Rear lights may be out due to failed light socket plate on Buick Rainier

Problem Description and Possible Solution
One or more of the rear lights may be out due to a failed light socket plate.
Problem Data
RepairPal Verified
Average mileage: 95,000 (90,000–100,000)
4 model years affected: 2004, 2005, 2006, 2007
6 people reported this problem
Viewing 1 - 3 of 3 comments
Left rear brake light will not work properly. We have replaced bulbs. My husband thinks he will have it fixed but it goes out again.
Rear lights not working turn signal and break lights work fuses looked at and plate changed ok
Rear left turn signal went out -- replaced bulb, still no good. Checked fuses, etc. Just put it back together to "get to it later." Then the right one ALSO went out within a week. Now I began to suspect the turn signal switch in the steering column -- and not looking forward to fixing THAT... but then, just for fun, I opened up the right turn lamp and noticed that the socket connecter (metal contact) itself was black and charred... so I opened up the left one... same thing. The rest of both lamp holders were completely clean -- and I live in Phoenix so there's no salt problem or excessive moisture or anything. I used sandpaper to clean up the contacts and everything works! Going to get two new sockets, but lamps are working again for now!