What are the common problems with the 15+ year old Toyota Prius?

The top failure areas for the 15+-year-old Toyota Prius are: Lamps & Electrics (12.0% risk), Suspension (6.7% risk), Body & Chassis (4.5% risk).

Toyota Prius MOT Failure Rate — 15+ Years Old

Q: Is a 15+ year old Toyota Prius reliable?

Based on 41,281 MOT tests, 15+-year-old Toyota Prius has a 37.1% failure rate. This is above the UK average of 28%.

37.1%

MOT failure rate for 15+-year-old Toyota Prius vehicles

Based on 41,281 MOT tests

9.1pp above the UK average (28%)

This model shows significant deterioration in this age bracket, with a 37.1% failure rate. Pre-MOT inspection strongly recommended, especially for lamps & electrics.

Component Risk Breakdown (15+ Years)

Which parts of a 15+-year-old Toyota Prius are most likely to cause an MOT failure:

Lamps & Electrics 12.0%

Suspension 6.7%

Body & Chassis 4.5%

Brakes 4.0%

Tyres 3.8%

Visibility 3.5%

Steering 0.6%

How Does This Compare?

Toyota Prius MOT failure rate across all age groups:

Age	Failure Rate	Tests	Worst Area
0-2 years	12.0%	46,890	Lamps & Electrics
3-5 years	11.9%	177,275	Lamps & Electrics
6-10 years	17.8%	263,597	Lamps & Electrics
11-15 years	30.5%	155,622	Lamps & Electrics
15+ years	37.1%	41,281	Lamps & Electrics

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Frequently Asked Questions

Is a 15+ year old Toyota Prius reliable?

15+-year-old Toyota Prius vehicles have a 37.1% failure rate, which is above average. Consider a pre-MOT inspection, particularly checking lamps & electrics.

What are the common MOT failures on a 15+ year old Toyota Prius?

The most common MOT failure areas at this age are:

Lamps & Electrics — 12.0% failure risk
Suspension — 6.7% failure risk
Body & Chassis — 4.5% failure risk

How can I prepare my Toyota Prius for its MOT?

For a 15+-year-old Toyota Prius, focus on: (1) Lamps & Electrics — the most common failure area at this age. (2) Check all lights and bulbs. (3) Inspect tyres for tread depth and damage. (4) Consider a pre-MOT check at a local garage (£20–£40). You can also use our free prediction tool for a personalised risk breakdown.

Other Toyota Prius Age Groups

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Data methodology: Failure rates are weighted averages across all mileage bands for the 15+-year age group, calculated from official DVSA MOT test records. Only combinations with 100+ tests are included. Data covers 142 million MOT tests across the UK.

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