2017 Jeep Grand Cherokee — MOT failures & pass rate
4,817 MOT tests on the 2017 Jeep Grand Cherokee are in this dataset, and 88.7% of them passed. Large SUVs of a similar age fail at 11.3%, so the 2017 Grand Cherokee sits squarely on the average. Failures cluster in brakes, lighting & signalling and tyres.
What the MOT record shows
No single area dominates — brakes (4.4%) and lighting & signalling (3.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are tread depth, wipers and brake pads — tread depth alone was recorded 102 times.
Mileage is the strongest signal on the record: 5.6% of 0-30k cars fail, rising to 20.6% once past 150k — 3.7× the risk.
Split by fuel, diesel examples fail 3.9pp more often than petrol ones (12.0% vs 8.1%) — worth weighing if you have a choice.
Advisories point at the next bill rather than this one: brakes was flagged on 19.5% of tests without failing them.
The trend is worsening — 11.5% of tests failed in 2021 against 13.5% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Brakes | 4.4% | 214 |
| 2 | Lighting & signalling | 3.6% | 176 |
| 3 | Tyres | 3.4% | 164 |
| 4 | Visibility | 2.7% | 129 |
| 5 | Suspension | 0.7% | 35 |
| 6 | Emissions & environmental | 0.7% | 33 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Tread depth | 102 |
| 2 | Wipers | 96 |
| 3 | Brake pads | 77 |
| 4 | Headlamp aim | 68 |
| 5 | Side repeaters | 66 |
| 6 | Washers | 60 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 19.5% | 940 |
| 2 | Tyres | 17.0% | 821 |
| 3 | Other defects | 5.4% | 262 |
| 4 | Suspension | 4.4% | 213 |
| 5 | Visibility | 2.9% | 138 |
| 6 | Lighting & signalling | 1.5% | 74 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 914 | 5.6% |
| 30-60k | 2,294 | 11.3% |
| 60-90k | 1,167 | 14.1% |
| 90-120k | 343 | 16.9% |
| 120-150k | 64 | 10.9% |
| 150k+ | 34 | 20.6% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 3,967 | 12.0% |
| Petrol | 850 | 8.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 999 | 11.5% |
| 2022 | 955 | 9.6% |
| 2023 | 954 | 9.6% |
| 2024 | 960 | 12.4% |
| 2025 | 949 | 13.5% |
What to check before buying a 2017 Grand Cherokee
On a 2017 Grand Cherokee, brakes is what the MOT record says goes wrong most — it appeared in 4.4% of tests. Check these areas before you commit.
- Brakes (4.4% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Lighting & signalling (3.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (3.4% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2017 Jeep Grand Cherokees pass their MOT?
88.7% of the 4,817 2017 Jeep Grand Cherokee MOT tests in this dataset passed — a 11.3% fail rate.
What is the most common MOT failure on a 2017 Jeep Grand Cherokee?
Brakes, recorded in 4.4% of tests, followed by lighting & signalling (3.6%).
Does the 2017 Grand Cherokee get worse with mileage?
Its MOT fail rate rises from 5.6% in the 0-30k band to 20.6% in the 150k+ band.
Methodology & source. Based on 4,817 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.