How do I change the rear turn signal bulb on my 2007 pontiac g6 convertible

The is for a Grand Prix, but it explains that modern cars don't have a flasher relay. The flashing is a function of the Body Control Module (BCM).

https://www.2carpros.com/questions/where-is-turn-signal-relay-for-lrft-turn-signal-and

They just sold you a generic relay.

https://www.google.com/search?q=2007+Pontiac+G6.+turn+signal+relay+location

..

https://www.youtube.com/watch?v=e3UR1SICoIs
https://www.youtube.com/watch?v=90pSRUVJaKg
https://www.g6ownersclub.com/forum/12-problems-solutions/26121-easy-access-fuel-pump.html

https://www.youtube.com/watch?v=BSPMKENmFx8
https://www.youtube.com/watch?v=vclRIGb9xWU

It typically, should be incorporated in drivers side dash next to inside door panel or in dash below drivers side.

Try a new bulb.

Check the wiring on the headlight. You may have a damaged wire or bad ground.

park lamp and license plate share same fuse.check park lamp fuse.if fuse good you have ground wire problems.

thats to new for that to be happening get it back to the dealer they should fix it for free

It could be the wiring that connects to the back bulb. I've seen wires that were rotted away from water getting in behind the housing.

It's a monster pain to get to them, but it's doable. Once you empty the trunk, you'll see 4 black knobs - approx 1.5 inches in diameter. You'll need to remove all of these (they just unscrew, but they are plastic, so be careful not to strip the threading) in order to access the rear light assembly.

They're in there snug, but once you find the appropriate sized socket (I wish I could recall well enough to tell you what size, b/c I remember that it WAS an odd size), you'll have to remove all 3 bolts and then push the whole assembly out from inside the trunk.

Once the assembly is out, you will see the rear of the sockets, which simply push and turn to get the lamps out of. As long as you have everything open, I suggest changing ALL of the lamps (brake, tail, and turn signal) on BOTH sides, since the lamp life for all of these is about the same and it's such a pain to get to them in the first place.

it should be from within the trunk... you may have to remove some carpeting in the corner you want to change the bulb tho

Robert