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Common General Motors Unclassified Problems, Faults, and Repair Costs

Every known General Motors Unclassified MOT issue, ranked by how common it is and what it costs to fix. Based on 194 real MOT tests across 2 model years.

Segment: performance | Fuel: Petrol

96%

General Motors Unclassified pass rate

90%

General Motors average

82%

National average

The General Motors Unclassified has an average MOT pass rate of 96%, which is 6 points above the General Motors average and 14 points above the national average.

Check Your General Motors Unclassified's MOT History

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Most Common General Motors Unclassified MOT Issues

Ranked by how likely they are to affect your General Motors Unclassified, with typical repair costs

Brakes

High likelihood

£80 - £450

Typical repair cost

Common advisories:

Brake discs worn, brake pads thin, handbrake adjustment needed

Failure points:

Brake disc excessively worn, brake pipe corroded, brake efficiency below minimum

Suspension

High likelihood

£150 - £600

Typical repair cost

Common advisories:

Suspension arm bush worn, shock absorber misting, spring corroded

Failure points:

Coil spring broken, ball joint excessive play, shock absorber leaking

Lights

High likelihood

£15 - £200

Typical repair cost

Common advisories:

Headlamp aim slightly out, lens deteriorated

Failure points:

Headlamp not working, brake light not functioning, indicator failure

Tyres

High likelihood

£50 - £300

Typical repair cost

Common advisories:

Tyre approaching legal limit, slight damage to sidewall

Failure points:

Tyre below minimum tread depth, tyre has a cut exposing ply

Exhaust & Emissions

High likelihood

£80 - £800

Typical repair cost

Common advisories:

Exhaust mounting corroded, slight exhaust leak

Failure points:

Exhaust emissions exceed limits, catalytic converter efficiency low, DPF warning

Steering

High likelihood

£100 - £500

Typical repair cost

Common advisories:

Track rod end has slight play, steering rack boot deteriorated

Failure points:

Steering rack leaking, track rod ball joint worn beyond limits

Body & Structure

Moderate likelihood

£200 - £1200

Typical repair cost

Common advisories:

Surface corrosion on subframe, slight body panel damage

Failure points:

Structural corrosion, body mounting corroded through, chassis weakness

Windscreen & Wipers

Lower likelihood

£10 - £350

Typical repair cost

Common advisories:

Minor windscreen chip, wiper blade deteriorated

Failure points:

Windscreen crack in swept area, wiper does not clear windscreen

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General Motors Unclassified Reliability by Year

MOT pass rate for each model year, based on real test data

2018
92%
Worst year
2019
100%
Best year
YearFuelEnginePass RateFail Rate
2019Petrol5.7L100%0%
2018Petrol5.7L92%8%

Most Reliable Year

2019

100% pass rate from 56 tests

View 2019 General Motors Unclassified details

Least Reliable Year

2018

92% pass rate from 91 tests

View 2018 General Motors Unclassified details

General Motors Unclassified Running Costs

Want to know the full annual running costs for the General Motors Unclassified? Including fuel, tax, insurance, and predicted repairs based on MOT history.

View General Motors Unclassified Running Costs

General Motors Unclassified FAQ

What are the most common General Motors Unclassified problems?

The most common General Motors Unclassified MOT problems are brakes, suspension, lights, tyres, exhaust & emissions, steering issues. These are the areas most likely to cause advisories or failures during an MOT test, based on 194 real tests.

Is the General Motors Unclassified reliable?

The General Motors Unclassified has an average MOT pass rate of 96%, which is 14 points above the national average of 82%. This is considered good reliability.

Which year General Motors Unclassified is most reliable?

The 2019 General Motors Unclassified is the most reliable year with a 100% MOT pass rate. Avoid the 2018 model year if reliability is your priority, as it has the lowest pass rate at 92%.

How much does it cost to fix common General Motors Unclassified faults?

Repair costs vary by issue. Brake work on a General Motors Unclassified typically costs £80-£450, suspension repairs cost £150-£600, and exhaust/emissions fixes cost £80-£800. Lighting and wiper fixes are usually under £200.

Check a Specific General Motors Unclassified

Enter any reg plate to see the exact MOT history, defects found, health score, and running cost estimate for that specific car.

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Free instant check using official DVSA and DVLA data

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