Replace the Gear Position Sensor on the transmission. Cost is approximately $350. There is a sensor on the brake that will prevent the gearshift from moving out of park until the brake is pressed down. Before you replace some $350 item in the transmission, make sure it isn't this sensor that is causing the issue.
What to do when the gear is stuck in park on a Honda 2001
why is my 2006 Nissan altima gear shift stuck in park
i have a 1998 honda accord the gear shift is locked...
Likely your transmission is dying. Google "odyssey transmission" and you will find lots of reports about problems with 2000- 2004 Odyssey transmissions. If you are persistent enough, Honda might help some with the repair.
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On the gear stick right where your thumb rests
with your hand
how to change shift cable on 04 trailblazer
dont change gear
On the transmission!!
Gear shift linkage?Remove gear shift from top and align
this just happened to me i have a 2001 Honda passport the problem with mine was a broken transmission cable. we just had this fixed but until we did i had to push the button on the gear shift and lift up a little and i could put the car into gear ... good luck