Depending on the year of manufacture, the attachment points differ slightly.
Front bumper
-open the hood.
-take out the caps and remove the trim over the grille (air intake).
-under the trim, Unscrew the screws (take out the caps) that secure the grille.
-we release the upper part of the grille from the latches (latches).
-around the perimeter of the lower part, take out the caps and Unscrew the screws (twisted and inserted from the bottom up).
-turn out the wheels (depending on which side we will disassemble).
-in the wheel wells, Unscrew two screws on each side that secure the fender liner and side of the bumper.
-we release the latch in the wings (pull the corners of the bumper towards you).
-with an assistant, pull the bumper forward (look for the wires).
-disconnect the fog lamp connectors (if any).
Rear bumper
-open the trunk lid.
-in the opening of the trunk, Unscrew the four screws.
-at the bottom of the bumper take out the caps (inserted from the bottom up).
-in the wheel arches, Unscrew three screws on each side that secure the fender liner (rear) and the sides of the bumper.
-we release the latch in the wings (pull the corners of the bumper towards you).
-with an assistant, pull the bumper back (look for the wires).
-disconnect electrical connectors (if any).
How to remove front and rear bumper Honda Odyssey RA1, RA2, RA3, RA4, RA5 (1994-1999)
How to remove front and rear bumper Honda Odyssey RA6, RA7, RA8, RA9 (1999-2004)
How to remove front and rear bumper Honda Odyssey (2003-2008)
How to remove front and rear bumper Honda Odyssey (2008-2013)