I have a 2002 S80 that has a door lock problem. The front doors have buttons that lock on the first touch and then unlock on the second touch. Currently they only lock. The second touch will not unlock the doors. The key fob works perfectly. What should I check to solve this problem? Is there a ...

My S80 also has a sound like tire noise. Seems to be getting louder. It is a 2002 with 110K miles. Is probably a bearing problem also?