Should I check the MOT history before buying a 2021 Toyota Prius?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2021 Toyota Prius?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2021 Toyota Prius?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2021 Toyota Prius reliable?

Based on MOT data from 2,006 vehicles, the 2021 Toyota Prius has a first-time MOT pass rate of 95.3%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2021 Toyota Prius?

The most frequently recorded MOT issues on the 2021 Toyota Prius are: Nearside Front Tyre worn close to legal limit/worn on edge (26.4% of vehicles), Offside Front Tyre worn close to legal limit/worn on edge (26.3% of vehicles), Offside Rear Tyre worn close to legal limit/worn on edge (9.5% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2021 Toyota Prius?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Toyota Prius (2021)

2,006 real MOT outcomes analysed • 95.3% first-time pass rate

2021 Toyota Prius

CarHunch analysed 2,006 real MOT records for the 2021 Toyota Prius. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2021 Toyota Prius is exceptionally reliable, with a first-time MOT pass rate of 95.1%—well above the UK average of 80%—and only 6.4% of vehicles ever developing dangerous defects, which is low enough not to be a buyer concern. The hybrid powertrain delivers consistent results across the cohort, with virtually all 1,991 vehicles analysed running on hybrid-electric technology.

At a median mileage of 37,052 miles for a three-year-old car, these Priuses are running within normal wear patterns, and the average of just 0.21 failures per vehicle confirms that serious problems are rare. The 1.0 advisory per vehicle suggests minor wear items crop up occasionally, but if you're considering a used example, a pre-purchase inspection should focus on hybrid battery health and brake condition rather than systemic faults.

The 2021 Toyota Prius passes its MOT first time more often than most UK vehicles (95.3% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ Around 1 in 20 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

95.3%

UK average ~80%

Better than average

Dangerous (ever)

6.4%

At least once in MOT history

Check this vehicle

Avg failures / car

0.21

Over 3.4 tests on record

Low

Typical mileage

37k

Middle half: 25k–51k

For context

✅ Good baseline reliability. A 95.3% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 2,006 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

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What tends to go wrong

Across 2,006 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 26.4%

Nearside Front Tyre worn close to legal limit/worn on edge · Offside Front Tyre worn close to legal limit/worn on edge · Offside Rear Tyre worn close to legal limit/worn on edge · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Brake wear 6.9%

Front Brake pad(s) wearing thin · Front Brake disc worn, pitted or scored, but not seriously weakened · Rear Brake pad(s) wearing thin · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Wipers & washers 3.9%

Offside Front Windscreen wiper does not clear the windscreen effectively

Other issues 3.5%

Rear Registration plate deteriorated but not likely to be misread

Data covers a 3-year window centred on 2021.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 2,006 Toyota Prius cars.

Before you buy a 2021 Toyota Prius

Based on MOT data from 2,006 vehicles — here's what to check.

📋 Check the full MOT history. 6.4% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Hybrid Electric (Clean) (99%)	1,991	95.3%	0.21

Colour Breakdown

Based on 147,373 Toyota Prius vehicles registered in the UK — across all years. From DVLA registration records.

Silver 26.2%

38,542

White 23.8%

35,145

Black 18.2%

26,828

Grey 11.6%

17,044

Blue 10.3%

15,136

Red 6.7%

9,807

Bronze 1.4%

2,080

Green 0.8%

1,106

Purple 0.4%

620

Brown 0.3%

412

Beige 0.3%

380

Turquoise 0.2%

273

Mileage Distribution

Most 2021 Toyota Prius vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

37,052

typical

25,090

low mileage

51,171

high mileage

Half of all 2021 Toyota Prius vehicles fall between 25,090 and 51,171 miles.

Is the mileage you're seeing normal?

✓ Under 25,090 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 25,090–51,171 miles — normal for age. This is where most 2021 Toyota Priuss sit.

⚠ Over 69,080 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2021 Toyota Prius — Still on the Road

Almost all 2021 Toyota Priuss are still on the road.

Strong survival — 1,942 vehicles still getting MOTs in 2025, 100% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

3.4

Avg MOT tests per vehicle

0.21

Avg failures per vehicle

Avg advisories per vehicle

Other model years — Toyota Prius: All Prius years → Which year to buy? →

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Compare with another model

See how the 2021 Toyota Prius stacks up against a rival.

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