Visibility. Review the 71 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine And Engine Cooling. Review the 38 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Power Train. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

4 crash reports0 fire reports8 injury reports

Visibility complaints

71 reports

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Mileage unknown · Oct 7, 2006

Visibility

HEATER CORE LEAKING. *NM

NHTSA ODI #10170214

44,700 miles · Oct 5, 2006

Visibility

2002 MITSUBISHI DIAMANTE PURCHASED FROM WALLACE MITSUBISHI IN KINGSPORT TN. IN JULY 2006. MILEAGE 45000 MILES. FOUL ODOR FROM VENTS, WINDOWS FOGGED WITH GREASY FILM, IMPOSSIBLE TO SEE THROUGH WINDOWS. GARAGE MECHANIC DETERMINED THE CAUSE TO BE HEATER CORE MALFUNCTION. REPAIRS TO COST BETWEEN $700.00 TO $800.00 . I'M NOT THE ONL…

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NHTSA ODI #10169999

Mileage unknown · Sep 26, 2006

Visibility

I NOTICED A MAPLE-SYRUP TYPE SMELL AND FOG COMING OUT OF THE VENTS EVEN WHEN OFF. UPON INVESTIGATION, COOLANT WAS FOUND LEAKING ONTO DRIVERS' SIDE FLOOR. WAS TOLD BY GARAGE THAT IT WAS THE HEATER CORE AND IT WILL COST $800 TO REPAIR. WAS ALSO TOLD THAT IF IT'S NOT REPAIRED IT COULD DAMAGE THE COMPUTER. I WILL HAVE TO GET IT …

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NHTSA ODI #10169304

72,000 miles · Sep 16, 2006

Visibility

LEAKING ANTIFREEZE INTO THE PASSENGER COMPARTMENT. FOGGED WINDOWS, WITH A NEAR MISS ON HIGHWAY BEFORE I COULD GET OFF. *NM

NHTSA ODI #10168425

60,000 miles · Jun 1, 2006

Visibility

THE HEATER CORE HAS BEEN LEAKING FOR ABOUT 2 YEARS ON MY 2002 DIAMANTE. THIS CAUSES FUMES TO TAKE OVER MY CAR AND I CAN NOT SEE OUT OF MY WINDSHIELD. THERE IS ALSO SOME SORT OF ELECTRICAL PROBLEM THAT CAUSES MY CAR TO DIE WHEN IDLE AT STOPS OR WHEN I LET OFF THE GAS. THIS IS VERY DANGEROUS FOR ME. *NM

NHTSA ODI #10158806

44,000 miles · Apr 26, 2006

Visibility

DT*: THE CONTACT STATED THE DEFROSTER FAILED AND WOULD NOT DEFROST THE WINDSHIELD. THE DEALERSHIP DETERMINED A CLIP IN THE SYSTEM CAME LOOSE AND THE CLIP WAS RECONNECTED. NOW, SIX MONTHS LATER, THE PROBLEM HAS RETURNED AND THE DEALERSHIP DETERMINED THE CLIP NEEDS TO BE REPLACED.

NHTSA ODI #10156147

37,000 miles · Apr 5, 2006

Visibility

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WINDSHIELD FOGGING UP WITH FILM AND DEFOG NOT EVEN TOUCHING IT. NOTICED SMOKY LIKE AIR COMING FROM UNDER PASSENGER SIDE DASH. AC IS NOW FLAKY. SOMETIMES WILL WORK SOMETIMES WON'T. MOST LIKELY HEATER CORE IS DEFECTIVE OR LEAKING AS STATED IN MITSUBISHI DIAMANTE TSB. CAR IS 2002 WITH ROUGHLY 40K MILES ON IT. RIDICULOUS. FROM WHAT I HAVE READ ONLINE MOST DEALERS ARE CHARGING UP TO $1200 TO FIX THIS. THIS IS NOT JUST A SAFETY HAZARD BUT A HEALTH HAZARD DEPENDING ON HOW LONG ME AND MY FAMILY HAVE BEEN BREATHING IN CONDENSED ANTIFREEZE AND NOT KNOWING IT. WILL NEVER BUY A MITSUBISHI AGAIN!! *NM

NHTSA ODI #10154613

Mileage unknown · Mar 26, 2006

Visibility

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CONTINUAL ODD ODOR ENTERING CABIN OF CAR. IT SMELLS SWEET LIKE MAPLE SYRUP. IT OCCURS WHEN I USE HEATER AND ODOR IS EMITTED THROUGH VENTS. I BELIEVE IT IS ANTI-FREEZE THAT HAS LEAKED, I AM SMELLING ANTI-FREEZE AND I'M CONCERNED FOR MY HEALTH. I HAVE READ NUMEROUS COMPLAINTS IN MITSUBISHI DIAMANTE ONLINE FORUMS ABOUT THIS PROBLEM. THERE IS A HUGE NUMBER OF HEATER CORE HOSE O-RING GASKET FAILURES CAUSING LEAKS NEAR HEATER CORE. APPARENTLY IT ALSO DRIPS ONTO COMPUTER CONTROL UNIT ALSO. *JB

NHTSA ODI #10153724

43,310 miles · Mar 15, 2006

Visibility

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STRONG COOLANT (ANTI-FREEZE) SMELL IN CAR. WINDOWS FOGGED UP AND COULD NOT SEE AND PUFFS OF SMOKE COMING FROM VENTS. DEALER INFORMED ME HEATER CORE NEEDED REPLACING. ALSO STATED THAT ALTHOUGH IT WAS KNOWN ISSUE WITH VEHICLE MITSUBISHI WOULD NOT TAKE CARE OF COST. MITSUBISHI HAS EVEN ISSUED A TECH PUB ON PARTS NEEDED TO REPAIR THIS PROBLEM BECAUSE THEY WERE EXPERIENCING A SHORTAGE. IT TOOK FOUR DAYS TO GET A HEATER CORE FOR MY VEHICLE DUE TO A CRITICAL SHORTAGE OF HEATER CORES. *NM

NHTSA ODI #10152758

82,401 miles · Mar 6, 2006

Visibility

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NOTICED BAD ODOR IN THE VEHICLE FOLLOWED BY THE WINDOWS FOGGING UP AND THE HEATER NOT WORKING A FEW DAYS LATER. REPAIR SHOP STATED THAT THE HEATER CORE NEEDS TO BE REPLACED. THIS IS UNUSUAL FOR CARS THAT ARE ONLY A FEW YEARS OLD AND HAVE LOW MILEAGE. REPAIR WOULD BE AROUND $1000.00. I HAVE THE 2002 DIAMANTE AND THIS PART WAS VERY HARD TO FIND. EVEN THE DEALERSHIP HAD TO ORDER IT. CAN ANYTHING BE DONE TO HELP WITH THIS COST. JUST A STRUGGLING MAN TRYING TO PROVIDE FOR A FAMILY IN A HONEST WAY. PLEASE HELP!!*JB

NHTSA ODI #10151855

Official recalls

04V428000 · Equipment:other:labels

Sep 1, 2004

CERTAIN PASSENGER VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, 'OCCUPANT CRASH PROTECTION.' THE BILINGUAL ENGLISH/SPANISH REMOVABLE AIR BAG WARNING LABELS AFFIXED TO THE DASH AND TO THE SUNVISOR DO NOT MEET THE SIZE REQUIREMENTS OF THE STANDARD.

Consequence & remedy

Consequence: THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.

Remedy: MITSUBISHI CARIBBEAN WILL MAIL A CUSTOMER NOTIFICATION LETTER CONTAINING A WRITTEN DESCRIPTION AND A GRAPHIC OF THE BI-LINGUAL DASHBOARD AIR BAG WARNING LABEL. IN ADDITION, ALL CURRENT 2000-2004 NATIVA OWNERS WILL ALSO RECEIVE REPLACEMENT AIR BAG ALERT LABELS FOR THE SUN VISORS. THIS RECALL IS EXPECTED TO BEGIN DURING MARCH OR APRIL 2005. THE NOTIFICATION TO THE NATIVA OWNERS IS EXPECTED TO BEGIN DURING APRIL OR MAY 2005. OWNERS SHOULD CONTACT MITSUBISHI CARIBBEAN AT 1-787-251-8715.

04V067000 · Equipment:other:owners/service/other Manual

Feb 11, 2004

CERTAIN SPORT UTILITY AND PASSENGER VEHICLES FAIL TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." THE OWNER'S MANUAL DOES NOT CONTAIN A STEP-BY-STEP DESCRIPTION FOR HEADREST ADJUSTMENT WHEN INSTALLING A CHILD RESTRAINT SYSTEM (CRS) TETHER STRAP.

Consequence & remedy

Consequence: 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.

Remedy: A LETTER OUTLINING THE PROBLEM WILL BE SENT TO OWNERS ALONG WITH A STICKER CONTAINING THE CORRECT INSTRUCTIONS AS WELL AS INSTRUCTIONS ON WHERE TO AFFIX THE STICKER IN THE OWNER'S MANUAL. THE RECALL BEGAN ON MARCH 29, 2004. OWNERS SHOULD CONTACT MITSUBISHI AT 1-888-648-7820.

02V100001 · Electrical System:wiring:front Underhood

Apr 7, 2002

ON CERTAIN PASSENGER VEHICLES, THE MAIN UNDER HOOD ELECTRICAL WIRING HARNESS MAY HAVE INSUFFICIENT CLEARANCE BETWEEN THE ENGINE CONTROL HARNESS AND THE EXHAUST HEAT SHIELD. AS A RESULT, THE HARNESS COULD COME IN CONTACT WITH THE HEAT SHIELD, WHICH COULD RESULT IN MELTING OF THE HARNESS INSULATION.

Consequence & remedy

Consequence: 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.

Remedy: DEALERS WILL INSPECT THE HARNESS FOR DAMAGE AND, IF NONE IS EVIDENT, WILL TIE THE HARNESS BACK TO PREVENT THE HARNESS FROM EVER COMING INTO CONTACT WITH THE HEAT SHIELD. ANY HARNESS THAT SHOWS EVIDENCE OF DAMAGE WILL BE REPAIRED AS NECESSARY AND THEN TIED BACK TO PREVENT FUTURE DAMAGE. OWNER NOTIFICATION BEGAN MAY 13, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MITSUBISHI AT 1-800-222-0037.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

No exact-year investigations in this snapshot.