One problem related to noises during shifting has been reported for the 2015 Honda Odyssey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Honda Odyssey based on all problems reported for the 2015 Odyssey.
Very loud clunk noise and vehicle jerks when shifting from 1st to 2nd gear going approximately 20 miles. Could not duplicate the issue after engine restart. Not acceptable behavior with vehicle over $40k and under 1k miles of use.