One problem related to transmission solenoid has been reported for the 2006 Mercury Monterey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Mercury Monterey based on all problems reported for the 2006 Monterey.
Takata inflators. Driving in traffic without warning vehicle just stops moving in heavy traffic. Believe solenoid to drive tranny is faulty.