NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
123 reports70,000 miles · Oct 28, 2008
Engine And Engine Cooling
AT ABOUT 70,000 MILES I STARTED TO SEE A VERY FINE MIST-LIKE SMOKE COMING FROM THE DASH WHILE DRIVING. THERE WERE NO WARNING LAMPS ILLUMINATED ON THE DASH. SO AFTER THE TEMP GAUGE STARTED TO GO UP AND I COULD ALSO SMELL ANTI-FREEZE. I CHECKED THE RADIATOR AREA AND COULD FIND NO LEAK BUT WHEN I CHECKED THE COOLANT IT WAS LOW. I T…
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AT ABOUT 70,000 MILES I STARTED TO SEE A VERY FINE MIST-LIKE SMOKE COMING FROM THE DASH WHILE DRIVING. THERE WERE NO WARNING LAMPS ILLUMINATED ON THE DASH. SO AFTER THE TEMP GAUGE STARTED TO GO UP AND I COULD ALSO SMELL ANTI-FREEZE. I CHECKED THE RADIATOR AREA AND COULD FIND NO LEAK BUT WHEN I CHECKED THE COOLANT IT WAS LOW. I TOPPED OFF THE COOLANT AND A COUPLE OF MONTHS LATER IT DID THE SAME THING. I THEN ADDED STOP-LEAK AND THE COOLANT LEVEL SEEMS TO BE STAYING BUT I CAN STILL SMELL THE ANTI-FREEZE AND THE WINDOWS FOG UP. I UNDERSTAND THERE IS AN ISSUE WITH GASKETS ON THE HEATER CORE. I AM WORRIED THE COOLANT LEAKED INTO MY VEHICLE IN THE AREA OF THE ECM. TO ME, THIS IS A SERIOUS SAFETY ISSUE AND MITSUBISHI SHOULD BE CORRECTING THIS PROBLEM BECAUSE IT IS VERY COMMON FROM WHAT I HAVE READ ON-LINE. *TR
NHTSA ODI #10246942
77,000 miles · Oct 23, 2008
Engine And Engine Cooling
I BOUGHT MY CAR USED FROM THE DEALERSHIP, AND DROVE ABOUT 200 MILES BEFORE I REALIZED THE ANTIFREEZE SMELL AS WELL AS MY WINDOWS BEGAN TO FOG. AFTER READING THE VAST AMOUNT OF HEATER CORE PROBLEMS IN THE MITSUBISHI DIAMANTE, I DECIDED TO FILE A COMPLAINT. ANTIFREEZE IN THE CAB OF THE CAR COLD LEAD TO HEALTH ISSUES AND THE CONS…
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I BOUGHT MY CAR USED FROM THE DEALERSHIP, AND DROVE ABOUT 200 MILES BEFORE I REALIZED THE ANTIFREEZE SMELL AS WELL AS MY WINDOWS BEGAN TO FOG. AFTER READING THE VAST AMOUNT OF HEATER CORE PROBLEMS IN THE MITSUBISHI DIAMANTE, I DECIDED TO FILE A COMPLAINT. ANTIFREEZE IN THE CAB OF THE CAR COLD LEAD TO HEALTH ISSUES AND THE CONSISTENT FOGGING OF THE WINDOWS CAN LEAD TO LITTLE TO NO VISIBILITY. THE WINDOWS WILL RANDOMLY BECOME INTENSELY GREASY WITH ANTIFREEZE BACKUP, THIS CAN HAPPEN AT ANYTIME WHEN I AM DRIVING. I AM EXTREMELY CONCERNED ABOUT GETTING INTO AN ACCIDENT DUE TO MY VISIBILITY, AND AM GETTING MY EYES CHECKED OUT JUST INCASE THE ANTIFREEZE HAS AFFECTED THEM. THANK YOU *TR
NHTSA ODI #10246481
75,000 miles · Oct 9, 2008
Engine And Engine Cooling
I BOUGHT A 2002 MITSUBISHI DIAMANTE LS 10/3/07. HE HAD 53,000 MILES ON IT. IT NOW HAS ABOUT 75,000 MILES. MY PROBLEM IS THE SAME AS HUNDREDS OF OWNER OF THIS CAR. HEATER CORE ISSUES. I RECENTLY HAD THE HEATER CORE GASKETS REPLACED AS I WAS TOLD THAT THE HEATER CORE WAS OK, STILL HAD TO PAY FOR LABOR. IT IS NOW LEAKING AGAI…
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I BOUGHT A 2002 MITSUBISHI DIAMANTE LS 10/3/07. HE HAD 53,000 MILES ON IT. IT NOW HAS ABOUT 75,000 MILES. MY PROBLEM IS THE SAME AS HUNDREDS OF OWNER OF THIS CAR. HEATER CORE ISSUES. I RECENTLY HAD THE HEATER CORE GASKETS REPLACED AS I WAS TOLD THAT THE HEATER CORE WAS OK, STILL HAD TO PAY FOR LABOR. IT IS NOW LEAKING AGAIN. THIS IS A VERY COMMON PROBLEM AND SEEMS THAT MITSUBUSHI IS UNWILLING TO DO ANYTHING ABOUT THIS. THE HEATER CORE IS RIGHT ABOVE THE COMPUTER THAT RUNS THE CAR. WHEN THE HEATER CORE GOES BAD, ITS LEAKS ON THE COMPUTER. WHAT KIND OF SENSE DOES THAT MAKE? MY ENGINE LIGHT IS CONSTANTLY ON AND I HAVE SEEN THE TCL LIGHT COME ON AS WELL. I HAVE SEARCHED THE INTERNET AND ALL 3 OF THESE PROBLEMS ARE VERY COMMON. I WANT TO KNOW IF THERE IS ANYTHING THAT CAN BE DONE ABOUT THIS OR IF MITSUBUSHI HAS ADDRESSED THE PROBLEM AND I AM NOT AWARE OF. I CANNOT AFFORD TO FIX THE CAR OR GET A NEW. PLEASE HELP! *TR
NHTSA ODI #10244946
20 miles · Jul 31, 2008
Electrical SystemElectronic Stability Control (esc)Engine And Engine Cooling
I OWN A 2002 MITSUBISHI DIAMANTE CAR, I BOUGHT THIS CAR IN 02 SINCE THE 1ST DAY I BOUGHT THE CAR THERE WAS PROBLEMS. THE COMPUTER IN THE CAR WENT CRAZY MY CHECK ENGINE LIGHT,,CRUISE CONTROL,ANTI LOCK BRAKE, TCL LIGHT ALL STARTED FLASHING . I TOOK THE CAR BACK TO THE DEALER & THEY REPLACED THE COMPUTER BUT IT DIDN'T WORK TH…
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I OWN A 2002 MITSUBISHI DIAMANTE CAR, I BOUGHT THIS CAR IN 02 SINCE THE 1ST DAY I BOUGHT THE CAR THERE WAS PROBLEMS. THE COMPUTER IN THE CAR WENT CRAZY MY CHECK ENGINE LIGHT,,CRUISE CONTROL,ANTI LOCK BRAKE, TCL LIGHT ALL STARTED FLASHING . I TOOK THE CAR BACK TO THE DEALER & THEY REPLACED THE COMPUTER BUT IT DIDN'T WORK THEY PUT 3 COMPUTERS IN SINCE THEN, THESE LIGHTS ARE STILL ON TILL THIS DAY. IN 06 MY TRANS BLEW I TOOK THE CAR BACK TO THE DEALER THEY REPLACED MY TRANS THE CAR STILL DOESN'T RIDE RIGHT. MY A/C TURNS ON BUT NOTHING COMES OUT SOMETIMES. IN THE WINTER THE INSIDE OF MY CAR BECOMES A FOG ALL OVER MY WINDOWS AND IT WONT STOP FOGGING UP. A SMELL IS COMING OUT OF MY VENTS LIKE A COFFEE SMELL & IM INHALING THIS SMELL WHENEVER IM IN THE CAR I HAVE TO GO TO A DOCTOR TO GET CHECKED OUT TO SEE IF I HAVE HEALTH ISSUES .MY SUN ROOF LEAKS WHEN IT RAINS,I TOOK MY CAR BACK TO THE DEALER TO HAVE ALL THESE ISSUES FIXED BUT THEY NEVER DID I PURCHASED THE CAR IN 02 THE WARRANTY LASTED 02-05 B/C THAT IS WHEN MY WARRANTY EXPIRED. WHEN I CALL THEY TELL ME I HAVE TO PAY OUT OF POCKET B/C THE WARRANTY EXPIRED. THIS ISN'T FAIR TO ANY MITSUBISHI OWNER I SHOULDN'T HAVE TO PAY TO HAVE MY CAR FIXED NOW AFTER THE WARRANTY WHEN ALL THE SAME PROBLEMS HAVE BEEN RECURRING SINCE I PURCHASED THE CAR AND THEY NEVER FIXED IT TO BEGIN WITH. I CAN UNDERSTAND IF I WAS THE ONLY PERSON WITH THESE PROBLEMS I DECIDED TO SEARCH THE INTERNET TO SEE IF ANYONE ELSE OWNED MY MAKE AND MODEL OF MY CAR TO SEE IF THEY HAD SIMILAR PROBLEMS SURE ENOUGH I CAME ACROSS A WEBSITE CALLED WWW.CARSURVEY.ORG/VIEWCOMMENTS_REVIEW_76426.HTML THERE'S OVER 50 PEOPLE WITH THE SAME PROBLEMS I HAVE WITH MY CAR.MITSUBISHI SHOULD FIX THESE PROBLEMS AND STAND BY THERE CARS. I CALLED CORPORATE HEADQUARTERS TODAY & WAS TOLD THERE'S NOTHING THEY CAN DO B/C ITS OUT OF WARRANTY. *TR
NHTSA ODI #10236534
75,000 miles · Jun 16, 2008
Engine And Engine CoolingStructure
NOTICED FAINT SMELL OF ANTI FREEZE APPROXIMATELY 9 MONTHS AGO. HAD PROBLEMS WITH DEFROSTER CLEARING WINDOWS. ALSO, SEEMED TO GET BETTER (OR MAYBE I GOT USED TO THE SMELL). NOW NOTICED PASSENGER SIDE FLOOR CARPET IS SOAKED WITH ANTI FREEZE. OBVIOUSLY A PROBLEM WITH THE HEATER CORE OR THE HOSE(S) WHICH CONNECT TO IT ARE LEAKING. C…
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NOTICED FAINT SMELL OF ANTI FREEZE APPROXIMATELY 9 MONTHS AGO. HAD PROBLEMS WITH DEFROSTER CLEARING WINDOWS. ALSO, SEEMED TO GET BETTER (OR MAYBE I GOT USED TO THE SMELL). NOW NOTICED PASSENGER SIDE FLOOR CARPET IS SOAKED WITH ANTI FREEZE. OBVIOUSLY A PROBLEM WITH THE HEATER CORE OR THE HOSE(S) WHICH CONNECT TO IT ARE LEAKING. CAR HAS 92000 MILES, AND IS WELL MAIN. *TR
NHTSA ODI #10231145
63,000 miles · Jun 9, 2008
Engine And Engine CoolingVisibility
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. THE DEALER SAID THAT IT IS A WHEEL SENSOR THAT WILL RUN ME $625. THE HEATER CORE IS $1,200. EVERY ONE THAT I TALK TO ON THE EMAIL SIGHT IS HAVING THE SAME PROBLEM. PLEASE HELP! THANKS. *TR
NHTSA ODI #10230393
58,000 miles · Apr 21, 2008
Visibility
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 SERVICE COST $1,100. *TR
NHTSA ODI #10225281
Mileage unknown · Apr 13, 2008
Visibility
2002 MITSUBISHI DIAMANTE HEATER CORE LEAKAGE. *TR
NHTSA ODI #10224371
Mileage unknown · Apr 8, 2008
Visibility
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 IS ON. I AM TOLD IT MAY BE THE HEATER CORE. *TR
NHTSA ODI #10223759
72,000 miles · Feb 29, 2008
Power Train
TRANSMISSION RETAINING RINGS BRAKE AND JAM GEARS. CAR STOPPED IN INTERSECTION HAD TO BE PUSHED OFF ROAD AND TOWED TO SHOP REPLACED TRANSMISSION. WAS TOLD BY REPAIR PERSON THAT THIS IS SOMETHING THAT MITSUBISHI KNEW WAS HAPPENING FOR THE LAST 2 YEARS. *TR
NHTSA ODI #10219765
Official recalls
3Sep 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.
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.
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 ↗