Lexus RX450H Reliability, MOT Pass Rate & Common Faults
Free Lexus RX450H car check
Is the Lexus RX450H reliable? We analysed 114,223 real MOT tests across 8,014 vehicles to find out.
Got a specific Lexus RX450H? Enter the reg for a free check:
The Lexus RX450H is above average for reliability based on real UK MOT data. Common problems include shock absorber has a serious fluid leak, tyre tread depth below requirements of 1.6mm and tyre has a cut in excess of the requirements deep enough to reach the ply or cords. Here's everything you need to know before buying a used Lexus RX450H.
Lexus RX450H Number Plates
Number plates registered to a Lexus RX450H. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Lexus RX450H MOT Pass Rate by Year
How likely is a Lexus RX450H to pass its MOT? Here's the pass rate for each registration year, newest first.
Lexus RX450H Problems — What Goes Wrong?
The most common reasons a Lexus RX450H fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Lexus RX450H Common Faults & Problems
These are the most common serious faults found on Lexus RX450H models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Lexus RX450H Mileage — What's Normal?
How many miles does a typical Lexus RX450H owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Lexus RX450H MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Lexus RX450H year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2019 | 61 | 88.5% | 28,022 | 41,261 | 59,831 |
| 2018 | 65 | 92.3% | 30,108 | 43,668 | 63,952 |
| 2017 | 84 | 92.9% | 33,259 | 48,366 | 68,325 |
| 2016 | 224 | 96.0% | 29,367 | 45,794 | 73,714 |
| 2015 | 171 | 90.6% | 39,088 | 54,947 | 73,628 |
| 2014 | 247 | 87.0% | 37,500 | 53,498 | 69,689 |
| 2013 | 561 | 89.3% | 44,143 | 59,999 | 81,506 |
| 2012 | 14,378 | 86.8% | 44,048 | 66,793 | 92,249 |
| 2011 | 25,124 | 83.9% | 47,843 | 73,484 | 102,884 |
| 2010 | 39,882 | 84.1% | 51,402 | 78,322 | 108,816 |
| 2009 | 20,206 | 83.1% | 53,540 | 82,388 | 115,030 |
| 2008 | 3,806 | 81.7% | 59,754 | 92,910 | 128,317 |
| 2007 | 3,847 | 81.1% | 61,344 | 95,177 | 130,494 |
| 2006 | 3,200 | 80.9% | 61,591 | 95,886 | 132,817 |
| 2005 | 1,912 | 77.6% | 62,394 | 99,478 | 138,496 |
How Long Does a Lexus RX450H Last?
Based on 8,014 Lexus RX450H vehicles on UK roads.
Lexus RX450H Mileage Distribution
Total mileage recorded across all Lexus RX450H MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Lexus RX450H
Based on MOT pass rates across all registration years with sufficient test data.
96.0% MOT pass rate from 224 tests
77.6% MOT pass rate from 1,912 tests
The best year to buy a used Lexus RX450H is 2016, which has the highest MOT pass rate at 96.0% across 224 tests. The 2005 model year has the lowest pass rate at 77.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Lexus RX450H Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Lexus RX450H THIS CAR | 83.9% | 114,223 | 77,489 mi | 20 yrs |
| Lexus IS200 | 75.4% | 546,826 | 87,139 mi | 27 yrs |
| Lexus Ct | 86.8% | 304,916 | 55,351 mi | 15 yrs |
| Lexus RX300 | 79% | 229,652 | 83,424 mi | 26 yrs |
| Mercedes-benz Gle | 89.3% | 182,344 | 44,124 mi | 11 yrs |
Compared to the Lexus IS200 (75.4% pass rate) and the Lexus Ct (86.8% pass rate), the Lexus RX450H sits in the middle of the pack on MOT reliability.
Found a Lexus RX450H you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Lexus RX450HShould you buy a used Lexus RX450H?
The Lexus RX450H has an overall MOT pass rate of 83.9% across 114,223 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Lexus RX450H are shock absorber has a serious fluid leak (999 recorded failures), tyre tread depth below requirements of 1.6mm (759), and tyre has a cut in excess of the requirements deep enough to reach the ply or cords (585). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Lexus RX450H with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Lexus RX450H owner drives around 6,746 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Lexus RX450H models stay on UK roads for around 20 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.