Lexus Rx400h
Reliability, running costs, and MOT data across 5 years from 13,578 real MOT tests.
Avg Pass Rate
80%
Total Tests
13,578
Best Year
2008 (82%)
Years Covered
5
How reliable is the Lexus Rx400h?
Lexus Rx400h by Year
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About the Lexus Rx400h
The Lexus Rx400h has been tested 13,578 times in 2024 MOT data across 5 model years (2005 to 2009), with an average pass rate of 80%. That's close to the national average of 82%. Available as Hybrid Electric (Clean).
Best and Worst Years
The 2008 model is the most reliable with a 82% pass rate from 3,521 tests. The 2006 model has the lowest at 79%. With just a 3 point spread, the Rx400h is consistently reliable regardless of year.
Reliability Trend
The LEXUS RX400H has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Mileage Across Years
The oldest model in our data (2005) averages 148,000 miles, while the newest (2009) averages 121,674 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.
Compared to the Lexus brand average of 87%, the Rx400h is 7 points lower, placing it among the less reliable Lexus models.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.