One problem related to transmission not engage has been reported for the 2006 Mercury Milan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Mercury Milan based on all problems reported for the 2006 Milan.
Vehicle automatic transmission will attempt to downshift to lower gear on an upward hill or grade. Without warning, transmission disengages, slips, and suddenly jerks into gear causing the vehicle to lunge forward, sometimes forceful enough to possibly lose control. Many other Ford vehicle models were also affected. Ford issued a technical service bulletin #08-24-1 in 2008 about the known problem, but will do nothing about it after warranty expiration.