Lexus RX450H MOT pass rate: 81.1% (6,815 tests, 2025)

The Lexus RX450H passed 81.1% of its 6,815 MOT tests in 2025 — 3.6 points above the UK average of 77.5%. The median tested example was 15 years old with 116,007 miles on the clock.

81.1%Pass rate (2025)

6,815MOT tests analysed

116,007 miMedian mileage at test

15 yrsMedian age at test

How the RX450H compares

Lexus RX450H

81.1%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

Lexus average (all models)

88.0%

What fails most on the Lexus RX450H

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the RX450H:

#	System	Defects recorded	Share
1	Suspension	1,028	35.5%
2	Lamps, reflectors and electrical equipment	687	23.7%
3	Tyres	483	16.7%
4	Brakes	441	15.2%
5	Visibility	152	5.2%
6	Body, chassis, structure	105	3.6%

Pre-MOT checklist for RX450H owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

Bounce each corner and listen for clonks over speed bumps — suspension is this model’s (and the UK’s) top failure system
Walk round with all lights on: one blown bulb is the most avoidable fail there is
Check tread with the 20p test and inspect sidewalls for cracking — tyres close to the limit are the country’s most common advisory
Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
Replace smeared wiper blades and top up washer fluid — both are test items

Check the engine before the tester does

A stored fault code with the engine light on is an automatic Major defect. Scan and clear resolved faults before booking.

Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

RX450H pass rate by registration year

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2009	3,353	81.0%	+14.6 pts	119,895
2010	7,198	81.7%	+14.4 pts	113,680
2011	4,969	82.1%	+13.0 pts	104,841
2012	3,161	86.6%	+15.4 pts	93,026

Check a specific RX450H before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

Other Lexus models

CT87.9% pass rate · 30,360 tests NX92.7% pass rate · 28,217 tests RX93.9% pass rate · 16,281 tests UX96.1% pass rate · 14,352 tests Is90.0% pass rate · 12,847 tests IS25079.7% pass rate · 9,043 tests RX400H76.7% pass rate · 6,749 tests IS20074.3% pass rate · 5,143 tests

FAQs

What is the MOT pass rate for a Lexus RX450H?

In 2025, 81.1% of 6,815 first MOT tests on the Lexus RX450H were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the RX450H fail its MOT on most?

The biggest defect group is suspension (35.5% of its recorded defects), followed by lamps, reflectors and electrical equipment.

Is the Lexus RX450H reliable?

MOT pass rate is one lens on durability: at 81.1% it performs above the national average at a median age of 15 years and 116,007 miles. Always check the individual car's history too.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.