I’m by no means an expert, but did have trailer light issues recently with my 2011 Silverado.
Did you check the fuses? I figured my trailer lights would simply run through the fuses for the trucks tail/brake lights, not so. The trailer wiring has its own fuses separate from the truck lights. I never knew that, and made an easy fix.
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‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears.
‘55 Catalina
‘62 Mercury Meteor-all original, bought new by my grandfather
71' GTO -original 400/4-speed/3.23 posi
13.95 @ 102.1 on street tires @ 4055lbs.-now my sons ride
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