What breaks most · 1992 to 2004 model years
Mitsubishi Diamante problems by year
Owners have filed 505 safety complaints with NHTSA about the Mitsubishi Diamante across model years 1992 to 2004. One year stands out: 2002 for visibility complaints. The quietest years are 1995, 1999 and 1994.
- Years to check closely: 2002
- Fewest complaints: 1995, 1999, 1994
- Complaints on file
- 5051992 to 2004, all trims
- Worst year
- 2002123 complaints
- Crashes reported
- 283 fires · 46 injuries · 2 deaths
- Typical failure mileage
- 60kMedian where owners gave mileage
- Recall campaigns
- 21Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 42 | 1 | 2 | Engine and cooling (11) | |
| 29 | 10 | 3 | Air bags (10) | |
| 27 | 3 | 2 | Air bags (6) | |
| 12 | 3 | 0 | Powertrain and transmission (6) | |
| 34 | 2 | 0 | Brakes (hydraulic) (13) | |
| 27 | 1 | 1 | Visibility (15) | |
| 23 | 0 | 2 | Visibility (10) | |
| 51 | 3 | 3 | Visibility (27) | |
| 78 | 0 | 2 | Visibility (56) | |
| 123 | 4 | 3 | Visibility (71) | |
| 56 | 1 | 2 | Visibility (28) | |
| 3 | 0 | 1 | Powertrain and transmission (3) |
What fails on the 2002 Mitsubishi Diamante
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| VisibilityMirrors and glass | 58% |
71 | 0 | Shop all visibility parts, not filtered to this vehicle |
| Engine and coolingRadiators, thermostats and cooling | 31% |
38 | 1 | Shop engine and cooling parts for the 2002 Mitsubishi Diamante |
| Powertrain and transmissionTransmission parts | 8% |
10 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Electrical systemAlternators, starters and ignition | 7% |
9 | 1 | Shop electrical system parts for the 2002 Mitsubishi Diamante |
| Fuel systemFuel pumps and injectors | 3% |
4 | 1 | Shop fuel system parts for the 2002 Mitsubishi Diamante |
| Brakes (hydraulic)Brake pads, rotors and calipers | 3% |
4 | 1 | Shop brakes (hydraulic) parts for the 2002 Mitsubishi Diamante |
| Tires | 2% |
3 | 0 | — |
| Body and structureDoors, latches and body hardware | 2% |
3 | 0 | Shop all body and structure parts, not filtered to this vehicle |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
-
Foggy window, antifreeze smell through vent, passenger side floor damp/wet. Was told by dealer that heatercore o-rings and heatercore possibly needs to be replaced. Looking for alternative solution to resolve the problem.
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Mitsubishi Diamante years have the most problems?
By NHTSA complaint volume, 2002 carries the most filings on the Mitsubishi Diamante. The 2002 alone has 123 complaints, led by visibility.
What is the most common Mitsubishi Diamante problem?
On the 2002 model year, the most-reported component is visibility with 71 complaints. The table above lists the top components for every year.
At what mileage do Mitsubishi Diamante problems start?
The median mileage at failure across all Mitsubishi Diamante complaints that include mileage is about 60,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.