CarModelProblems.com

2002 Mitsubishi Diamante Problems & Recalls

Built from official NHTSA complaint and recall data · data through 07/12/2026

High complaint levelIts most-reported problem — Visibility:defroster/defogger/hvac System:heater Core — runs 11.1× the fleet median for that category across the 409 model-years tracked on this site.
123Complaints
3Recalls
4Crashes
0Fires
11Injured
2Deaths

Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

Is this problem acknowledged?

The most-reported problem — Visibility:defroster/defogger/hvac System:heater Core (50.4% of complaints) — recall and investigation status for this vehicle is currently unavailable.

Visibility:defroster/defogger/hvac System:heater Core complaints here are 11.1× the median for that category across the 409 model-years tracked on this site.

Complaint categoryReportsOfficial statusReference
Visibility:defroster/defogger/hvac System:heater Core62 · 50.4%not available
Engine And Engine Cooling18 · 14.6%not available
Engine And Engine Cooling:cooling System16 · 13%not available
Electrical System8 · 6.5%RecalledRecall 02V100001
Visibility:defroster/defogger/hvac System5 · 4.1%not available
Power Train:automatic Transmission5 · 4.1%not available

Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.

Complaints by component

ENGINE AND ENGINE COOLING18 · 14.6%
ENGINE AND ENGINE COOLING:COOLING SYSTEM16 · 13%
ELECTRICAL SYSTEM8 · 6.5%
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM5 · 4.1%
POWER TRAIN:AUTOMATIC TRANSMISSION5 · 4.1%
VISIBILITY4 · 3.3%
POWER TRAIN4 · 3.3%
TIRES3 · 2.4%
WHEELS2 · 1.6%

Percentages are the share of the 123 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.

Recalls — 3 campaigns

Electrical System:wiring:front Underhood

NHTSA campaign 02V100001 · 2002 · reported 04/07/2002

THE MELTING OF THE HARNESS INSULATION COULD RESULT IN GROUNDING OF THE CRANK ANGLE SENSOR WIRING, CAUSING THE ENGINE TO RUN ERRATICALLY OR STOP SUDDENLY, INCREASING THE RISK OF A CRASH. Recall repairs are free at authorized dealers.

PARK-IT: NO  · PARK-OUTSIDE: NO  ·  OVER-THE-AIR FIX: NO

Equipment:other:labels

NHTSA campaign 04V428000 · 2004 · reported 09/01/2004

THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD. Recall repairs are free at authorized dealers.

PARK-IT: NO  · PARK-OUTSIDE: NO  ·  OVER-THE-AIR FIX: NO

Equipment:other:owners/service/other Manual

NHTSA campaign 04V067000 · 2004 · reported 02/11/2004

IF THE TETHER STRAP IS IMPROPERLY INSTALLED TO THE TETHER ANCHOR, THE CHILD SAFETY SEAT MAY NOT BE SUFFICIENT RESTRAINED. IN THE EVENT OF A CRASH, THE CHILD COULD BE INJURED. Recall repairs are free at authorized dealers.

PARK-IT: NO  · PARK-OUTSIDE: NO  ·  OVER-THE-AIR FIX: NO

Park it Park outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.

What owners report

“THE HEATER CORE. I START SMELLING AN ANTIFREEZE SMELL INSIDE THE CAR THEN THE CHECK ENGINE SOON LIGHT CAME ON. ALSO THE TCL IS ON…”NHTSA complaint 10230393 — filed 06/09/2008 · VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE
“STARTED SMELLING "MAPLE SYRUP" IN PASSENGER COMPARTMENT. WINDOWS WERE FOGGING UP EASILY. THIS WAS CONFIRMED BY DEALER TO BE THE HEATER CORE LEAKING ANTIFREEZE, AND…”NHTSA complaint 10225281 — filed 04/21/2008 · VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE
“THE WINDSHIELD FOGS UP FOR NO REASON AND I AM NOT ABLE TO DEFOG IT. IT IS VERY HARD TO SEE ANY TIME THE HEAT…”NHTSA complaint 10223759 — filed 04/08/2008 · VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Complaint trend by year filed

1200226200419302006303720081952010612013332017

Frequently asked questions

What are the most common problems with the 2002 Mitsubishi Diamante?

Visibility:defroster/defogger/hvac system:heater core issues are the most-reported category, cited in 62 of 123 NHTSA complaints (50.4%), followed by engine and engine cooling (18), engine and engine cooling:cooling system (16), electrical system (8). Complaints are unverified owner reports.

How many complaints does the 2002 Mitsubishi Diamante have?

123 complaints were on file with NHTSA as of 07/12/2026. Of those, 4 involved a crash, 0 involved a fire, and 11 reported injuries. 2 deaths were reported.

Does the 2002 Mitsubishi Diamante have any recalls?

Yes — 3 NHTSA safety recall campaigns, including campaign 02V100001. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.

Has NHTSA acted on the 2002 Mitsubishi Diamante's reported problems?

Recall or investigation data is partly unavailable for this vehicle right now — check your VIN at nhtsa.gov/recalls for the authoritative answer.

Is a complaint proof of a defect?

No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.