Model year
2003 Mitsubishi Diamante
NHTSA lists 2 recalls and 56 complaints for the 2003 Mitsubishi Diamante (recall file dated Oct 23, 2026; complaint file dated Oct 23, 2026). The components listed on the most complaints are VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE (24), ENGINE AND ENGINE COOLING:COOLING SYSTEM (11), ENGINE AND ENGINE COOLING (5). NHTSA star ratings from before model year 2011 use an older method and are not shown here. EPA rates it 18 mpg combined (fuel economy file dated Sep 29, 2026). EPA's annual fuel-cost figures for these configurations are $4,550, based on 15,000 miles and 55% city driving.
- 2000 51 complaints
- 2001 78 complaints
- 2002 123 complaints
- 2003 56 complaints
- 2004 3 complaints
- 2005 0 complaints
Recalls
04V428000 · Sep 1, 2004
EQUIPMENT:OTHER:LABELS
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…
04V067000 · Feb 11, 2004
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
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…
Complaints
56 distinct complaints. Crash flag on 1, fire flag on 0, injury field 1, deaths field 0. A complaint can be counted under more than one component. The injury and death figures are the file's numbers (the highest value on each complaint, then added), not a separate verified count of people.
Investigations
No investigations are matched to this name.
Safety ratings
NHTSA star ratings from before model year 2011 use an older method and are not shown here.
Fuel economy
| Configuration | Fuel | City | Hwy | Comb | kWh/100 mi | Range | Annual fuel cost |
|---|---|---|---|---|---|---|---|
| Diamante Sedan · 3.5L · Automatic 4-spd · Front-Wheel Drive | Premium Gasoline | 16 | 23 | 18 | — | — | $4,550 |
Open this model year in the fuel-cost calculator. The calculator starts with no fuel price filled in.
Check a vehicle
This page is not a VIN lookup. NHTSA's recall tool checks a specific vehicle: nhtsa.gov/recalls. NHTSA's page for this model year is 2003 Mitsubishi Diamante at NHTSA. Complaint narratives stay on NHTSA's site and are not copied here.