New owner to a 2017 suburban. So far have been inundated with issue after issue unfortunately, mind you they're minute and we did get a deal on it but now it's starting to show why. The current issue besides the check engine light that came on after I replaced the tpms sensors(most likely unrelated but odd it happened at same time) is the reverse lights are on now 24/7. Aftermarket taillights. We did pull fuse 34 in the box which is the reverse lights and made no difference. What can we try next? All help appreciated and thank you!

 

I would try putting the original tail lights back in

 

Welcome from Florida. Has it done this the whole time you have had the truck or just when the aftermarket taillights were installed? Sounds like a problem with the new lights. Do you have the original lights to try and see if that fixes the problem?

 

No hasn't done it the whole time. Just started it after fixing tires. But as of today there's no engine light on. I did unplug a random wiring harness which I thought was for the aftermarket radio but it's not making a difference, so I'll plug that back in later and see if the check engine light returns. I do have originals but really didn't want to go that route. The only issue it came with was that the left indicator failure flashes fast and says error as if there's a bulb out but they're led and haven't sem any out. I'll attach more pics.