owns a 2021 Lexus ES 300H. The contact stated while driving 45 MPH and attempting to stop, the front driver’s side seat belt failed to retract. The vehicle was not taken to a dealer or independent mechanic to be diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 60,000.”
Owner complaint to NHTSAFiled Sep 26, 2024Seat beltsODI 11616651

Electrical system

1 report
“On Nov 9, 2022 I first noticed the problem. When I drove back to home Vancouver, WA from California I used cruise control all the way. I was driving at 70 and ahead of me was traffic. The car in front of me slowed down and the cruise control was on which was supposed to detect the car ahead and slowed down using the brakes but it didn’t and my rpm went high almost 4-5. I called the dealership about the incident while on the way. I was asked if there were any issues like lights, warning/message but there was nothing. I have a video about it. When I arrived home turned off the car. Woke up the next day, took it to the dealership and the car is working fine. I showed one of the service reps the video and he stated they cant fix the car because there is no issue coming up in the computer. At the time the mileage was 46,313. After this incident it didn’t happen again. However after 60k miles when I drove over 6-7hrs the problem came up again. I almost got in an accident because the car didn’t slow down and stop. I called the lexus headquarters and they communicated with the same dealership to look into it. My car is at the dealership right now and don't know if they…”
Owner complaint to NHTSAFiled Jan 24, 2023Electrical system, Forward collision avoidanceODI 11503312

Forward collision avoidance

1 report
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.