Toyota GR Yaris MOT pass rate & common failures
The Toyota GR Yaris appears in 9,160 MOT tests spanning model years 2020–2024, and 94.2% of them passed. That is 2.8 percentage points better than all cars of a similar age, which fail at 8.6%. Its most common failure areas are tyres, emissions & environmental and visibility.
What the MOT record shows
No single area dominates — tyres (3.7%) and emissions & environmental (1.0%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are catalyst emissions, tread depth and registration plates — catalyst emissions alone was recorded 104 times.
Mileage matters less than usual here: the GR Yaris fails 5.6% of the time in the 0-30k band and 2.7% at 60-90k, a spread of only 2.9 points.
Fuel type barely separates them — hybrid fails 5.8% of the time against 5.8% for petrol.
Tyres is the most common advisory, noted on 12.2% of tests — work that passed today but is likely due soon.
How it compares
By model year
Every GR Yaris model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2020 | 577 | 94.8% | 5.2% | Tyres |
| 2021 | 6,141 | 94.2% | 5.8% | Tyres |
| 2022 | 2,312 | 94.2% | 5.8% | Tyres |
| 2023 | 129 | 94.6% | 5.4% | Tyres |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.7% | 335 |
| 2 | Emissions & environmental | 1.0% | 92 |
| 3 | Visibility | 0.9% | 87 |
| 4 | Lighting & signalling | 0.7% | 68 |
| 5 | Brakes | 0.4% | 41 |
| 6 | Other defects | 0.4% | 38 |
| 7 | Body, structure & corrosion | 0.3% | 28 |
| 8 | Suspension | 0.3% | 27 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 104 |
| 2 | Tread depth | 88 |
| 3 | Registration plates | 69 |
| 4 | Wipers | 66 |
| 5 | Headlamp aim | 58 |
| 6 | Tyre pressure monitoring system | 35 |
| 7 | Washers | 33 |
| 8 | Shock absorbers | 30 |
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 | 12.2% | 1,117 |
| 2 | Brakes | 4.8% | 443 |
| 3 | Other defects | 2.8% | 254 |
| 4 | Visibility | 1.9% | 173 |
| 5 | Suspension | 1.1% | 105 |
| 6 | Body, structure & corrosion | 0.8% | 76 |
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 | 8,183 | 5.6% |
| 30-60k | 937 | 7.1% |
| 60-90k | 37 | 2.7% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 8,274 | 5.8% |
| Hybrid | 886 | 5.8% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 230 | 5.2% |
| 2024 | 3,229 | 5.4% |
| 2025 | 5,700 | 6.0% |
What to check before buying a Toyota GR Yaris
- Tyres (3.7% 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.
- Emissions & environmental (1.0% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
- Visibility (0.9% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
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 Toyota GR Yaris?
94.2% of the 9,160 Toyota GR Yaris MOT tests in this dataset passed, a 5.8% fail rate, across model years 2020–2024.
What does the Toyota GR Yaris most often fail its MOT on?
Tyres, recorded in 3.7% of tests, then emissions & environmental (1.0%).
How much does mileage affect GR Yaris MOT results?
Fail rates run at 5.6% for cars in the 0-30k band and 2.7% for 60-90k, a 2.9-point difference.
Is the hybrid or petrol GR Yaris more reliable at MOT time?
On MOT-testable defects the hybrid fails 5.8% of the time against 5.8% for the petrol. This covers testable items only, not engine or gearbox reliability.
Methodology & source. Based on 9,160 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.