Lexus RX
The Lexus RX MOT pass rate for cars first registered 2016–2021 is 94% across 42,612 official UK DVSA tests. 11,320 MOT defect notes on the Lexus RX come down to one thing: tyres worn close to the legal limit or worn on the edge. That figure sits inside a broader picture most buyers will welcome — a 94% pass rate across 42,612 official DVSA tests for RX models first registered from 2016 to 2021, compiled at make-and-model level rather than from any single registration plate.
Unlike a registration check, this report analyses how thousands of similar Lexus RX models have performed at MOT over time — not just one vehicle.
- 94%
- MOT pass rateshare of recorded tests that passed
- 43k
- MOT tests analysed42,612 official DVSA records
- 33k
- defect notes recorded32,647 · advisory to dangerous
- 2016–21
- registration yearssnapshot 26 September 2026
A fleet outcome for Lexus RX models registered 2016–2021 — not a reliability score, and not a verdict on one car. Always check the specific vehicle.
Key findings
What the MOT record says about the Lexus RX
- Lexus RX recorded a 94% MOT pass rate across 42,612 tests for 2016–2021 registrations.
- 22,704 of 32,647 defect notes are classed as owner maintenance — roughly seven in ten of all recorded items.
- Tyres worn close to the legal limit or worn on the edge account for 11,320 notes, making them the single most frequent MOT finding.
- Systemic faults are uncommon at 259 recorded notes; engine MIL issues (11) and rear brake pipe corrosion (8) rank among the top entries.
- Wear-and-tear notes total 5,843 and rise in later MOT years — from 225 in 2021 to 1,856 in 2025 — as the fleet ages.
Failure breakdown
How Lexus RX MOT failures break down
Share of recorded defect notes by category in this age band — not MOT tests and not number of vehicles.
- 69.5%Owner maintenance22,704 notes
- 17.9%Wear & tear5,843 notes
- 0.8%Systemic259 notes
- 11.8%Other3,841 notes
Advisory
28,018
86% of notes
Minor
1,908
6% of notes
Major
1,611
5% of notes
Dangerous
1,110
3% of notes
Most common owner-maintenance faults
DVSA wording grouped as owner maintenance for this model and age band.
- 1
Tyre worn close to legal limit/worn on edge
11,320 notes5.2.3 (e)What it means, why it happens, what to check
What it means
- Tread is close to (or at) the legal minimum, or wear is concentrated on an edge. That often points to alignment, pressure or suspension issues as well as simple age.
Why it happens
- Under-inflation, poor alignment, aggressive driving or simply delayed replacement push tread below a safe/legal profile.
Buyer tip
- Measure tread across the full width, check tyre age (DOT date) and look for uneven inner-edge wear.
Severity
- Usually maintenance related
- 2
Headlamp aim too low
465 notes4.1.2 (a)What it means, why it happens, what to check
What it means
- This MOT defect usually indicates incorrect headlamp alignment following adjustment, suspension movement or repair work.
Why it happens
- Aim drifts after suspension work, bumper repairs, bulb changes or simply from road vibration over time.
Buyer tip
- Check beam alignment during inspection and ask whether the lamps were aimed after any recent suspension or bodywork.
Severity
- Usually maintenance related
- 3
Tyre pressure monitoring system malfunctioning or obviously inoperative
151 notes5.2.3 (h)What it means, why it happens, what to check
What it means
- The tyre pressure monitoring system is reporting a fault or is clearly not working, so you may not get a dashboard warning of under-inflation.
Why it happens
- Flat battery sensors after tyre changes, damaged valves or control-module faults are common.
Buyer tip
- Confirm whether sensors need replacing after recent tyre or wheel work, and check pressures manually anyway.
Severity
- Usually maintenance related
- 4
Rear Shock absorbers has a slightly worn bush
102 notes5.3.2 (c)What it means, why it happens, what to check
What it means
- A damper mounting bush is worn, which can cause knocks, vague handling and accelerated tyre wear.
Why it happens
- Rubber bushes harden and tear with age, road salt and repeated suspension movement.
Buyer tip
- Listen for clunks over speed bumps and have a mechanic check top mounts and lower bushes.
Severity
- Usually maintenance related
- 5
Rear Shock absorbers has light misting of oil
101 notes5.3.2 (b)What it means, why it happens, what to check
What it means
- A damper mounting bush is worn, which can cause knocks, vague handling and accelerated tyre wear.
Why it happens
- Rubber bushes harden and tear with age, road salt and repeated suspension movement.
Buyer tip
- Listen for clunks over speed bumps and have a mechanic check top mounts and lower bushes.
Severity
- Usually maintenance related
- 6
Windscreen washer not working
83 notes3.5 (a)What it means, why it happens, what to check
What it means
- Washer jets are not delivering fluid. Testers need a clear screen; empty reservoirs, blocked jets or failed pumps are common.
Why it happens
- Empty bottles, frozen/blocked jets, split pipes or a failed pump stop fluid reaching the screen.
Buyer tip
- Top up fluid, test the jets on the driveway, and check for cracked bottles or split pipes in the engine bay.
Severity
- Usually maintenance related
- 7
Seat belt webbing slightly damaged or frayed
15 notes7.1.2 (b)What it means, why it happens, what to check
What it means
- Seat-belt webbing is frayed or lightly damaged, which can weaken the belt in a crash.
Why it happens
- Abrasion at guides, trapped belts or age fray the webbing fibres.
Buyer tip
- Pull each belt fully out and inspect for cuts, fraying and weak retraction.
Severity
- Usually maintenance related
- 8
Reversing lamp inoperative
14 notes4.6.1 (a)What it means, why it happens, what to check
What it means
- This wording appears on DVSA MOT records for this model. It flags a tester-observed defect or advisory that can affect safety, legality or a future pass.
Why it happens
- These issues often build up when routine checks are skipped between services — tyres, lamps and washers are typical examples.
Buyer tip
- Ask the seller for invoices covering this item, and have an independent inspector confirm whether it is still present.
Severity
- Usually maintenance related
Most common wear & tear faults
DVSA wording grouped as wear and tear for this model and age band.
- 1
Suspension locking device missing lower ball joint
2 notes5.3.6 (b)What it means, why it happens, what to check
What it means
- This wording appears on DVSA MOT records for this model. It flags a tester-observed defect or advisory that can affect safety, legality or a future pass.
Why it happens
- Components age with mileage and road use, even when a car has been looked after carefully.
Buyer tip
- Ask the seller for invoices covering this item, and have an independent inspector confirm whether it is still present.
Severity
- Usually wear related
- 2
Lower Steering locking device missing ball joint
1 notes2.1.3 (d)What it means, why it happens, what to check
What it means
- The steering lock is missing or ineffective. That affects theft protection and can be an MOT failure item.
Why it happens
- Column locks wear, or aftermarket work interferes with the lock mechanism.
Buyer tip
- Confirm the steering lock engages with the key removed and investigate any aftermarket column work.
Severity
- Usually wear related
Most common systemic faults
DVSA wording grouped as systemic patterns for this model and age band.
- 1
Engine MIL inoperative or indicates a malfunction
11 notes8.2.1.2 (h)What it means, why it happens, what to check
What it means
- The engine management warning lamp is on or not working. Stored faults can affect emissions, drivability and future MOT results.
Why it happens
- Sensors, emissions equipment or wiring faults store codes that illuminate the MIL.
Buyer tip
- Ask for a diagnostic printout and proof that the underlying fault — not just the lamp — was fixed.
Severity
- Often a recurring model pattern
- 2
Rear Brake pipe corroded, covered in grease or other material The front to rear brake pipe has corroded at the rear
8 notes1.1.11 (c)What it means, why it happens, what to check
What it means
- A brake pipe is damaged or heavily corroded. Pipe failure can cause sudden loss of braking effort.
Why it happens
- Road salt, stone chips and age corrode metal pipes, especially along the underbody.
Buyer tip
- Inspect metal pipes along the underbody and near calipers; corroded pipes should be replaced before you rely on the car.
Severity
- Often a recurring model pattern
- 3
Steering locking device missing track rod end
2 notes2.1.3 (d)What it means, why it happens, what to check
What it means
- The steering lock is missing or ineffective. That affects theft protection and can be an MOT failure item.
Why it happens
- Column locks wear, or aftermarket work interferes with the lock mechanism.
Buyer tip
- Confirm the steering lock engages with the key removed and investigate any aftermarket column work.
Severity
- Often a recurring model pattern
Lexus RX research summary
Independent reviews often praise the Lexus RX as a dependable premium SUV, and the MOT record for 2016–2021 examples largely aligns with that narrative. A 94% pass rate across 42,612 tests is a strong result for cars now in the 5–10 year registration band, particularly when cross-shopped against German rivals on reputation alone. Reputation and MOT outcomes can diverge on any model, but here the headline number supports what many buyers already assume about Lexus dependability.
Look beyond the pass rate and the picture becomes more practical. Of 32,647 defect notes, 22,704 are classed as owner maintenance — chiefly tyres (11,320), plus headlamp aim (465), TPMS faults (151), rear shock wear and minor items such as windscreen washers. Systemic issues barely register at 259 notes, while wear-and-tear entries (5,843) climb steadily from 2021 onwards as these cars accumulate miles. For a used buyer, that means the mechanical base appears sound in MOT terms, but forecourt time should focus on tyres, lights, suspension bushes and rear brake pipes — the areas where testers most often leave notes.
What this report cannot tell you
This report describes model-level MOT trends, not the condition of any individual vehicle.
Two identical Lexus RX models can have very different maintenance histories.
Use it to understand common patterns before inspecting a specific car — then check that car’s own MOT history.
Year by year
Recent category counts
Defect-note totals by calendar year in the serving extract (not MOT tests, not vehicles, not a prediction).
| Year | Owner maintenance | Wear & tear | Systemic | Other |
|---|---|---|---|---|
| 2021 | 1,901 | 225 | 26 | 339 |
| 2022 | 2,981 | 430 | 23 | 496 |
| 2023 | 3,706 | 758 | 32 | 516 |
| 2024 | 4,715 | 1,276 | 48 | 640 |
| 2025 | 4,962 | 1,856 | 59 | 734 |
| 2026 | 2,643 | 1,180 | 34 | 412 |
All counts are defect notes.
How we classify MOT faults
We group recorded DVSA defect wording into four research categories to help identify whether issues are more likely to reflect routine maintenance, expected wear, recurring model patterns or miscellaneous inspection outcomes.
- Owner maintenance
- Defects often linked to day-to-day upkeep — tyres, lamps, washers and other items a careful owner can usually prevent or fix promptly.
- Wear & tear
- Age- and mileage-related deterioration that accumulates with normal use, even when a car has been looked after.
- Systemic
- Recurring wording and patterns across the model fleet that may point to design, component or known-model tendencies rather than one careless owner.
- Other
- Inspection outcomes that do not sit cleanly in the three groups above, including mixed or less classifiable defect notes.
Dataset: 42,612 official UK DVSA MOT tests · 32,647 defect notes · 2016–2021 registrations · United Kingdom · snapshot 26 September 2026 · aggregated model-level MOT analysis.
Buying a used Lexus RX: practical MOT checks
- 1Measure tread depth and check for edge wear on all four tyres — worn tyres are the highest-volume MOT note in this dataset at 11,320 entries.
- 2Switch on headlamps and confirm aim looks even; headlamp aim too low was logged 465 times in these records.
- 3Check for a TPMS warning on the dash and verify pressures read correctly — inoperative tyre-pressure monitoring appeared 151 times.
- 4Inspect rear shock absorbers for bush wear or light oil misting, and look at rear brake pipes for corrosion or grease masking — both appear in systemic and maintenance notes.
Frequently asked questions
What is the Lexus RX MOT pass rate for 2016–2021 registrations?
- In Carmotiq's extract, Lexus RX models in this registration band show a 94% MOT pass rate across 42,612 recorded DVSA tests.
What is the most common Lexus RX MOT defect?
- Tyres worn close to the legal limit or worn on the edge lead with 11,320 recorded notes — the single highest-volume item across 32,647 defect entries.
Does the Lexus RX have many systemic MOT faults?
- Systemic defect notes total 259 out of 32,647 — less than 1% of all recorded items. The top entries include engine management lamp issues (11) and rear brake pipe corrosion (8).
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