Should I check the MOT history before buying a 2020 Lexus Is?

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 2020 Lexus Is?

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 2020 Lexus Is?

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 2020 Lexus Is reliable?

Based on MOT data from 556 vehicles, the 2020 Lexus Is has a first-time MOT pass rate of 93.1%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2020 Lexus Is?

The most frequently recorded MOT issues on the 2020 Lexus Is are: Offside Rear Tyre worn close to legal limit/worn on edge (26.6% of vehicles), Nearside Rear Tyre worn close to legal limit/worn on edge (22.4% of vehicles), Offside Front Tyre worn close to legal limit/worn on edge (18.9% 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 2020 Lexus Is?

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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Lexus Is (2020)

556 real MOT outcomes analysed • 93.1% first-time pass rate

2020 Lexus Is

CarHunch analysed 556 real MOT records for the 2020 Lexus Is. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

On this page

AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2020 Lexus IS is genuinely reliable: a 93.1% first-time pass rate beats the UK average of 80% by a clear margin, and only 11.7% have ever recorded a dangerous defect—well below concern level. You're looking at a car that typically sails through its MOT with minimal fuss.

At 30,240 miles median for a four-year-old car, these vehicles are running light, which partly explains the strong pass rate; the low failure rate of 0.3 per vehicle and modest advisory count of 2.4 suggest the IS is simply well-built rather than just driven gently. If you're buying one, check the full service history to confirm it's had regular maintenance, because these cars reward looking after.

The 2020 Lexus Is passes its MOT first time more often than most UK vehicles (93.1% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ About 1 in 12 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

93.1%

UK average ~80%

Better than average

Dangerous (ever)

11.7%

At least once in MOT history

Check this vehicle

Avg failures / car

0.3

Over 3.4 tests on record

Low

Typical mileage

30k

Middle half: 20k–45k

For context

✅ Good baseline reliability. A 93.1% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

🔧 Expect consumable spend. An average of 2.4 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 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 556 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.

A solid choice — agree?

What tends to go wrong

Across 556 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 26.6%

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

Other issues 4.9%

Nearside Rear Child Seat fitted not allowing full inspection of adult belt · Windscreen damaged but not adversely affecting driver's view

Brake wear 4.5%

Front Brake disc worn, but not excessively

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

Data covers a 3-year window centred on 2020.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 556 Lexus Is cars.

Before you buy a 2020 Lexus Is

Based on MOT data from 556 vehicles — here's what to check.

📋 Check the full MOT history. 11.7% 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

Colour Breakdown

Based on 13,942 Lexus Is vehicles registered in the UK — across all years. From DVLA registration records.

Black 24%

3,353

Silver 22.9%

3,193

White 19.3%

2,695

Grey 14.1%

1,971

Red 12.3%

1,709

Blue 6.8%

952

Bronze 0.5%

Mileage Distribution

Most 2020 Lexus Is 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.

30,240

typical

20,276

low mileage

45,134

high mileage

Half of all 2020 Lexus Is vehicles fall between 20,276 and 45,134 miles.

Is the mileage you're seeing normal?

✓ Under 20,276 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.

✓ 20,276–45,134 miles — normal for age. This is where most 2020 Lexus Iss sit.

⚠ Over 60,930 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2020 Lexus Is — Still on the Road

Almost all 2020 Lexus Iss are still on the road.

Strong survival — 514 vehicles still getting MOTs in 2025, 96% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.

MOT History Averages

3.4

Avg MOT tests per vehicle

0.3

Avg failures per vehicle

2.4

Avg advisories per vehicle

Other model years — Lexus Is: All Is years → Which year to buy? →

2013 2014 2015 2016 2017 2018 2019

Or browse all models: Lexus →

Compare with another model

See how the 2020 Lexus Is stacks up against a rival.

A solid choice — agree?