Dealer found two DDM modules bad. The central locking switch DDM-001D and the front left door lock DDM. Replacement pending receipt of the parts.

Same issue here on a 2010 XC90. never know when the door will actually unlock.
Taking it to the dealer tomorrow, hope to reply with an answer.

Hi, I have a 2010 XC90 65000 miles, have replaced the drivers door window/lock panel twice now and after about 6000 miles after the last swap the key fob and door lock combination plays musical tunes(not really). Press the key fob to unlock or lock and the door lock will go up, then down, then up th...