Toyota Prius MOT Pass Rate
Overall pass rate across all manufacture years, based on 1,376,812 real MOT test results. Failure rate: 21.8%.
Data from official DVSA MOT testing records
Toyota Prius MOT Reliability Overview
The Toyota Prius is one of the most widely tested vehicles in the UK, with 1,376,812 MOT test results recorded in our database spanning 28 manufacture years. It has an overall MOT pass rate of 78.2% and a failure rate of 21.8%, which is well above the UK average of approximately 37%.
Based on this data, the Toyota Prius earns a "Excellent" reliability rating. The average Toyota Prius presents for MOT with approximately 102,285 miles on the clock. Manufacture year matters: 2024 models achieve the highest pass rate at 97.0%, while 1998 models have the lowest at 51.1%. This 45.9 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Toyota Prius is Lamps, reflectors and electrical equipment, affecting 13.1% of all tests. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. The second most common issue is Tyres at 12.6%. Brakes rounds out the top three at 11.4%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Best Year to Buy
Based on MOT data, 2024 models have the highest pass rate at 97.0%.
Based on 2024 MOT test results only — the most recent data available. "Built" = year of manufacture. Cars need their first MOT at 3 years old, so the newest cars shown are from ~3 years ago.
Bar chart showing pass rate by manufacture year from 2004 to 2024
| Built | Pass Rate | Tests | Verdict |
|---|---|---|---|
| 2024 | 97.0% | 1,472 | 🏆 Best |
| 2022 | 93.0% | 980 | 👍 Good |
| 2023 | 92.3% | 652 | 👍 Good |
| 2021 | 91.8% | 4,777 | ⚠️ Fair |
| 2018 | 89.6% | 25,232 | ⚠️ Fair |
| 2020 | 89.0% | 13,673 | ⚠️ Fair |
| 2019 | 88.5% | 26,985 | ⚠️ Fair |
| 2017 | 87.9% | 21,613 | ⚠️ Fair |
| 2016 | 85.2% | 19,928 | ❌ Avoid |
| 2014 | 79.7% | 17,302 | ❌ Avoid |
| 2015 | 79.6% | 16,782 | ❌ Avoid |
| 2013 | 78.6% | 12,641 | ❌ Avoid |
| 2012 | 74.4% | 9,755 | ❌ Avoid |
| 2011 | 69.5% | 8,925 | ❌ Avoid |
| 2010 | 68.5% | 11,696 | ❌ Avoid |
📈 How Each Vintage Ages
Tracking how each manufacture year's MOT pass rate changes as the car ages. Showing 23 vintages — click year chips to highlight.
Multi-line chart showing how different Toyota Prius vintages degrade over time, from age 0 to 21 years.
Only vintages with 100+ tests in at least 3 different test years are shown. Fleet average is the UK-wide pass rate for all cars at each age.
📉 How Age Affects Reliability
MOT failure rate by vehicle age for the Toyota Prius. The dashed red line marks when the manufacturer warranty typically expires (5 years).
Line chart showing MOT failure rate by vehicle age from 3 to 20 years, with warranty expiry marked at 5 years.
💡 What does the warranty cliff mean?
The Toyota Prius shows a moderate increase in MOT failures after warranty. The 25% increase is typical — plan for gradual maintenance cost increases. Peak failure occurs at age 20 (40.1% fail rate).
Note: pass rates may improve for very old vehicles due to survivorship bias — only well-maintained cars remain on the road.
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Lamps, Reflectors And Electrical Equipment | 20.3% | 279,264 |
| 2 | Tyres | 13.0% | 178,855 |
| 3 | Brakes | 11.6% | 160,289 |
| 4 | Suspension | 7.8% | 107,415 |
| 5 | Visibility | 3.4% | 46,566 |
| 6 | Driver's View Of The Road | 2.4% | 32,940 |
| 7 | Body, Chassis, Structure | 1.8% | 25,132 |
| 8 | Non-component Advisories | 1.3% | 17,389 |
| 9 | Noise, Emissions And Leaks | 1.0% | 13,723 |
| 10 | Identification Of The Vehicle | 0.9% | 12,630 |
| 11 | Steering | 0.7% | 9,990 |
| 12 | Registration Plates And Vin | 0.6% | 7,745 |
| 13 | Road Wheels | 0.5% | 7,374 |
| 14 | Seat Belts And Supplementary Restraint Systems | 0.4% | 4,936 |
Failures per 10,000 Miles
avg. 102,285 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Lamps & Electrical | 1.98 | 20.3% | 279,264 |
| Tyres | 1.27 | 13.0% | 178,855 |
| Brakes | 1.14 | 11.6% | 160,289 |
| Suspension | 0.76 | 7.8% | 107,415 |
| Visibility | 0.56 | 5.8% | 79,506 |
| Body & Structure | 0.18 | 1.8% | 25,132 |
| Non-component advisories | 0.12 | 1.3% | 17,389 |
| Noise, emissions and leaks | 0.10 | 1.0% | 13,723 |
| Identification of the vehicle | 0.09 | 0.9% | 12,630 |
| Steering | 0.07 | 0.7% | 9,990 |
| Registration Plates and VIN | 0.05 | 0.6% | 7,745 |
| Wheels | 0.05 | 0.5% | 7,374 |
| Seat Belts | 0.04 | 0.4% | 4,936 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Toyota Prius has 102,285 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Toyota Prius has a mileage-adjusted failure rate of 2.13% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Toyota Prius MOT Data
The Toyota Prius is one of the most widely tested vehicles in the UK, with 1,376,812 MOT test results recorded in our database spanning 28 manufacture years. It has an overall MOT pass rate of 78.2% and a failure rate of 21.8%, which is well above the UK average of approximately 37%.
For Toyota Prius owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on lamps, reflectors and electrical equipment and tyres for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Prius is likely to perform.
Lamps, reflectors and electrical equipment — 13.1% of failures
Lamps, reflectors and electrical equipment issues account for 13.1% of MOT failures on the Toyota Prius. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Tyres — 12.6% of failures
Tyres issues account for 12.6% of MOT failures on the Toyota Prius. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Brakes — 11.4% of failures
Brakes issues account for 11.4% of MOT failures on the Toyota Prius. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Compare Toyota Prius
Frequently Asked Questions
What is the MOT pass rate for the Toyota Prius?
Based on 1,376,812 MOT tests in our database, the Toyota Prius has an overall pass rate of 78.2% (21.8% fail rate).
What are the most common MOT failures on a Toyota Prius?
The top 3 reasons a Toyota Prius fails its MOT are: 1. Lamps, reflectors and electrical equipment (13.1%), 2. Tyres (12.6%), 3. Brakes (11.4%). Check these areas before booking your MOT.
Is the Toyota Prius reliable?
With a 21.8% MOT failure rate, the Prius is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Toyota Prius?
Based on failure data, focus on: Lamps, reflectors and electrical equipment (13.1%); Tyres (12.6%); Brakes (11.4%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.