The Isuzu I-Mark draws 1 complaints per production run against 3.73 for the average car — better than typical. Failures cluster at 0 years, so only 0% of them fall inside the 3-year basic warranty.
Isuzu I-Mark years to avoid — and the best ones
Ranked by complaints per production run rather than by raw count. A raw count only tells you which year sold well — the best-selling year always looks like the worst car. Dividing by the number of runs removes sales volume and leaves the fault rate.
| Model year | Per run | Complaints | Runs | Enough history? |
|---|---|---|---|---|
| 1989 | 8 | 8 | yes |
What actually fails — and at what age
Systems by number of complaints, with the age at which each typically goes. The age column is the useful one — it tells you what to expect next on a car you already own, and what to inspect on one you are about to buy.
| System | Complaints | Typical age | Crash | Fire |
|---|---|---|---|---|
| Electrical System | — | — | — | |
| Seat Belts | — | — | — | |
| Unknown Or Other | — | — | — | |
| Engine And Engine Cooling | — | — | — | |
| Power Train | — | — | — | |
| Vehicle Speed Control | — | — | — |
What else in this class
Same vehicle class as the Isuzu I-Mark, so the comparison is fair — an estate against an estate, not against a coupé. These 6 share its class; open any of them to see its own build years and failure ages side by side with the I-Mark.
| Same class as the I-Mark | Complaints on record | Recall campaigns | Years built |
|---|---|---|---|
| Honda Civic | 413 | 1981–2026 | |
| Ford Mustang | 315 | 1981–2026 | |
| Nissan GT-R | 9 | 2009–2026 | |
| Chevrolet Camaro | 204 | 1981–2026 | |
| Toyota Supra | 36 | 1981–2026 | |
| Nissan Sentra | 158 | 1982–2026 |
These are totals, not rates: a model that sold in millions collects more of both. Open one to see its complaints per production run — the figure this site is built on.
Good year or bad year — the VIN settles it.
- Check any VIN against complaints for its exact build year and plant
- Exact value for that car, adjusted for its mileage
- Full research report as a PDF you can hand to a mechanic
- Alerts if a recall lands on a car in your garage
- No ads, on every page
- No ads, no tracking — and much more
How we measure it
Reliability scores usually arrive as a number out of five with no working shown. The Isuzu I-Mark figure here comes out of 10 individual reports, and here is exactly how they were turned into a rate — two steps in it are arguable and you should be able to argue with them.
Rate, not total. Volume alone would decide the ranking, so we divide by the number of production runs — the distinct first-eleven-character VIN prefixes on record. The Isuzu I-Mark alone splits into 10 runs carrying 10 complaints — 1 per run against 3.73 for the market.
Age, not year. Incident date minus model year gives the age at failure, which is what the warranty question turns on. It is why our «worst year» rankings exclude anything built in the last 6 years — those cars simply have not had time to break yet.
What this is not. Filing with a federal regulator takes effort, so what you see are faults someone judged serious — not scratched paint, not running costs, not how nice the car is to live with. For the Isuzu I-Mark the file runs from 1987 to 1989, so the older years carry a full life of reports and the newest carry almost none.
Frequently asked questions
Is the Isuzu I-Mark reliable?
It draws 1 complaints per production run against 3.73 for the average car, so better than typical. Failures cluster around 0 years of age.
What are the best and worst years for the I-Mark?
Not enough model years with sufficient history to rank.
How long does a I-Mark last?
Complaints reach their halfway point at 0 years. That is when faults start being reported in volume, not when the car stops — but it is the point at which ownership starts costing money.
Will the warranty cover it?
Basic cover is 3 years / 36,000 miles, and 0% of reported failures fall inside it. The rest are yours.
What fails most often?
Electrical System with 4 complaints.
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