Toyota Prius: MOT pass rate and reliability data

The Toyota Prius passes its MOT first time more often than the average UK car, by 9.3 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 157,929 individual Toyota Prius tests. Nothing here is an estimate or a survey.

The numbers

First-time pass rate86%
UK national average76.7%
Difference+9.3 points
Tests analysed157,929
Average mileage at test132,186 miles
Average year of manufacture2014
Reliability rank1,167 of 2,005 models

What this means if you are buying one

A 86% first-time pass rate means roughly 14 in every 100 Toyota Prius presented for MOT fail on the first attempt. That is better than average, so a well-kept example is a reasonably safe used buy. The average Toyota Prius tested had covered 132,186 miles and was built around 2014.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. The Toyota Prius sits 9.3 points above the national average, ranked 1,167 of 2,005 models. On one bought as repairable salvage, the mechanical side is less likely to spring surprises, so your repair estimate should hold up reasonably well.

Before you bid: run the lot through the analyzer, check the car's own record, check the mileage, decode the VIN, and if it carries a marker use the write-off value calculator. Or compare it against another model.

Looking at a specific Toyota Prius rather than the model in general? The free check covers its MOT and mileage history, and the full HPI report confirms the insurance write-off category, outstanding finance and whether it is recorded stolen, from licensed data for 5 credits. Already own one that has been damaged? Work out whether fixing it beats selling it with the repair or scrap calculator, and see the median recorded closing bid for a damaged Toyota Prius: £1,000 at UK salvage auction, from 34 ended listings, not independently confirmed sales.

Most common MOT failures on a Toyota Prius

  1. An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning, 0.8% of tests (1.8x the national rate for this defect)
  2. A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps, 1.3% of tests (1.43x the national rate for this defect)
  3. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 2.4% of tests (1.29x the national rate for this defect)
  4. Tyre tread depth not in accordance with the requirements, 2.4% of tests
  5. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 2.1% of tests
  6. The aim of a headlamp is not within limits laid down in the requirements, 1.8% of tests
  7. A tyre seriously damaged, 1.5% of tests
  8. Wiper blade missing or obviously not clearing the windscreen, 1.5% of tests
  9. a brake lining or pad worn below 1.5mm, 1.4% of tests
  10. A suspension pin, bush or joint excessively worn, 1.3% of tests

From 158,184 DVSA-tracked Toyota Prius tests, 2024. DVSA testers marked 5.2% of these flagged Toyota Prius defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 5.11% nationally.

Most common MOT advisories on a Toyota Prius

An advisory doesn't fail the car - the tester flags it as worth watching, but it still passes. A different list from the failures above: what testers are noting on a Toyota Prius before it actually fails on it.

  1. Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow, 3.6% of tests (3.26x the national rate for this advisory)
  2. The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired, 2.1% of tests (1.4x the national rate for this advisory)
  3. Number plate inscription missing or illegible, 3.3% of tests (1.25x the national rate for this advisory)
  4. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 1.5% of tests (1.17x the national rate for this advisory)
  5. Tyre tread depth not in accordance with the requirements, 17.7% of tests, also fails
  6. A tyre seriously damaged, 8.5% of tests, also fails
  7. Brake disc or drum excessively weakened, insecure or fractured, 7.7% of tests
  8. A suspension pin, bush or joint excessively worn, 6.2% of tests, also fails
  9. a brake lining or pad worn below 1.5mm, 6.1% of tests, also fails
  10. Brake pipe damaged or excessively corroded, 4.8% of tests

From 158,184 DVSA-tracked Toyota Prius tests, 2024.

Toyota Prius pass rate by model year

From its 2004 to its 2023 model year, the Toyota Prius's first-time pass rate has risen 19.1 points, from 74.7% to 93.8%, the usual pattern: a newer model year is a younger car today, so it fails less. First-time pass rate for each Toyota Prius year:

Other Toyota models

Models with a similar pass rate

If this car is a salvage or write-off

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Toyota Prius MOT pass rate badge: 86%

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Toyota Prius most common MOT failure: An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning (0.8% of tests)

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All 2,005 models ranked by MOT pass rate