Mitsubishi Montero Sport owners have reported 1 problem related to transmission failure (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mitsubishi Montero Sport based on all problems reported for the Montero Sport.
Transmission warning light came on to indicate overheat or possible transmission failure. I had to pull off the highway to the breakdown lane (safety concern) to allow trans to cool down. I now discover Mitsubishi has a tech service bulletin (TSB) on this issue for my vehicle, requiring installation of a larger capacity transmission pan, filter and screen, and a longer fill tube and measuring wand.
See
all problems of the 1999 Mitsubishi Montero Sport
🔎.