Toyota
7,091 MOT tests analysed. sits above the UK fleet average — here's where Prius Pluss pass, fail, and end up on the retest sheet.
That's 7.4 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
85.0%
Pass-after-fix
8.0%
Fail
6.3%
Avg miles
116,599
Pass + Pass-after-fix + Fail = 100%
Could not determine Euro standard — check the V5C or use the government's online ULEZ checker.
Performance by cohort
2 year bands · 7,034 tests
Pass rate climbs 4.3 points across the cohorts — newer Prius Plus examples clear the test more reliably than the early cars.
Pass
83.9%
Fail
7.1%
PRS
8.2%
Avg mileage at test
123,980 mi
Pass
88.2%
Fail
3.7%
PRS
7.4%
Avg mileage at test
94,256 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 3,637 MOT tests, the Prius Plus returns 82.6% first-time pass — above the UK fleet average. The single most-logged Major fail is tyre tread under the limit. A number-plate lamp out and brake pads worn below 1.5 mm round out the top three. Average tested mileage sits at 120,403, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
ABI Insurance Group
Around the UK fleet average for insurance cost. Lower groups cost less to insure; UK fleet average is around Group 22.
Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →
18–26
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A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
106 occurrences · 1.5% of tests
A suspension joint dust cover severely deteriorated
75 occurrences · 1.1% of tests
Tyre tread depth not in accordance with the requirements
70 occurrences · 1.0% of tests
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
64 occurrences · 0.9% of tests
A suspension joint dust cover missing or no longer prevents the ingress of dirt etc
60 occurrences · 0.8% of tests
Wiper blade defective
53 occurrences · 0.7% of tests
A suspension joint dust cover severely deteriorated
52 occurrences · 0.7% of tests
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
46 occurrences · 0.6% of tests
a brake lining or pad worn below 1.5mm
45 occurrences · 0.6% of tests
A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps
44 occurrences · 0.6% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 4 failures
£228–£610
If every one of this Prius Plus's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. A 4.3-point gap between bands means the year you buy Toyota Prius Plus has a real effect on what turns up at the garage.
Best band to buy
88.2%
2018–2020 registration
the 2018–2020 band climbs to 88.2% — a 4.3-point improvement. Tests in this band average 94,256 miles — roughly 30K miles fewer on the clock than the older band. Failures here are mostly wear items: inoperative in the case of a single…, inoperative in the case of multiple lamps… — the structural issues that drag down older examples don't appear in the top-10 for this band. The stricter post-2018 MOT test rules meant manufacturers had to tighten up emissions and electrical checks, but this band still shows far fewer major failures on suspension and bodywork than the older fleet.
Band to be cautious about
83.9%
Pre-2018 registration
On the older band (pre-2018), the data shows a 83.9% pass rate against a fleet average of 88.2% on the newer band. The main culprits logged at test: inoperative in the case of multiple lamps…, ball joint dust cover severely deteriorated, and tread depth below requirements of 1.6mm. Average mileage on test for this band is 123,980 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2018-2020 (88.2% first-time pass). Worst band to avoid: pre-2018 (83.9% pass). That's a 4.3-point spread across 5,368 older tests and 1,666 newer ones — year of build makes a material difference on this model.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
H7 / W21W bulb pack
A spare-bulb kit lives in the boot. Test morning is not the time to find your stop-lamp's gone.
Search Amazon UK
Item 02 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
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Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Prius Plus and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.
