2003 Mitsubishi Diamante
The Verdict
Worst problem area
Visibility & Lighting
Visibility & Lighting leads by volume: 29 of 56 complaints (52%) mention it. Complaints mentioning Airbags & Restraints include more reported injuries (1) than those mentioning any other identified area.
Complaints filed fell from 123 in 2002 to 56 in 2003.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2001 | 2002 | 2003 | 2004 | 2005 | vs. 2003 Midsize Cars |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 4,300 | 4,300 | 4,300 | 4,300 | 4,300 | |
| Combined MPG | 18 | 18 | 18 | 18 | 18 | |
| City / Highway MPG | 16 / 23 | 16 / 23 | 16 / 23 | 15 / 23 | 15 / 23 | |
| CO₂ tailpipe (g/mi) | 494 | 494 | 494 | 494 | 494 | |
| Complaints filed | 78 | 123 | 56 | 3 | 0 | |
| Recalls issued | 2 | 3 | 2 | 1 | 0 | |
| Crash-involved complaints | 0 | 4 | 1 | 0 | 0 | |
| Fire-involved complaints | 0 | 0 | 0 | 0 | 0 | |
| Injuries reported | 6 | 11 | 1 | 0 | 0 | |
| Deaths reported | 0 | 2 | 0 | 0 | 0 | |
| Configurations compared | 1 | 1 | 1 | 2 | 1 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2003 Mitsubishi Diamante have?
2 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2003 Mitsubishi Diamante?
Visibility & Lighting: 29 of 56 NHTSA complaints (52%) mention it.
What gas mileage does the 2003 Mitsubishi Diamante get?
EPA rates it 18 MPG combined.
How much does it cost to fuel a 2003 Mitsubishi Diamante?
EPA estimates $4,300 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (1)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic 4-spd | 6 | 3.5L | Front-Wheel Drive | Premium | Midsize Cars | 16 mpg | 23 mpg | 18 mpg | $4,300 | 494 g/mi |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 17 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 4 | 0 | 0 | 0 | 0 |
| Fuel System | 2 | 0 | 0 | 0 | 0 |
| Electrical | 2 | 0 | 0 | 0 | 0 |
| Brakes | 5 | 0 | 0 | 0 | 0 |
| Steering | 0 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 6 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 1 | 1 | 0 | 1 | 0 |
| Driver Assistance & Speed Control | 0 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 3 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 29 | 0 | 0 | 0 | 0 |
| Other | 3 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (2)
EQUIPMENT:OTHER:LABELS · Campaign 04V428000 · Sep 3, 2004
Defect: 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: 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.
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL · Campaign 04V067000 · Feb 20, 2004
Defect: 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: 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.