Lexus GS450H MOT pass rate and common problems
81.7% of 2,115 Lexus GS450H MOT tests pass.
The GS450H passes 81.7% of the time, noticeably below the figure for the average across all Lexus models (88.9%).
The Lexus GS450H has a pass rate of 81.7%, a little higher than the national average for cars (79.2%).
Own this Lexus GS450H?
This is the average across every Lexus GS450H in the dataset. Look up your own registration for its actual MOT history, and a free place to keep its maintenance records.
Have service invoices? Upload and keep them with your car’s history →
How to check and keep your Lexus’s service history →
Pass rate by vehicle age
Pass rate stays relatively stable with age: 81.2% at 10–15 years versus 81.8% at 15+ years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | no tests recorded | 0 | no reading |
| 3–6 years | too few tests (1) | 1 | no reading |
| 6–10 years | too few tests (7) | 7 | no reading |
| 10–15 years | 81.2% | 325 | 102,825 miles |
| 15+ years | 81.8% | 1,782 | 115,575 miles |
Common MOT failure reasons for the Lexus GS450H
The most common reason the Lexus GS450H fails its MOT is lamps, reflectors and electrical equipment — present in 56.2% of failed tests, most often logged as "Not working".
| Category | Share of failed tests | Example |
|---|---|---|
| Lamps, reflectors and electrical equipment | 56.2% | Not working |
| Brakes | 35.2% | Efficiency below requirements |
| Tyres | 28.2% | Tread depth below requirements of 1.6mm |
| Suspension | 27.6% | Has a serious fluid leak |
| Body, chassis, structure | 10.5% | Has a major leak of exhaust gases |
| Noise, emissions and leaks | 10.3% | Inoperative or indicates a malfunction |
| Visibility | 9.9% | Does not clear the windscreen effectively |
| Steering | 2.7% | Ball joint has excessive play |
| Identification of the vehicle | 2.3% | Inscription illegible |
| Road Wheels | 1.6% | Fixing missing |
Buying a used Lexus GS450H: what to check
These checks follow the Lexus GS450H’s own MOT record: the areas it fails on most often, and how that changes as the car gets older. None of them replaces a mechanic’s inspection, but they tell you where to look first.
1. Lights and electrics
Recorded in 56.2% of failed Lexus GS450H MOTs.
Walk round with the lights on: headlights (dipped and main), indicators, brake lights, fog light and number-plate lamp. Check the dashboard warning lights come on with the ignition, then go out once the engine starts.
2. Brakes
Recorded in 35.2% of failed Lexus GS450H MOTs. 8.9% of tests at 15+ years failed on brakes, against 2.8% at 10–15 years.
On the test drive, the car should stop straight without pulling or juddering, and the handbrake should hold it on a slope. Look through the wheels for scored or heavily lipped discs.
3. Tyres
Recorded in 28.2% of failed Lexus GS450H MOTs.
Check tread depth across the whole width of every tyre, including the inner edge. Uneven wear can point to alignment or suspension problems. Look for cuts and bulges in the sidewalls.
4. Suspension
Recorded in 27.6% of failed Lexus GS450H MOTs.
Listen for knocks over bumps and speed humps, and check the car sits level. Push down on each corner: it should settle rather than keep bouncing.
5. Bodywork and corrosion
Recorded in 10.5% of failed Lexus GS450H MOTs.
Look underneath and along the sills for corrosion, especially near suspension and seat-belt mountings. Uneven panel gaps or mismatched paint can indicate accident repair.
Check the car’s own MOT history. Averages describe the model, not the car in front of you. Look up its registration for past failures, advisories that were never fixed, and gaps or dips in the recorded mileage.
Ask for the service history. Invoices show what was done and when; a stamp alone shows less. See how to check Lexus service history and what a service history check can tell you.
Related Lexus models
- Lexus RC — 94.0% pass rate
- Lexus SC430 — 84.8% pass rate
- Lexus LS400 — 81.8% pass rate
- Lexus LS430 — 84.9% pass rate
- Lexus RX350 — 77.5% pass rate
- Lexus LS — 88.9% pass rate
Frequently asked questions
- What is the MOT pass rate for the Lexus GS450H?
- 81.7% of Lexus GS450H MOT tests pass, based on 2,115 tests in the DVSA anonymised MOT tests and results dataset.
- What are the most common MOT failures for the Lexus GS450H?
- The most common reason the Lexus GS450H fails its MOT is lamps, reflectors and electrical equipment — present in 56.2% of failed tests, most often logged as "Not working".
- What are the common problems with the Lexus GS450H?
- Going by its MOT results, the most common problem areas on the Lexus GS450H are lights and electrics; brakes; tyres.
- What should I check when buying a used Lexus GS450H?
- Start with the areas it most often fails its MOT on: lights and electrics; brakes; tyres; suspension; bodywork and corrosion. Then check the specific car's MOT history by registration for failures, advisories and mileage, and ask the seller for service invoices.
- Does this show the Lexus GS450H's service history?
- No — this is MOT test data, which covers roadworthiness, not servicing. A service history is a separate record of maintenance work, which a specific car only has if its owner has kept it. See the Lexus service history guide for how to check and keep one.