One problem related to brake loud noise has been reported for the 2008 Honda Odyssey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Honda Odyssey based on all problems reported for the 2008 Odyssey.
Brakes are too soft. Had accident twice already because brakes dont react like they are suppose to. You have to push the brake down really hard. With that also said transmission has been a problem since day 1. You hear a loud noise when you change gears. Went to the Honda dealer and they said its normal. I dont think this should be making loud grunting noise.