NHTSA owner reports · September 18, 2026 snapshot.
Visibility complaints
56 reportsClear category filter60,000 miles · Jan 31, 2005
Visibility
HEATER CORE, PRODUCING TOXIN FUMES, INSIDE THE CAR. THIS IS MY ONLY MEANS OF TRANSPORTATION, I HAVE A TWO YEAR OLD CHILD WHO I DRIVE AROUND EVERY DAY.THIS IS GOING TO COST ME $400.00 DOLLARS IN LABOR, WHICH I DO NOT HAVE, I HAVE NO IDEA WHAT THE HEATER CORE COST. BUT IT MUST BE FIX BEFORE MY FAMILY OR I COME DOWN WITH SOME SERIO…
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HEATER CORE, PRODUCING TOXIN FUMES, INSIDE THE CAR. THIS IS MY ONLY MEANS OF TRANSPORTATION, I HAVE A TWO YEAR OLD CHILD WHO I DRIVE AROUND EVERY DAY.THIS IS GOING TO COST ME $400.00 DOLLARS IN LABOR, WHICH I DO NOT HAVE, I HAVE NO IDEA WHAT THE HEATER CORE COST. BUT IT MUST BE FIX BEFORE MY FAMILY OR I COME DOWN WITH SOME SERIOUS ILLNESS. *AK
NHTSA ODI #10108324
40,000 miles · Jan 26, 2005
Visibility
VEHICLE EXPERIENCED PROBLEMS WITH THE DEFROSTER. IT WILL NOT CLEAR THE WINDOWS. ALSO, THERE WAS A MIST COMING OUT OF THE VENT. CONSUMER HAS AN APPOINTMENT WITH THE DEALER ON THURSDAY 27 JANUARY, 2005. *AK
NHTSA ODI #10108967
40,000 miles · Jan 26, 2005
Visibility
MY DIAMANTE HAS ABOUT 42,000 MILES ON IT, AND I HAVE JUST BEEN NOTICING THAT THE FRONT AND SIDE WINDOWS FOG UP AND THE DEFROST DOES NOT CORRECT THE PROBLEM. I LIVE IN COLORADO, WHERE IT CAN BE VERY COLD IN THE WINTER MONTHS AND THIS IS A SERIOUS SAFETY ISSUE! I HAVE ALSO NOTICED THAT A SMOKE OR VAPOR COMES OUT OF THE VENTS AND…
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MY DIAMANTE HAS ABOUT 42,000 MILES ON IT, AND I HAVE JUST BEEN NOTICING THAT THE FRONT AND SIDE WINDOWS FOG UP AND THE DEFROST DOES NOT CORRECT THE PROBLEM. I LIVE IN COLORADO, WHERE IT CAN BE VERY COLD IN THE WINTER MONTHS AND THIS IS A SERIOUS SAFETY ISSUE! I HAVE ALSO NOTICED THAT A SMOKE OR VAPOR COMES OUT OF THE VENTS AND SMELLS BAD. THIS TOO IS A HEALTH CONCERN OF MINE. I HAVE A LITTLE THREE YEAR OLD BOY THAT HAS RESPITORY PROBLEMS SO I AM VERY CONCERED ABOUT TAKING HIM IN THE CAR. I KNOW THIS IS A BIG PROBLEM, BECAUSE I SEE MANY PEOPLE COMPLAINING ABOUT IT ON THE WEB, BUT THEY ARE PROBABLY UNAWARE OF THE NHTSA. I FEEL THAT MITSUBISHI SHOULD STAND BEHIND THIS. *AK
NHTSA ODI #10107978
46,800 miles · Jan 26, 2005
Visibility
SMELLED ANITFREEZE IN THE CAR, SUBSEQUENTLY FOUND CARPET SOAKED WITH ANTIFREEZE CALLED DEALERSHIP IN ARLINGTON AND WAS TOLD THAT THEY HAVE HAD SEVERAL PROBLEMS WITH THE HEATER CORE. ESTIMATED COST TO REPAIR $930. CAR IS OUT OF FACTORY WARRANTY BUT HAS EXTENDED WARRANTY W/ $500 DEDUCTIBLE. WAS TOLD TO CALL WARRANTY PEOPLE AND …
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SMELLED ANITFREEZE IN THE CAR, SUBSEQUENTLY FOUND CARPET SOAKED WITH ANTIFREEZE CALLED DEALERSHIP IN ARLINGTON AND WAS TOLD THAT THEY HAVE HAD SEVERAL PROBLEMS WITH THE HEATER CORE. ESTIMATED COST TO REPAIR $930. CAR IS OUT OF FACTORY WARRANTY BUT HAS EXTENDED WARRANTY W/ $500 DEDUCTIBLE. WAS TOLD TO CALL WARRANTY PEOPLE AND TELL THEM WAS "CRACKED" AND THAT IT WOULD BE COVERED. MILEAGE IS ONLY 47,000. *AK
NHTSA ODI #10107967
48,000 miles · Jan 22, 2005
Visibility
STRONG SMELL OF ANTIFREEZE CAUSING NAUSEA AND LOSS OF VISIBILITY WHILE DRIVING DUE TO HEAVY FOGGING OF ALL WINDOWS. IN REVIEW ONLINE FOR OTHER DOCUMENTED CASES THE HEATER CORE AND CORE ASSEMBLY O RINGS ARE SUBJECT TO PREMATURE FAILURE, SEEMS TO BE VERY PREVALENT IN 2001 AND NEWER MITSUBISHI DIAMANTE MODELS.MY DIAMANTE HAS 48,00…
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STRONG SMELL OF ANTIFREEZE CAUSING NAUSEA AND LOSS OF VISIBILITY WHILE DRIVING DUE TO HEAVY FOGGING OF ALL WINDOWS. IN REVIEW ONLINE FOR OTHER DOCUMENTED CASES THE HEATER CORE AND CORE ASSEMBLY O RINGS ARE SUBJECT TO PREMATURE FAILURE, SEEMS TO BE VERY PREVALENT IN 2001 AND NEWER MITSUBISHI DIAMANTE MODELS.MY DIAMANTE HAS 48,000 MILES. *JB
NHTSA ODI #10107739
109,000 miles · Jan 19, 2005
Visibility
2001 MITSUBISHI DIAMANTE. BACK IN NOVEMBER, CAR BEGAN TO SMELL OF ANTIFREEZE/COOLANT, WINDOWS BEGAN TO FOG AND FUMES EMERGED FROM THE VENTS. THE VEHICLE TEMPERATURE GAUGE BEGAN TO RUN HOT. THE FUMES CAUSE NAUSEA. I TOOK CAR TO DEALERSHIP AND THEY REPLACED THE THERMOSTAT AND CHECKED FOR LEAKS. NOW, THREE MONTHS LATER THE EXA…
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2001 MITSUBISHI DIAMANTE. BACK IN NOVEMBER, CAR BEGAN TO SMELL OF ANTIFREEZE/COOLANT, WINDOWS BEGAN TO FOG AND FUMES EMERGED FROM THE VENTS. THE VEHICLE TEMPERATURE GAUGE BEGAN TO RUN HOT. THE FUMES CAUSE NAUSEA. I TOOK CAR TO DEALERSHIP AND THEY REPLACED THE THERMOSTAT AND CHECKED FOR LEAKS. NOW, THREE MONTHS LATER THE EXACT SAME PROBLEM. HEATER CORE PROBLEM AT A COST OF $1300 TO FIX. *NM
NHTSA ODI #10107556
65,000 miles · Jan 12, 2005
Visibility
FOGGED UP WINDOWS ALONG WITH BAD MUSTY SMELL. EXTREMELY DIFFICULT TO DRIVE WHEN YOU CAN'T SEE OUT THE WINDOW. 65,000 MILES SEEMS LOW FOR A HEATER CORE TO GO OUT. THE DEALER SHOULD PAY TO FIX THE PROBLEM OR GIVE A GREAT VALUE ON A TRADE IN.*AK I AM VERY DISSAPOINTED. MY RESEARCH SHOWS THAT THE HEATER CORE IS A VERY COMMON P…
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FOGGED UP WINDOWS ALONG WITH BAD MUSTY SMELL. EXTREMELY DIFFICULT TO DRIVE WHEN YOU CAN'T SEE OUT THE WINDOW. 65,000 MILES SEEMS LOW FOR A HEATER CORE TO GO OUT. THE DEALER SHOULD PAY TO FIX THE PROBLEM OR GIVE A GREAT VALUE ON A TRADE IN.*AK I AM VERY DISSAPOINTED. MY RESEARCH SHOWS THAT THE HEATER CORE IS A VERY COMMON PROBLEM AND THERE SHOULD BE A RECALL OR SOME SORT OF ACTION!!!
NHTSA ODI #10106240
77,178 miles · Jan 9, 2005
Visibility
I PURCHASED A USED MITSUBISHI DIAMANTE IN OCTOBER 2003 WITH 52,000 MILES ON IT. A COUPLE OF MONTHS LATER THERE WAS A STRONG ODOR COMING FROM THE VENTS AND THE WINDOW STARTED FOGGING UP. THE TRANSMISSION STARTED ACTING STRANGE SO I TOOK IT BACK TO THE DEALER AND WAS TOLD THAT THE HEATER CORE WAS LEAKING AND HAD LEAKED ON THE TR…
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I PURCHASED A USED MITSUBISHI DIAMANTE IN OCTOBER 2003 WITH 52,000 MILES ON IT. A COUPLE OF MONTHS LATER THERE WAS A STRONG ODOR COMING FROM THE VENTS AND THE WINDOW STARTED FOGGING UP. THE TRANSMISSION STARTED ACTING STRANGE SO I TOOK IT BACK TO THE DEALER AND WAS TOLD THAT THE HEATER CORE WAS LEAKING AND HAD LEAKED ON THE TRANSMISSIONS COMPUTER. THEY TOLD ME THEY COULD REPLACE THE TRANSMISSION COMPUTER UNDER WARRANTY BUT THE HEATER CORE WAS NOT COVERED AND IT WOULD COST ME ABOUT $668. I HAD TO COME UP WITH THE MONEY TO GET THE HEATER CORE FIXED BEFORE THE COULD FIX THE TRANSMISSION PROBLEM. I ALSO NOTICED SMOKE COMING OUT OF THE VENTS EARLY IN THE MORNING AND THE PASSENGER SIDE MATS WERE ALSO SOAKED WITH ANTIFREEZE.*AK
NHTSA ODI #10106016
58,000 miles · Nov 23, 2004
Visibility
THE DEFROSTER NO LONGER WORKS ON THIS VEHICLE. INSTEAD A STREAM OF 'FOG' IS EMITTED THROUGH THE DUCTS AND THE WINDOWS ARE CLOUDED OVER. THIS REQUIRED ME TO STOP DRIVING BECAUSE I COULD NOT SEE THROUGH THE WINDOW. THERE IS A DEFINITE SMELL OF COOLANT IN THE PASSENGER VEHICLE AND IT IS DIFFICULT TO BREATHE. *JB
NHTSA ODI #10100385
71,300 miles · Sep 20, 2004
Power TrainVisibility
1) SMELLED ANTIFREEZE BUT COULD NOT FIND A SOURCE. 2) HEATER COIL WAS LEAKING. 3) LEAKED ON A COMPUTER THAT CONTROLLED MY TRANSMISSION. WHY WOULD ANYONE PLACE AN ELECTRICAL PART UNDER A UNIT THAT HOLD A LIQUID? WHY WOULD THE ELECTRICAL PART NOT ENCASED IN A PROTECTIVE WRAP IF IT HAD TO BE PLACED NEXT TO A PRESSURIZED LIQUID…
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1) SMELLED ANTIFREEZE BUT COULD NOT FIND A SOURCE. 2) HEATER COIL WAS LEAKING. 3) LEAKED ON A COMPUTER THAT CONTROLLED MY TRANSMISSION. WHY WOULD ANYONE PLACE AN ELECTRICAL PART UNDER A UNIT THAT HOLD A LIQUID? WHY WOULD THE ELECTRICAL PART NOT ENCASED IN A PROTECTIVE WRAP IF IT HAD TO BE PLACED NEXT TO A PRESSURIZED LIQUID CARRING COIL? 4) I WAS CHARGED $1,125.00 TO FIX A PROBLEM CAUSED BY SORRY ENGINEERING. I LEARNED THAT MISUBISHI KNEW OF THE PROBLEM AND NEVER NOTIFIED THEIR CUSTOMERS. THERE SHOULD BE A RECALL AND MITSUBISHI SHOULD HAVE TO PAY FOR THE REPAIRS. ALL PARTS, HEATER COIL, TRANSMISSION REGULATING COMPUTER WERE REPLACED.*AK
NHTSA ODI #10091335