general problems of the 2001 Mitsubishi Montero

Five problems related to equipment have been reported for the 2001 Mitsubishi Montero. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Mitsubishi Montero based on all problems reported for the 2001 Montero.

1 Equipment problem

Failure Date: 06/03/2022

Reporting - safety recall as stated on NY state fail inspection. Emissions issues émission results- mil commanded “fail” code p0136-O2 sensor code po455 -evaporative emission system leak.

2 Equipment problem

Failure Date: 12/16/2021

After googling and doing a little reaching I found out it is a very common problem amongst these vehicles that the horn starts blaring in the early morning hours non stop until unplugging the fuse or battery. I have to remove the fuse therefore I’m unsafe knowing that I’m driving without any communication with other vehicles. It is a very expensive repair that most people can’t afford so they’re left doing what I learned to do which puts a lot of people in danger. Please help with this safety concern.

3 Equipment problem

Failure Date: 09/04/2017

On 9/4/2017 at approximately 615am the vehicle was parked in the garage. 10 minutes later our puppy was barking at the door leading to garage. Husband went to see why and saw smoke coming from the door. He opened the door and the garage was filled with black smoke and there was a fire on the underside of the vehicle. Consequently this led to my entire home burning down.

4 Equipment problem

Failure Date: 04/24/2014

Randomly the factory alarm goes off throughout the day with the horn blaring. After a while, the alarm drains the battery, even if it resets. Fuses have been changed, relays, and a reset by disconnecting the battery- to no avail.

5 Equipment problem

Failure Date: 02/29/2012

The horn randomly starts blaring in the middle of the night if you do not remove the fuse. If you remove the fuse it leaves you with no horn! completely unsafe when driving not to have a horn. Clearly this defect was never corrected by the manufacturer. After looking for a cause in many forums, it is clear no one is certain of the actual cause.


Other Equipment related problems of the 2001 Mitsubishi Montero



Fuel Economy of Montero Vehicles
Montero Service Bulletins
Montero Safety Recalls
Montero Defect Investigations