2003 Mitsubishi Diamante
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2003 Mitsubishi Diamante is worth — from official NHTSA and EPA data. 11 on record.
2003 Mitsubishi Diamante at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
2003 Mitsubishi Diamante recalls 2
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.
Fix: 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 EXPE…
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.
Fix: 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.
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
2003 Mitsubishi Diamante common problems
The most-reported problem areas across all 69 owner complaints filed with NHTSA — and what to check before you buy.
2003 Mitsubishi Diamante MPG & running costs
Source: U.S. EPA / DOE fueleconomy.gov.
What's a 2003 Mitsubishi Diamante worth?
Estimated 5-year cost to own
A rough guide to what running a 2003 Mitsubishi Diamante costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Investigations & service bulletins
Manufacturer service bulletins 32
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 32.
This is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has launched the 3rd quarterly technician quiz for 2023.
Bulletin DEALER LETTER · Equipment · Jul 2023This Technical Service Bulletin provides instructions and material safety data sheets for removal of rap-film adhesive residue.
Bulletin TSB-23-00-004 · Structure · Apr 2023This Technical Service Bulletin reviews the regulations that require a label showing the reduction in load carrying capacity be affixed to vehicles when the total net weight of accessories is more than 1.5 percent of the vehicle's gross vehicle weight rating (…
Bulletin TSB-23-00-001 · Equipment · Apr 2023This is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has launched the 2nd quarterly technician quiz for 2023.
Bulletin DEALER LETTER · Equipment · Apr 2023This Technical Service Bulletin was sent to dealers to explain the difference between normal dew condensation, which is a natural phenomenon, and water penetration caused by improper sealing or a defective/broken part.
Bulletin TSB-22-54-003 · Exterior Lighting · Apr 2022This is a service newsletter (Tech Talk) that was sent out to dealers.
Bulletin TT253 · Equipment · Nov 2019This is a Technical Service Bulletin sent to dealers. This bulletin supersedes TSB-18-00-003, issued April, 2018, to add updated information for Carrying Capacity Reduced Label.
Bulletin TSB-19-00-008 · Equipment · Jul 2019This is a message sent to dealers, to inform them that an update for MEDIC will be available.
Bulletin MEDICUpdate517 · Equipment · Feb 2018This is a service newsletter (Tech Talk) that was sent out to dealers.
Bulletin TT237 · Equipment · Feb 2018This is a service newsletter (Tech Talk) that was sent out to dealers.
Bulletin TT218 · Engine And Engine Cooling, Wheels, Power Train · Aug 2015Source: NHTSA Office of Defects Investigation, listed for the DIAMANTE. Model-year data, not specific to one car.
About the Mitsubishi Diamante
The Mitsubishi Diamante is an automobile that was manufactured by Mitsubishi Motors from 1990 to 2005. The first series was a hardtop introduced to the public at the Tokyo Motor Show in 1989. It went on sale in Japan exclusively in May 1990 and won that year's Japan Car of the Year award. It was created by splicing an extra 6.6 cm (2.6 in) right down the middle of the Mitsubishi Galant, which itself had won the Japan Car of the Year award in 1987. The Diamante's platform was also used for the sporty Mitsubishi 3000GT.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.
2003 Mitsubishi Diamante trims & engines on record
2003 Mitsubishi Diamante vehicles on record
2003 Mitsubishi Diamante LS6MMAP67P83T005736
2003 Mitsubishi Diamante LS6MMAP67P53T004527
2003 Mitsubishi Diamante LS6MMAP67P23T010995
2003 Mitsubishi Diamante LS6MMAP67P13T012219
2003 Mitsubishi Diamante VR-X6MMAP87P13T010515
2003 Mitsubishi Diamante LS6MMAP67P33T014652
2003 Mitsubishi Diamante LS6MMAP67P13T009417
2003 Mitsubishi Diamante VR-X6MMAP87P63T004905
2003 Mitsubishi Diamante LS6MMAP67P03T013023
2003 Mitsubishi Diamante F/G6MMAP87P83T010771
2003 Mitsubishi Diamante X6MMAP67P83T011925