One or more door lock assembly may fail and cause door locking/unlocking problems.Google+
Car Problem Reports
Volvo V70 XC Door Lock Assemblies May Fail and Cause Locking/Unlocking Problems
Volvo V70 XC Problem
Average Mileage: 138,072 mi (80,000 mi - 185,000 mi)
Visitor, 2001 Volvo V70 XC, 185,000 mi
The temperature dropped to 26 degrees overnight and when attempted to use the key to unlock the driver's door, it did not turn over. Had to use hot water to unlock the door.
Visitor, 2000 Volvo V70 XC, 85,000 mi
Tailgate door becomes stuck from time to time. After someone slammed my door a little too hard, something came loose inside and I can hear it rattling inside. Immediately afterwards, when trying to open the rear tailgate, it felt like the latch would not release, even when door was unlocked and I was fully engaging the door handle. The knob that moves up and down is also at a sharp angle.
Some days the rear door releases, some days it doesn't.
Visitor, 1998 Volvo V70 XC, 185,000 mi
i have to unroll window & open door from the outside. I just hope my elec. window keeps working. I don't want to crawl over to the passage door!
Visitor, 1998 Volvo V70 XC, 140,000 mi
Driver side door lock (with key)failed, have not fixed yet. Also passenger rear window switch only worked in down mode, temporarily disconnected switch to avoid being stuck w/ open window. Bypassed switch to get it back up.