Lexus Gs450H MOT pass rate & common failures
7,631 MOT tests on the Lexus Gs450H (2003–2021) give it an 83.8% pass rate. Against all cars of a similar age (26.3% fail rate), the Gs450H comes out 10.1pp better. Its most common failure areas are lighting & signalling, tyres and brakes.
Best and worst Gs450H years
Ranked across Gs450H years with at least 1,000 tests. Older cars fail more simply because they are older — compare years close together in age before drawing conclusions.
What the MOT record shows
The strongest year on this record is 2009 (86.0% pass rate); the weakest is 2006 (81.6%). Older cars carry more of the difference than the average implies.
One area stands out: lighting & signalling, recorded in 9.3% of tests against 5.4% for the next-worst category.
At component level the recurring items are headlamp aim, position lamp and shock absorbers — headlamp aim alone was recorded 372 times.
A 150k+ example is materially riskier than a 0-30k one: 18.3% versus 12.0%.
Tyres is the most common advisory, noted on 22.1% of tests — work that passed today but is likely due soon.
How it compares
By model year
Every Gs450H model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2006 | 1,623 | 81.6% | 18.4% | Lighting & signalling |
| 2007 | 2,223 | 82.8% | 17.2% | Lighting & signalling |
| 2008 | 1,978 | 84.3% | 15.7% | Lighting & signalling |
| 2009 | 1,211 | 86.0% | 14.0% | Lighting & signalling |
| 2010 | 396 | 84.3% | 15.7% | Lighting & signalling |
| 2012 | 106 | 94.3% | 5.7% | Tyres |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 9.3% | 711 |
| 2 | Tyres | 5.4% | 411 |
| 3 | Brakes | 5.4% | 409 |
| 4 | Suspension | 4.3% | 330 |
| 5 | Emissions & environmental | 2.4% | 180 |
| 6 | Visibility | 2.3% | 174 |
| 7 | Body, structure & corrosion | 1.8% | 138 |
| 8 | Road wheels | 0.4% | 31 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 372 |
| 2 | Position lamp | 353 |
| 3 | Shock absorbers | 304 |
| 4 | Tread depth | 234 |
| 5 | Headlamp | 226 |
| 6 | Malfunction indicator lamp | 172 |
| 7 | Wipers | 130 |
| 8 | Rbt (sp) | 127 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 22.1% | 1,689 |
| 2 | Brakes | 21.3% | 1,626 |
| 3 | Suspension | 20.9% | 1,593 |
| 4 | Body, structure & corrosion | 8.5% | 650 |
| 5 | Other defects | 6.8% | 515 |
| 6 | Lighting & signalling | 5.1% | 388 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 142 | 12.0% |
| 30-60k | 681 | 12.3% |
| 60-90k | 1,715 | 15.3% |
| 90-120k | 2,089 | 16.7% |
| 120-150k | 1,761 | 16.6% |
| 150k+ | 1,231 | 18.3% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Hybrid | 6,563 | 16.1% |
| Electric | 371 | 19.4% |
| Other | 349 | 16.1% |
| Petrol | 340 | 15.6% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,729 | 16.9% |
| 2022 | 1,640 | 16.2% |
| 2023 | 1,556 | 15.7% |
| 2024 | 1,444 | 16.6% |
| 2025 | 1,262 | 15.4% |
What to check before buying a Lexus Gs450H
- Lighting & signalling (9.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (5.4% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Brakes (5.4% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
What is the MOT pass rate for the Lexus Gs450H?
83.8% of the 7,631 Lexus Gs450H MOT tests in this dataset passed, a 16.2% fail rate, across model years 2003–2021.
What does the Lexus Gs450H most often fail its MOT on?
Lighting & signalling, recorded in 9.3% of tests, then tyres (5.4%).
Which Gs450H years are best and worst for MOT results?
2009 has the best pass rate at 86.0% and 2006 the weakest at 81.6%, from 1,211 and 1,623 tests respectively.
How much does mileage affect Gs450H MOT results?
Fail rates run at 12.0% for cars in the 0-30k band and 18.3% for 150k+, a 6.3-point difference.
Methodology & source. Based on 7,631 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.