Jeep
13,872 MOT tests analysed. sits above the UK fleet average — here's where Grand Cherokees pass, fail, and end up on the retest sheet.
That's 7.8 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
85.3%
Pass-after-fix
2.1%
Fail
12.2%
Avg miles
74,882
Pass + Pass-after-fix + Fail = 100%
Trim variants
Performance by cohort
2 year bands · 13,831 tests
Pass rate climbs 2.6 points across the cohorts — newer Grand Cherokee examples clear the test more reliably than the early cars.
Pass
85.2%
Fail
12.4%
PRS
2.1%
Avg mileage at test
77,489 mi
Pass
87.7%
Fail
9.3%
PRS
2.6%
Avg mileage at test
42,567 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 7,411 MOT tests, the Grand Cherokee returns 84.2% first-time pass — above the UK fleet average. The single most-logged Major fail is windscreen damage. Tyre tread under the limit and brake pads worn below 1.5 mm round out the top three. Average tested mileage sits at 68,843, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
ABI Insurance Group
A high-group car — insurance costs will be significantly above average. Lower groups cost less to insure; UK fleet average is around Group 22.
Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →
34–44
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A suspension joint dust cover severely deteriorated
197 occurrences · 1.4% of tests
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
196 occurrences · 1.4% of tests
Tyre tread depth not in accordance with the requirements
181 occurrences · 1.3% of tests
a brake lining or pad worn below 1.5mm
158 occurrences · 1.1% of tests
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
145 occurrences · 1.0% of tests
A suspension joint dust cover missing or no longer prevents the ingress of dirt etc
108 occurrences · 0.8% of tests
Wiper blade missing or obviously not clearing the windscreen
99 occurrences · 0.7% of tests
Wiper blade defective
92 occurrences · 0.7% of tests
Parking brake efficiency below minimum requirement
92 occurrences · 0.7% of tests
Steering rack gaiter or ball joint dust cover damaged or deteriorated
90 occurrences · 0.6% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 4 failures
£228–£530
If every one of this Grand Cherokee's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. A 2.6-point gap between bands is modest — the year you buy Jeep Grand Cherokee makes a small but real difference to MOT outcomes.
Best band to buy
87.7%
2018–2020 registration
the 2018–2020 band climbs to 87.7% — a 2.6-point improvement. Tests in this band average 42,567 miles — roughly 35K miles fewer on the clock than the older band. Failures here are mostly wear items: does not clear the windscreen effectively, tread depth below requirements of 1.6mm — the structural issues that drag down older examples don't appear in the top-10 for this band. The stricter post-2018 MOT test rules meant manufacturers had to tighten up emissions and electrical checks, but this band still shows far fewer major failures on suspension and bodywork than the older fleet.
Band to be cautious about
85.2%
Pre-2018 registration
On the older band (pre-2018), the data shows a 85.2% pass rate against a fleet average of 87.7% on the newer band. The main culprits logged at test: ball joint dust cover severely deteriorated, damaged but not adversely affecting driver's view, and tread depth below requirements of 1.6mm. Average mileage on test for this band is 77,489 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2018-2020 (87.7% first-time pass). Worst band to avoid: pre-2018 (85.2% pass). That's a 2.6-point spread across 12,853 older tests and 978 newer ones — year of build makes a material difference on this model.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
Item 02 · Amazon UK
Brake pad measurement gauge
Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.
Search Amazon UK
Item 03 · Amazon UK
H7 / W21W bulb pack
A spare-bulb kit lives in the boot. Test morning is not the time to find your stop-lamp's gone.
Search Amazon UK
My Motor World · affiliate
Affiliate links — small commission, no extra cost to you.
Motor World
Motor World Chrysler Jeep Grand Cherokee 2005-2014 Car Floor Mat Set
£32.99
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Motor World
Motor World Jeep Commander 2006- Car Floor Mat Set
£32.99
View at My Motor World →
Motor World
Motor World Jeep Compass 2008-2018 Car Floor Mat Set
£32.99
View at My Motor World →
Motor World
Motor World Jeep Grand Cheroke 2014- Car Floor Mat Set
£32.99
View at My Motor World →
Click Mechanic · affiliate
Affiliate links — small commission, no extra cost to you.
Mobile mechanic · UK-wide
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Recall history
The Grand Cherokee has 34 official UK vehicle recalls covering defect details, remedies, and affected build dates.
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Grand Cherokee and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.
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