Does the Toyota Prius fail the MOT on lamps, reflectors and electrics more than it should?

The Toyota Prius records 14.61 lamps, reflectors and electrics failure items per 100 initial MOT tests (2019–2024), against 14.32 expected for a car of the same age mix: about as expected for its class and age (the difference is within its interval or under 0.5 items per 100 tests) (+0.29, 95% interval +0.21 to +0.37). It ranks 274 of 729 models on lamps, reflectors and electrics (1 = most failures above expected).

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on lamps, reflectors and electrics · check a Toyota Prius by registration

What exactly fails on lamps, reflectors and electrics?

The most frequent DVSA defect wording in this group on the Toyota Prius is “A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources”, recorded 20,626 times in 2019–2024.

Toyota Prius: most frequent lamps, reflectors and electrics defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources	20,626	2.45
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning	16,169	1.92
Headlamp reflector or lens slightly defective	15,105	1.79
The aim of a headlamp is not within limits laid down in the requirements	14,982	1.78
A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps	10,012	1.19

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 842,178 (initial tests) · Method: failure items (major and minor) grouped by DVSA's defect tree; wordings with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

If a Toyota Prius gets a lamps, reflectors and electrics advisory, how often does it fail next time?

24.3% of Toyota Prius MOTs with a lamps, reflectors and electrics advisory were followed by a fail in the same group at the next MOT, typically 12 months and 7,628 miles later (15,137 advisories followed).

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 15,137 (advisories followed) · Method: the same vehicles followed to their next ordinary MOT · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

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Does the Toyota Prius fail the MOT on lamps, reflectors and electrics more than it should?

What exactly fails on lamps, reflectors and electrics?

If a Toyota Prius gets a lamps, reflectors and electrics advisory, how often does it fail next time?

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Other pages for this model