Hummer Common MOT Problems (2026)
Every Hummer model ranked by MOT fail rate, with the most common issues identified for each. Based on 597 real MOT tests.
Average Hummer MOT pass rate: 90%
Check Your Hummer's MOT History
See the specific issues found on your car, plus health score and running cost estimates.
90%
Avg pass rate
10%
Avg fail rate
2
Models tested
Hummer Models with the Most MOT Problems
Highest average fail rates across all tested years
Most Reliable Hummer Models
Lowest average fail rates; the Hummer models least likely to have MOT problems
All Hummer Models by Fail Rate
Every Hummer model and year combination, sorted by fail rate (highest first)
Hummer MOT FAQ
What are the most common MOT problems on Hummer cars?
The most common MOT problems on Hummer cars vary by model and age, but typically include lighting defects, suspension wear, brake component deterioration, and tyre condition issues. Older Hummer diesels are more prone to exhaust and emissions failures. The H3 has the highest average fail rate at 14%.
Which Hummer model is the most reliable?
The most reliable Hummer model in our data is the H2 with an average MOT pass rate of 93%. View all Hummer models for full reliability data.
What is the average MOT pass rate for Hummer?
The average MOT pass rate for Hummer is 90%, based on 597 MOT tests across 2 models. This means about 10% of Hummer cars fail their MOT on the first attempt.
Check a Specific Hummer
Enter any reg plate to see the individual MOT history, defects found, health score, and running cost estimate for that specific car.