One problem related to transmission not go into gear has been reported for the 2004 Acura MDX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Acura MDX based on all problems reported for the 2004 MDX.
Hose connection failure between radiator and transmission cooler causing radiator fluid to mix with tranny fluid with no dash indicator of problem. . In motion lost power and would not move from 1st gear. Broke down completely in need of transmission work and new coolant system due to hose connect failure.