Lexus Reliability UK 2026

How reliable is a Lexus? Here’s a data-led reliability profile based on first-time MOT pass rates, model-level breakdown, top failure categories, and a buyer’s verdict.

By Bertram Sargla, Founder, MOT CheckupLast updated: 2026-05-16Data sourced from DVSA

Lexus reliability snapshot: first-time MOT pass rate 84.9% (+20.9 pp vs the UK average of 64%). Across 10 Lexus models, the typical dangerous-defect rate is 1.08% and the average retest rate is 9.3%. Lexus sits well above the UK average on first-time MOT performance. For a buyer focused on long-term reliability, it's a solid badge — though individual mileage and service history still matter more than brand.

Lexus first-time MOT pass rate

84.9%

Implied failure rate: 15.1% · UK average pass rate: 64%

vs UK average

+20.9 pp

Dangerous defects

1.08%

Retest rate

9.3%

How Lexus compares to the UK average

The UK national first-time MOT pass rate is 64%, with about 36% of cars failing on the first attempt.Lexus’s pass rate of 84.9% is 20.9 percentage points above that benchmark. That ’s a brand-average figure — individual Lexus models range from the high 60s to above 90%, so model and age matter more than the badge.

Lexus pass rate84.9%

UK average pass rate64%

Most reliable Lexus models

Ranked by first-time MOT pass rate across our reliability dataset. Restricted to models with meaningful sample size.

Lexus UX

2018–present · sample ≈8k

88.5%

Lexus NX

2014–present · sample ≈15k

87.8%

Lexus CT

2011–2022 · sample ≈15k

87.2%

Most problematic Lexus models

The Lexus models in our dataset with the lowest first-time MOT pass rates. A low pass rate doesn’t mean a bad car — older platforms naturally accumulate wear faster — but it does mean a pre-purchase MOT history check is essential.

Lexus GS

2005–2020 · sample ≈5k

83.8%

Lexus LS

2006–present · sample ≈3k

84.5%

Lexus IS

2005–present · sample ≈18k

85.5%

Run a free MOT check on a specific Lexus

Brand averages set expectations — a single car’s history is what actually decides whether it’s worth buying.

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Top MOT failure categories for Lexus

Aggregated across 10 Lexus models in our dataset, weighted by sample size.

Lamps, reflectors and electrical equipment

12.4%

Suspension

10.9%

Brakes

9.5%

Tyres

8.9%

Exhaust, fuel and emissions

5.8%

Lexus reliability — FAQ

Is Lexus a reliable car brand in the UK?

Lexus's first-time MOT pass rate of 84.9% is above the UK national average of 64%, putting it in the stronger half of brands for MOT reliability. We track 10 Lexus models in our dataset.

What is the most reliable Lexus model for MOT?

Based on first-time MOT pass rates, the most reliable Lexus models in our dataset are: Lexus UX (88.5%), Lexus NX (87.8%), Lexus CT (87.2%). Newer EV variants tend to score highest because they avoid emissions-related failures entirely.

Which Lexus models fail their MOT most often?

In our dataset, the Lexus models with the lowest first-time MOT pass rates are: Lexus GS (83.8%), Lexus LS (84.5%), Lexus IS (85.5%). These tend to be older or higher-mileage models; the same name in a newer year often performs noticeably better.

What are the most common MOT failures on a Lexus?

Aggregated across Lexus models, the most common MOT failure categories are: lamps, reflectors and electrical equipment (12.4%), suspension (10.9%), brakes (9.5%). These align with the national pattern; lighting, suspension, and tyre defects dominate UK MOT failures across most brands.

Check a Lexus’s MOT history

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Source: MOT Checkup analysis of DVSA MOT test data. Brand-average pass rate is sample-size weighted across 10 Lexus models in our dataset. Individual cars vary considerably — always check the specific registration’s MOT history before buying.