Your vehicle report
2003 Mitsubishi Diamante
The problems owners report. The recalls to check. The evidence behind each.
Your vehicle at a glance
Complaint patterns and official recall records, kept distinct.
- Owner complaints
- 56
- Received Oct 2003 to Jul 2019
Owner reports
Most reported problems
- 1Heater blows cold air, defroster fails8 complaints · 14% of this vehicle’s complaints
- 2Exhaust smell enters cabin during acceleration5 complaints · 8.9% of this vehicle’s complaints
- 3Steering wheel shakes violently at highway speed3 complaints · 5.4% of this vehicle’s complaints
Official NHTSA records
Recalls to check
- Recall #04V428000Certain 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.
- Recall #04V067000Certain 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.
BrakeNews signals
Flagged complaint patterns
Unusual complaint patterns with no matched recall yet. A flag does not mean a recall will happen.
No problems currently meet BrakeNews’s flagging criteria. This is not a safety rating.
How flags are identifiedComplaint counts reflect reports submitted to NHTSA, not failure rates or a reliability ranking. Reported in these complaints: 1 crash, 0 fires, 1 person injured, 0 deaths.
Explore by system
Where do owners report problems?
Choose an area on the car or a system below to explore the reported problems.
Illustrative only; not this vehicle’s exact design. Areas represent complaint categories, not confirmed defective parts.
Showing all 5 listed problems by system.
Engine & powertrain
Brakes
Electrical & lights
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Airbags, belts & seats
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Steering, suspension & tires
Body, doors & glass
Driver assistance
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Other
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Complaint history
When NHTSA received these reports. Changes in reporting alone do not establish a change in failure rates.
Show as a table
| Year | Complaints |
|---|---|
| 2003 | 1 |
| 2004 | 5 |
| 2005 | 8 |
| 2006 | 8 |
| 2007 | 17 |
| 2008 | 7 |
| 2009 | 1 |
| 2010 | 5 |
| 2011 | 2 |
| 2012 | 0 |
| 2013 | 1 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 1 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 0 |
| 2026 (to Oct 2026) | 0 |
| Total | 56 |
Problems owners report
Listed groups have at least 3 complaints. The page includes the 20 largest groups plus any additional flagged groups; some complaints are not assigned to a group.
| Problem | Complaints | Share | Share ratio | Status |
|---|---|---|---|---|
| Heater blows cold air, defroster fails | 8 | 14% | – | |
| Exhaust smell enters cabin during acceleration | 5 | 8.9% | – | |
| Steering wheel shakes violently at highway speed | 3 | 5.4% | – | |
| Head gasket leaks coolant into engine | 3 | 5.4% | – | |
| Front brake rotors warp and wear early | 3 | 5.4% | – |
AI groups complaints by meaning; the groups are approximate. Share ratio compares the problem’s share of this vehicle’s complaints with its share on other vehicles over the last 24 months (shown from 3 recent complaints). A 2× ratio means twice the complaint share, not twice the failure risk. Flags mark unusual shares or recent surges after an AI review of the complaint content. “First signal” does not mean the pattern has persisted continuously.How recall estimates are calculated.
Recalls
NHTSA recall #04V428000September 1, 2004100,432 vehicles affected
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 of the standard.
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.
NHTSA recall #04V067000February 11, 2004134,000 vehicles affected
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 (crs) tether strap.
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.
Other model years
About this data
NHTSA complaints and recalls through October 2026. Complaints are counted once each, however many components they name. Original complaints are on NHTSA's page for the 2003 Mitsubishi Diamante.
Problem groups are formed by AI and may be approximate. BrakeNews flags unusual complaint patterns; they are not official defect findings. Investigation reports are written and checked by AI, with no human review. Owner reports do not establish that a defect exists.
Read the methodology and track record · Check current recalls by VIN