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2001 Mitsubishi Diamante Problems and Recalls

Owners filed 78 complaints with NHTSA about the 2001 Mitsubishi Diamante, most often about the visibility and wipers (72% of complaints, typically around 58,000 miles). It is the 2nd most complained-about Diamante model year since 2000 and has 2 recalls.

Complaints78
Recalls2
Crashes reported0
Fires reported0
Injuries reported6

Most common 2001 Mitsubishi Diamante problems

  1. Visibility and wipers

    56 complaints · 72%

    Half of these problems showed up before 58,000 miles. Parts named most often: defroster/defogger/hvac system, sun/moon roof assembly, glass, side/rear, windshield wiper/washer.

    The defroster no longer works on this vehicle. Instead a stream of 'fog' is emitted through the ducts and the windows are clouded over. This required me to stop driving because I could not see through the window. There is a definite smell of coolant in the passenger vehicle and it is difficult to breathe.
    Owner report to NHTSA, 2004, at 58,000 miles
    For no particular reason my car fills up with the smell of anti-freeze coolant when I turn on the heater. I have read that this is caused by leaking 0-rings and that this will damage the computers which are underneath the leak. The car is a 2001 Mitsubishi Diamante l.s. The dealer says it is not a common issue. Google…
    Owner report to NHTSA, 2007, at 58,100 miles

  2. Engine

    14 complaints · 18%

    Half of these problems showed up before 58,000 miles. Parts named most often: cooling system, engine.

    For no particular reason my car fills up with the smell of anti-freeze coolant when I turn on the heater. I have read that this is caused by leaking 0-rings and that this will damage the computers which are underneath the leak. The car is a 2001 Mitsubishi Diamante l.s. The dealer says it is not a common issue. Google…
    Owner report to NHTSA, 2007, at 58,100 miles
    Heater core failure/leak in 2001 Mitsubishi Diamante ls; leaked on carpet; continuous odor. Dealer mcginnis Mitsubishi said it would cost over $1000 in labor costs to replace.
    Owner report to NHTSA, 2004, at 59,750 miles

  3. Transmission

    4 complaints · 5%

    Parts named most often: automatic transmission.

    1) smelled antifreeze but could not find a source. 2) heater coil was leaking. 3) leaked on a computer that controlled my transmission. Why would anyone place an electrical part under a unit that hold a liquid? Why would the electrical part not encased in a protective wrap if it had to be placed next to a pressurized…
    Owner report to NHTSA, 2004, at 71,300 miles
    I have a 2001 Mitsubishi Diamante, and am having problems that seem to run rampant among this model/make. My heater core went out at about 100k miles; my ABS light stays on (due to a speed sensor fail), which renders the whole anti-lock system useless; and now my antenna mast is broken. All of these problems are…
    Owner report to NHTSA, 2011, at 100,000 miles

  4. Wheels and tires

    4 complaints · 5%

    Short life of tires. Tires have been properly maintained since the purchase of vehicle but some how the belts were separating and the tires where "chopped up" so they put it. Tires are rotated and balanced regularly in which I have been told that a lack of this type of maintenance causes this problem. So I don't…
    Owner report to NHTSA, 2003, at 23,000 miles
    I am feeling a constant vibration on the front end of car, and I just replaced the front tires. I checked to see if the weights are still on the rim and they are. All of a sudden I started to hear a very loud noise and when I pushed the gas pedal the vibration would get worse.
    Owner report to NHTSA, 2007, at 101,890 miles

  5. Brakes

    4 complaints · 5%

    Parts named most often: foundation components, antilock/traction control/electronic limited slip.

  6. Suspension

    3 complaints · 4%

    Parts named most often: front.

    I am feeling a constant vibration on the front end of car, and I just replaced the front tires. I checked to see if the weights are still on the rim and they are. All of a sudden I started to hear a very loud noise and when I pushed the gas pedal the vibration would get worse.
    Owner report to NHTSA, 2007, at 101,890 miles
    2001 Mitsubishi Diamante. We have had it about six months. I have had it in to a very reputable service station and have come up empty on the following problem. The car has new tires, this occurred before and after they were installed. During more aggressive turning the car gets very unstable, bad enough to lose…
    Owner report to NHTSA, 2008, at 63,000 miles

Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.

2001 Mitsubishi Diamante recalls

  1. Equipment: labels

    NHTSA 04V428000 · September 1, 2004 · 100,432 vehicles

    Risk: This does not meet the 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 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.

    Full defect summary

    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.

  2. Equipment: owners/service/other manual

    NHTSA 04V067000 · February 11, 2004 · 134,000 vehicles

    Risk: 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.

    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.

    Full defect summary

    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.

Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.

Questions about the 2001 Mitsubishi Diamante

What are the most common problems with the 2001 Mitsubishi Diamante?
By NHTSA owner complaints: visibility and wipers (56 complaints, typically around 58,000 miles); engine (14 complaints, typically around 58,000 miles); transmission (4 complaints).
How many recalls does the 2001 Mitsubishi Diamante have?
2 recalls listed by NHTSA, the latest from September 1, 2004 (equipment). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
Is the 2001 a bad year for the Mitsubishi Diamante?
It is the 2nd most complained-about Diamante model year since 2000, with 78 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.

Other Mitsubishi Diamante years

Mitsubishi Diamante problems by year