Toyota Hilux 2020: reliability & common MOT faults

In 2025, 80 in every 100 first MOTs on a 2020 Toyota Hilux were passes. Most common reason for a fail: Number plate lights.

Summary

The 2020 Toyota Hilux follows the pattern of the model years either side.

At a glance

How 4,709 first tests went in 2025.

Passed first time
80 in every 100
Did not pass first time
20 in every 100940 failed first-attempt tests
The typical car
5 yearsabout 55,447 miles
First tests counted
4,709

What failed most often

  1. Number plate lights10 in every 100 failed tests
  2. Windscreen wipers (front)9 in every 100 failed tests
  3. Brake pads (front)9 in every 100 failed tests

How we count this. Data: UK MOT open data, 2025. Only Class 4 cars on their first MOT of the year are counted. A car that fails and is fixed at the test station still counts as a fail in the first-attempt rate. These are raw results, not adjusted for age, mileage, or peer mix. The MOT does not test engine or gearbox internals.

Note:

These are patterns across 2020 Toyota Hilux vehicles in 2025, not a prediction that any one car will have them. Faults are grouped by part of the car. They come from MOT defect codes, not manufacturer bulletins, recalls or a diagnosis of any one car.

Suspension

Two faults. The strongest is the leaf spring (rear): 26 times as often as on similar cars.

Figures below are measured across the 940 failed first attempts in 2025 that had a mileage recorded, which allows a like-for-like comparison.

We only list faults with at least 20 failures and a rate of about 2.0 times that of similar cars, which keeps one-off results out of the list.

Leaf spring (rear)

Failed on 33 first tests26 times as often as similar carsLikely evidence

What it means

Modified spring anchor or shackle brackets with more mounting holes than the chassis are not a reason to reject leaf spring suspension, and neither is a missing bump stop rubber. A fractured main leaf is graded Dangerous. A spring that is fractured or seriously weakened is graded Major.

Coil spring (front)

Failed on 34 first tests2.7 times as often as similar carsPossible evidence

What it means

A missing bump stop rubber is not a reason to fail a coil spring. When the vehicle is jacked and lowered, a spring that does not correctly locate as the suspension returns to its normal running position is rejected as insecurely attached. A missing spring is Major, and graded Dangerous where directional control is affected.

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.

Brakes

Five faults. The strongest is the handbrake lever: 18 times as often as on similar cars.

Handbrake lever

Failed on 45 first tests18 times as often as similar carsLikely evidence

What it means

A parking brake lever pivot or ratchet mechanism that is obviously worn is graded Minor. It is Major when worn to the extent that the brake may inadvertently release, and also when the ratchet is not holding correctly. A lever must have obvious excessive travel before being rejected.

Electronic stability control

Failed on 53 first tests14 times as often as similar carsLikely evidence

What it means

An ESC warning lamp is failed only when the tester is certain it indicates an ESC malfunction, because the lamp takes various forms and the owner's handbook may need checking. The system is also called ESP, VDC or DSC, among many other names. Every failure row is Major, covering the lamp, wheel speed sensors, wiring, other components and the switch.

Brake pedal

Failed on 21 first tests7.8 times as often as similar carsPossible evidence

What it means

A brake pedal rubber worn smooth is not a defect, and nor is a worn design pattern on an aftermarket rubber. A pedal with no rubber is rejected if its grooves or raised grip sections are worn smooth, unless the vehicle was made without them. Insufficient reserve travel is Major, but a vehicle is failed for it only if the pedal or lever is touching the floor or handlebar.

Handbrake efficiency below minimum (roller test)

Failed on 75 first tests5.8 times as often as similar carsLikely evidence

What it means

A parking brake with efficiency below the minimum requirement is Major, and graded Dangerous where efficiency is less than half of the required value. On a roller brake tester, the requirement counts as met if more than half of the wheels of a brake system lock. The check applies only to vehicles whose parking brake was not already tested as the secondary brake.

Brake performance (roller test, rear)

Failed on 42 first tests5.1 times as often as similar carsLikely evidence

What it means

A wheel with no recorded braking effort on the roller test is graded Dangerous. Inadequate effort, a brake grabbing severely, abnormal lag and excessive fluctuation in effort are each Major. So is significant brake effort recorded with no brake applied, which indicates a binding brake.

Also noted as an advisory

Testers also noted it as an advisory, worn but not yet failing, on 27 first tests, 3.2 times as often as on similar cars.

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage. Advisories count notes recorded on failed first tests only.

Lamps and electrical

Three faults. The strongest is the rear fog light: 7.0 times as often as on similar cars.

Rear fog light

Failed on 46 first tests7.0 times as often as similar carsLikely evidence

What it means

A missing obligatory rear fog lamp, one that is not working, or one that does not emit a steady red light is graded Major. A rear fog lamp adversely affected by the operation of any other lamp is Major too. The manual allows it to go out when main beam is switched on or when dipped beam headlamps are switched off.

Number plate lights (rear)

Failed on 95 first tests5.1 times as often as similar carsLikely evidence

What it means

Registration plate lamps must light up the rear registration plate and operate at the same time as the position lamps. A missing or inoperative lamp is Major when the plate has only one lamp or all its lamps are not working, and Minor when the plate has several lamps or light sources and not all have failed. A lamp throwing direct white light to the rear is also Minor.

Individual sidelight or tail light (rear)

Failed on 41 first tests4.5 times as often as similar carsLikely evidence

What it means

A position lamp showing red light to the front or white light to the rear is Major. Rear lamps must show a steady red light, and front ones can show white, predominantly white with a blue tinge, or yellow if combined in a yellow headlamp. With a multiple light source, up to half not working is Minor and more than half is Major.

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.

Advisories

Other things testers noted as worn or close to failing, more often than on similar cars.

An advisory is a note from the tester about something that has not failed yet. It is an early warning, not a fail. Advisories for the faults above are shown with those faults.

Shock absorbers (rear)

Noted on 49 first tests4.4 times as often as similar carsElevated evidence

Data: UK MOT open data, 2025. Counts cover advisories recorded on failed first tests only, compared with cars of the same age and mileage.

MOT pass rates

How first tests ended, and how the pass rates are counted.

Passed first time
80in every 100
Passed on the first test.
Fixed at the station
6in every 100
Failed, then fixed at the test station the same day.
Failed
14in every 100
Did not pass, and were not fixed at the test station.

First-attempt pass 80.0% of 4,709 first tests (2025): only cars that passed first time count. Official-style pass 85.9%: cars fixed at the test station also count as a pass. The 6 fixed and the 14 not fixed make the 20 in every 100 that did not pass first time.

Same model, other years

Passed first time in every 100, all tested in 2025.

40608010020002005201020152020Older cars
406080100200020102020Older cars

Newer cars are younger, so look for a jump rather than the climb.

YearPassed first timeFirst tests
199663 in every 100348
199761 in every 100307
199855 in every 100537
199961 in every 100508
200058 in every 100483
200156 in every 100489
200258 in every 100742
200355 in every 100773
200453 in every 1001,121
200558 in every 100931
200658 in every 100820
200757 in every 1001,475
200856 in every 1001,645
200957 in every 1001,494
201056 in every 1002,040
201156 in every 1003,180
201258 in every 1003,400
201360 in every 1003,546
201463 in every 1004,427
201564 in every 1005,140
201669 in every 1004,151
201775 in every 1004,679
201876 in every 1005,088
201979 in every 1004,802
2020 This car80 in every 1004,709
202182 in every 1007,700
202285 in every 1005,889

If you are buying one

What this year's MOT record means for the decision in front of you.

Mileage matters most on a 2020 Hilux.

Of 2020 Hilux vehicles with under 33,000 miles, 84 in every 100 passed their 2025 MOT first time. With 83,000 miles or more, 74 in every 100 did.

Under 33,000953 tests
84
33,000–48,000948 tests
83
48,000–63,000 Typical car926 tests
80
63,000–83,000955 tests
80
83,000 and over927 tests
74

What to check at your mileage

How often each fault turned up on a failed first test, by the car's mileage. Read it as: what is likely to need looking at on a car like the one in front of you.

Under 33,00048,000–63,00083,000 and over
Number plate lights0.91.84.2
Windscreen wipers (front)2.91.80.9
Brake pads (front)0.51.42.9
Headlight aim1.71.72.3
Handbrake efficiency below minimum (roller test)1.71.61.7

Faults per 100 first tests, by the car's mileage at the test.


When a car fails

40in every 100

of failed cars had one item to fix.

33in every 100

of failed cars had three or more items to fix.

4in every 100

of all first tests had a defect the tester marked dangerous (unsafe to drive away).


Every figure here is a first-attempt MOT rate from DVSA open data for this model line, for cars of this model year tested in 2025. Each mileage band holds a fifth of the tests. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.

FAQs

Short answers about how to read this model-year guide.

The 2020 Toyota Hilux follows the pattern of the model years either side. Its main cause of failure was Number plate lights, about 10 in every 100 failed tests. In 2025, 80.0% of 4,709 first MOTs on the 2020 Toyota Hilux passed first time (PRS: items fixed at the station the same day, counted as a fail). The official-style rate including PRS is 85.9%. Among 940 failed first-attempt MOT tests (test year 2025), Leaf spring (rear) appears more often than on similar cars (3.5% of those tests; 33 observed failures; about 26× more often than similar cars). There is no single reliability score here; this is a pre-purchase checklist built from DVSA open data, not a guarantee for any individual car.
Ranked by how often they were actually recorded, the items that most often failed a 2020 Toyota Hilux at the first attempt were Number plate lights (10.1%), Windscreen wipers (front) (9.3%) and Brake pads (front) (8.8%), each as a share of the year's failed first attempts. That is what goes wrong most often on the car. The common faults table shows a different measure: faults that are unusual compared with similar cars.
Among failed first-attempt tests we highlight patterns that appear more often than on similar cars. Top example: Leaf spring (rear) (3.5% of those tests; 33 observed failures; about 26× more often than similar cars). These are statistical signals, not a diagnosis of any individual car.
Leaf spring (rear) shows up more often than on similar cars (3.5% of those tests; 33 observed failures; about 26× more often than similar cars). That does not prove a design fault. Age, mileage, and how the car was used still matter. Treat it as a pre-purchase checkpoint, not a manufacturer service bulletin.
Common MOT problem areas for the 2020 Toyota Hilux include Leaf spring (rear), Handbrake lever, Electronic stability control. These are the faults that stand out compared with similar cars, not a complete list of what can go wrong on any individual car.
Advisories flag issues noted at the test and are not a fail rate. We show advisory patterns that appear more often than on similar cars among failed first-attempt tests, separate from common failure rows. Use them as early-warning checks, not as a pass/fail score.
This page highlights MOT failure patterns for the 2020 Toyota Hilux (registration year) using UK DVSA open data for the selected test year. Patterns are compared with cars of a similar age and mileage. It is a buyer checklist from MOT defect statistics, not a full service history or manufacturer service-bulletin list.
No. MOT tests do not cover engine internals, gearboxes, or many electronic modules. Patterns here come from MOT defect statistics only and should not be read as engine or gearbox reliability scores.

About this data

How this page is built and what it can (and can't) say.

These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars, not a full reliability score, and not a pass/fail verdict on any individual vehicle.

2024 2025

What we include

UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.

Same-day repairs

PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.

How we compare

We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.

What this does not cover

  • MOTs do not cover engine internals, gearboxes, or many electronics; this is not a full reliability score.
  • Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
  • Age and mileage matching reduces, but does not remove, differences in how cars were used and maintained.
  • If the data for a car is too thin to say anything useful, we say so rather than guess.

Contains public sector information licensed under the Open Government Licence v3.0.

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