2021 Lexus RX 450h: True Cost, Problems & Verdict
69 NHTSA owner complaints · 0 recalls · data-computed verdict. No opinions — public data only.
Owner complaints: 69 filed with NHTSA
Complaints per year on the road: 13.8
What owners say
Verbatim reports filed with the United States safety regulator (NHTSA) by owners of this exact model year. Public record.
The contact owns a 2021 Lexus RX 350. The contact received notification of NHTSA Campaign Number: 23V865000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.
The contact owns a 2021 Lexus RX 350. The contact stated that upon starting the vehicle, the air bag malfunction warning light was illuminated. The contact stated that the SRS alert message was displayed. The passenger’s side seat belt warning light was illuminated for two minutes. The contact received notification of NHTSA Campaign Number: 23V865000 (Air Bags). The local dealer was contacted and confirmed that the r…
The contact owns a 2021 Lexus RX-450H. The contact received notification of NHTSA Campaign Number: 23V865000 (AIR BAGS); however, the part to do the recall repair was not yet available. The contact stated that whenever a handbag was placed on the front passenger’s seat, the air bag warning light illuminated. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of t…
Recalls: 0 campaigns
| Campaign | Component | Summary |
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What it costs to buy — and what owning it really takes
Class-level estimates, priced as a mid-size premium car of its model year, re-priced to your country. Not a quote, not a valuation of one specific car — condition, mileage and options move it. How these are computed.
What it costs to run
EPA combined 30 MPG · estimated annual fuel cost $2,550
Re-priced automatically from your country's retail fuel, electricity and parts indices — change country in the bar at the top. Estimates; see methodology.
What this car's problems cost to fix
Ranked by the components owners of this exact model year actually complain about. Each figure is flat-rate labour hours x the local shop rate plus a parts band — an estimate of what this kind of failure costs, not a quote, and not a prediction that this car will need it. Formula.
- Air Bags47 complaints · typical job: Airbag module, clockspring or sensor replacement (2.5 h labour + parts)$600–$1,700
- Unknown Or Other7 complaints · typical job: Diagnosis and mixed repair (2.0 h labour + parts)$360–$940
- Structure4 complaints · typical job: Body, subframe or corrosion repair (6.0 h labour + parts)$1,070–$2,920
- Forward Collision Avoidance4 complaints · typical job: Radar or camera module replacement and calibration (3.0 h labour + parts)$780–$2,160
- Seat Belts4 complaints · typical job: Pretensioner or retractor replacement (1.5 h labour + parts)$360–$800
- Service Brakes3 complaints · typical job: Pads, rotors and caliper service, both axles (3.0 h labour + parts)$580–$1,140
Other Lexus RX 450h years
FAQ
What is the most common problem with the 2021 Lexus RX 450h?
The most-reported issue in NHTSA complaint data is Air Bags (47 complaints in our indexed sample).
Is the 2021 Lexus RX 450h a good used car to buy?
Our data verdict is BUY with a reliability score of 81/100, computed from 69 NHTSA complaints and 0 recall campaigns. See the verdict card for the top reasons.
How much does it cost to fix the 2021 Lexus RX 450h's most common problem?
47 of the NHTSA complaints filed against the 2021 Lexus RX 450h sit in the Air Bags group — more than any other component on this model year. The representative job there is airbag module, clockspring or sensor replacement: about 2.5 hours of labour plus parts, roughly $600–$1,700 at a US independent shop and re-priced to your country at the top of the page. It is an estimate of what this class of failure costs, not a quote for this car.
What does a 2021 Lexus RX 450h cost to run per year?
About $4,181 a year in fuel or energy plus the maintenance band — roughly $20,908 over five years, before purchase price, insurance and depreciation. Figures come from available EPA fuel-economy data and industry maintenance averages, and are re-priced to your country.
Compare with
Other luxury midsizes of about the same age.
What will a 2021 Lexus RX 450h really cost YOU per year?
Fuel, maintenance band and depreciation — computed from public data in 10 seconds.
Open the true-cost calculatorData sources
Complaints & recalls: NHTSA ·
Fuel economy: EPA fueleconomy.gov ·
Scoring: our published methodology.
Maintenance bands are industry-average estimates (AAA Your Driving Costs, CarMD index) — labeled estimates, not measurements.
Last updated: 2026-10-04.
Moderate evidence — 69 complaints, 0 recalls on record
- 69 NHTSA complaints on record (13.8/yr of exposure) — worse than a typical year of this model (10.8/yr)
- 0 recall campaigns, 0 touching safety-critical systems