Signal Brake Light Out On Left Side Rear Bulbs Are Good

[topdj]

Towed a uhaul today did that mess up my truck

[topdj]

left backup don't work either, this is all in the left rear of truck. I stood behind it and found using the key fob produces no light at all from left rear

 

went to dealers this morning and they found a plug loose/undone on the left rear pretty simple fix I was in and out in 35 minutes

 

They had the tire tech try new bulbs first LOL I told them it was not that. you don't loose 3 bulbs at once on a 1000 mile truck