pull a little harder than you did last time...on my Toyota sienna 2001 it just slowly popped out just as the driver side....soo don't worry worst you can break is a couple plastic clips that you can buy almost anywhere...just man up and pull a little....
You need to remove the inside door panel, then remove the bolts that secure the mirror. It is very simple procedure.
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toyota avensis 2004 how to remove door panel from passanger side front door
need to know how to open the door from the outside of a previa 1992 to take off the panel
the lower panel is held on with push on clips, 11 of them that can be "gently pried up" according to the service manual. remove the handle and strap prior to removal.
i have a 2004 Toyota tundra double cab i want to remove passenger door panel to tight door handle
mine is a 2WD model, but if it's the same, have a look on passenger side access panel immediately inside rear hatch.
The Poer Sliding module is loctaed in the Right rear quarter panel. You will have to remove the trim to access it.
Remove the door panel and the mirror is held on with bolts.
remove the door panel
The flasher on a 99 Toyota Sienna should be beside the instrument panel fuses under the steering column. You will probably have to remove the driver's side knee bolster to get at it, which is kind of a pain.
pull the cup holder off by prying it from the bottom, remove the 10mm screw found underneath it, then with the door fully open, pry the panel with a large screwdriver starting from the bottom and working your way up. once the fasteners are pulled away from the door raise up the panel a few inches and pull it out toward the front.