Reliability Report · Multi-Source Data

Lexus Rx400h Reliability

The Lexus Rx400h (current generation) scores 75/100 on our composite reliability index — good territory — drawn from DVSA, NHTSA data.

Composite Score
75
/ 100
Good
Sources: DVSA · NHTSA · latest 2026
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Reliability data covers the model. A VIN history report covers the exact Lexus Rx400h you're looking at — accident and write-off records, mileage rollback, outstanding finance and theft checks.

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Reliability by Source

Each independent organization measures reliability differently. TÜV reports inspection defect rates by age band. ADAC reports pan-European breakdowns per 1,000 vehicles. NHTSA aggregates US consumer complaints. DVSA MOT data is the UK fleet's annual safety inspection — every car 3+ years old. Lower variance across sources = higher confidence in the composite.

NHTSA (US Complaints)
Model years 2003–2013 · 2026 report · n=310
310 complaints across 2 sampled year(s); resolved model="RX400H"
View source ↗
45
/ 100
DVSA MOT (UK Inspections)
Model years 2004–2009 · 2024 report · n=10450
10,450 UK MOT tests · overall 23.7% fail rate vs UK fleet baseline
View source ↗
86
/ 100
DVSA MOT (UK Inspections)
Model years 2003–2013 · 2023 report · n=7196
7,196 UK MOT tests · overall 22.4% fail rate vs UK fleet baseline
View source ↗
86
/ 100

UK MOT Reliability Detail

Based on 10,450 MOT tests in the UK during the 2024 reporting period. Score for each age band reflects this model's fail rate vs the UK-fleet baseline fail rate at the same age — a generation-aware metric.

Age 15–20 yrs
86
23.7% fail vs 38.8% fleet
10,450 tests

Most Common MOT Failure Categories

#1
Ball joint dust cover
1,498
29.2%
#2
Registration plate lamp(s)
1,131
22.0%
#3
Linkage ball joint dust cover
944
18.4%
#4
Headlamp
809
15.7%
#5
Position lamp
756
14.7%

Categories ranked across all MOT tests of this model in the UK during the 2024 period. "Condition" covers cosmetic / wear issues; suspension and braking dominate the rest.

Compare Against Alternatives

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