2002 Mitsubishi Diamante Transmission and drivetrain Problems
- Complaints
- 10about this part
- Share
- 8%of 123 total for the year
- Median mileage
- 76,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the transmission and drivetrain of the 2002 Mitsubishi Diamante, 8% of the 123 complaints for this model year. Where a mileage was given, the median is 76,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving my Mitsubishi across the university bridge on 7-28-2017 and suddenly the transmission went out and I was stuck and had no power of movement,my wife and 3 y.o.child were passengers in the car,luckily the state patrol came and assisted us.the dealer told us that this car was mechanically sound and had no problems or issues.they lied to us and by doing so they put our lives in danger.the drivers side air bag was also missing when we purchased the car.”
NHTSA complaint #11012456, filed 2017-08, 143,000 miles“I have a '02 Mitsubishi Diamante and I have had problems out of the heater core leaking and now its affected my ecu (computer) I call the dealership and they want outrageous prices to fix or even check my car.. I think that since its a problem from the dealer they should recall these cars.. I know I will never buy another Mitsubishi and I will never recommend them to a friend.. What can be done about this problem?”
NHTSA complaint #10290728, filed 2009-11, 94,000 miles“January 12, 2005 one cold morning I noticed that the reverse gear did not go in as fast as it should it took like 1 minute to go into gear, when cold it would jolt before advancing in drive. Took it to the dealer, they did not find anything, so I picked up that same afternoon, next morning same problem. …”
NHTSA complaint #10110114, filed 2005-02, 52,700 miles“I have had the transmission replaced including the torque converter $5000. I am going on my second power antenna $300. The most recent called for a heater core replacement $1050.”
NHTSA complaint #10255920, filed 2009-01, 68,228 miles“Transmission retaining rings brake and jam gears. Car stopped in intersection had to be pushed off road and towed to shop replaced transmission. Was told by repair person that this is something that Mitsubishi knew was happening for the last 2 years.”
NHTSA complaint #10219765, filed 2008-02, 72,000 milesRelated service bulletins
- 10170074Aug 28, 2015This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10170071Jul 22, 2015This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10170096Mar 5, 2013This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10170100Feb 6, 2013This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10170086Nov 1, 2012This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10016754Jul 1, 20052-3 SHIFT FLARE.
Transmission and drivetrain: other model years
Other parts of the 2002 Mitsubishi Diamante
71 complaintsEngine cooling
38 complaintsElectrical system
9 complaintsBrakes
5 complaintsFuel system
4 complaintsBody and structure
3 complaintsTires
3 complaintsAir bags
2 complaintsEquipment
2 complaintsOther or unknown
2 complaintsSuspension
2 complaintsWheels
2 complaints
← All problems reported for the 2002 Mitsubishi Diamante
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology