2008 Cadillac DTS left rear running light not working. Right side works. Brakes, turn signals, and backup lights work fine

SOURCE: Chev Cavalier 2003 only one rear turn/brake/hazard light

I have a 2002 Chev Cavalier that had the same exact problem. I replaced the bulb harness (purchased from a chevy dealership for around $5) which was fairly easy to do. I have had zero problems with it since.

SOURCE: 2006 Ford Escape - Right side flashers (turnsignals) not working

Check the wires at the connection point and follow them back up to the tail light look for any disconnected wires or grounds. Good luck.

SOURCE: Brake light, Turn signal not working rear right 06' Focus

I have a 2000 ford focus no brake lights. with the brake lights the transmission would not go into drive .replaced the brake light switch checked fuse replaced turn signal switch with no results then i moved onto the wiper switch and replaced it as much to my supp rise it fixed the problems

SOURCE: rear left and right turn signal lights not working.

the electronic flasher module may be faulty, or you could have blown a fuse

SOURCE: 99 Chevy Tahoe... Rear turn signals, brake lights, and hazards

I had this problem, and to be honest, it happened to the left side about a week later...it's the board that the bulbs plug into...it's a very common problem with this model. So popular that you can normally get the socket board off the shelf at a parts store! it's extremely simple to replace, and I replaced all the bulbs at the same time!