There are just 2 reasons this could happen. You need to go over ALL the adjustments in BOTH doors. If this doesn't fix it then you will have to replace or rewind the door lock solenoids. A Lockzilla WILL NOT fix this problem or any other. It is ONLY meant to replace the unreliable and failure-prone "impulse unit". It is also the building block for the expected door launcher system from Zilla and the remote locking system. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, John Podlewski <john_podlewski@xxxx> wrote: > Adjusted my driver door today and both doors work great on their own. However, I've had this problem for as long as I can remember. Driver door only locks the pax. > > I thought I paid to have door lock module rebuilt last year, but it seems maybe that is the problem, or maybe it was not done, I can't remember? > > Will the LOCKZILLA correct this?