Check your child saftey feature, Open the door in the in the door latch area
your willsee a green and white sticker under this sticker is a hole with
alever slide the lever the opposite way and see if that works, if not then
inside the door a piece of plastic that attaches to the latch release is
broken. As in my case, but then again no one really rides in my backseat
except for my 4 y/o

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