JCRowe

I have a 2021 Z71 Suburban. Wanted to borrow a friends trailer and plugged it in. No lights. Works fine on his ford. Put in my 7 pin tester no luck. Plugged in my 4 pin flat tester no luck. Could not tow the trailer without lights. Took it to Chevrolet and they showed me their tester and that all was fine. They told me it is the trailer and asked me how old it was. At the end they told me to take my trailers to an RV place and they would redo my trailer so it will work. So the SMART system these engineers designed is not backward compatible on almost all trailers. So beware. Do not think you are going to rent a trailer that will work, borrow one from a friend or help out somebody in trouble. I am beyond upset with Chevy. PS A lifter broke after 4000 miles on their most expensive and rugged suburban. It is a known defect. They replace all four on the right side, but would not replace the left side in spite of their being a bulletin to replace on the side if one breaks. So now I guess I wait to break down again in the middle of nowhere Utah and then wait 5 days to have it fixed. I think I am going to build a trailer adapter with an inline resister on each lead to make a smart to dumb adaptor. Any suggestion of how many ohms?