good question. I believe they are name brand bulbs. Both the brake lights and the running lights are out, as well as reverse lights. I actually don't know if they went out at the same time or not, since I didn't even know this was going on until I got a brake light signal on the dashboard when I hit the brakes a few months ago.
The back turn signals were working, but one died about a month ago, and the other yesterday. We can't drive it obviously, but would like to get it fixed by a good volvo mechanic. I took it to a generalist already and he just replaced the bulbs I had already replaced and didn't even check it. made no difference.
Thanks for your help!
I forgot to mention that the front lights (headlights, turn signals) are working fine. Thanks again for any help.