Problems · by component

2003 Mitsubishi Diamante visibility problems

30 owner complaints to NHTSA about the 2003 Mitsubishi Diamante cite visibility, 43% of all 69 complaints for this model year.

Complaints
30
43% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the visibility

Verbatim from NHTSA complaints, newest first
“INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). THIS CONCERNS MY 2003 MITSUBISHI DIAMANTE. IT HAS LESS THAN 50,000 MILES ON IT AND IT HAS SUDDENLY STARTED SPEWING A LIGHT FILM ON THE INSIDE OF MY FRONT WINDSHIELD SO THAT I CANNOT SEE WELL...AND NOT AT ALL WHEN I AM HEADED INTO THE SUN. I HAVE CHECKED ON THE INTERNET AND A LOT OF PEOPLE ARE HAVING THE SAME PROBLEM WITH MITSUBISHI DIAMANTES GOING BACK SEVERAL MODEL YEARS. ALL DIAMANTES NEED TO BE RECALLED AND THE HEATER CORE AND/OR ITS O RINGS FIXED OR REPLACED. IF THIS DOESN'T HAPPEN, PEOPLE WILL DIE WHEN THEY SUDDENLY CANNOT SEE THE ROAD THROUGH THEIR FRONT WINDSHIELD. [XXX] *TR *DT”
Owner complaint to NHTSAFiled Mar 22, 2010VisibilityODI 10321417
“I HAVE A 2003 MITSUBISHI DIAMANTE WITH 60,000 PLUS MILES. FOR THE PAST SEVERAL MONTHS I HAVE NOTICED A STRONG SMELL OF ANTI-FREEZE COMING FROM THE VENTS AND THE WINDOWS CONSTANTLY FOGGING UP, SOMETIMES TO THE POINT THAT I CANNOT SEE TO DRIVE. I HAVE READ MANY SIMILAR COMPLAINTS AND AGREE WITH OTHERS THAT MITSUBISHI NEEDS TO ISSUE A RECALL FOR THE HEATER CORE, AS I AM SURE THIS IS THE PROBLEM. I HAVE YET TO TAKE MINE IN TO GET IT REPAIRED, SO I DON'T HAVE A COST QUOTE AT THIS TIME. *TR”
Owner complaint to NHTSAFiled Mar 11, 2010Engine and engine cooling, VisibilityODI 10318872
“ANTI-FREEZE LEAK ON CARPET PASSENGER SIDE NEAR FIREWALL FOGGED UP WINDOWS CHECK ENGINE LIGHT COMES ON AND OFF DUE TO THE LEAK THE ECU STARTED WORKING AWFUL. *TR”
Owner complaint to NHTSAFiled Feb 16, 2010Engine and engine cooling, VisibilityODI 10311071
“HEATER CORE LEAKAGE CAUSING SMOKE AND ANTIFREEZE ODOR TO COME OUT OF CAR VENTS AND UNDERNEATH DASH BOARD (PASSENGER SIDE). THERE IS A RISK OF ACCIDENT, PERSONAL INJURY, OR DEATH BECAUSE USE OF A/C, HEATER, AND DEFROST IS NOT AVAILABLE WHEN WINDSHIELDS AND WINDOWS FOG UP. *TR”
Owner complaint to NHTSAFiled Oct 18, 2008VisibilityODI 10245996
“I HAVE 2003 MITSUBISHI DIAMANTE. MY "CHECK ENGINE" LIGHT CAME ON, SO I TOOK IT IN FOR SERVICE, AND MY HEATER CORE WAS LEAKING ON MY COMPUTER...NOW IT'S GOING TO COST ME AROUND 3,500 DOLLARS....THIS IS A VERY FLAWED DESIGN. THERE SHOULD BE A RECALL ON THIS ITEM. *TR”
Owner complaint to NHTSAFiled Apr 7, 2008Engine and engine cooling, VisibilityODI 10223524
“DRIVING ALONG AND WINDOWS STARTED TO FOG UP, AND STARTED SMELLING A ODD ODOR. FOUND OUT MY HEATER CORE WAS BAD. APPARENTLY CRACKED FOR NO REASON. RIGHT NOW BY-PASSED THE HEATER CORE BECAUSE MITSUBISHI DEALER QUOTED $1,800.00 TO FIX IT. IT APPEARS TO BE A BIG PROBLEM WITH THE DIAMANTE'S. *TR”
Owner complaint to NHTSAFiled Apr 7, 2008VisibilityODI 10223547

Showing 6 of 30 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.