The larger (60) side of my 2005 Sienna’s third row seat is stuck in the “up” position. That is: the seat back will fold down, but the seat will not release from the floor in order to fold down into the well at the back of the vehicle.
The pull tab on the back of the seat that releases it moves in and out too easily. I viewed the mechanism under the seat and it appears that the pull tab is linked to a cable which rotates an armature, which in turn pulls one cable for each leg of the seat to release it. It looks like the cable connected to the pull tab is properly rotating the armature, but the legs aren’t releasing. I can’t tell for sure but it seems like the armature is rotated into the “release” position but it hasn’t released the legs. I’ve crawled under the seat and tried my best to rotate the armature with my hands and a pair of pliers to no avail.
Has anyone had this happen before? I was thinking my next step would be to try to rotate the armature with a little gentle persuasion (e.g. a hammer and a screwdriver or piece of wood).