The back drivers side door will not unlock either from the inside or outside. There is no way to enter or exit the vehicle from that side. This is a significant problem when transporting passengers. It is an extreme hazard in the case of an accident.

Recently the lock/unlock buttons on the external door handles will not unlock when pressed. Must use the key fob to gain entry. Pressing both buttons to lock the doors works correctly. The button used to unlock the trunk does not work at all.