i put one on my 2024 equinox and now the outside temp reading is wrong all the time....
i read on another post online where someoe had the same problem....removed the jumper
and outside temp worked again, so guess ill remove mine
That is an interesting one for sure. I do know over at a traverse forum I am on, one of the members bought one of the bypass harnesses for his 2020 Traverse and it instantly set the check engine light. He tried another harness, from another seller and that one worked. From what we've gathered, these auto stop/start bypass harnesses rely on a resistance value to trick the system. My guess is, if the resistance value is off a bit, you'll get a CEL, etc.
I do also believe, member
@penright on this site tried one on his 2025 Equinox and it set the check engine light. He did a bunch of research on how they work and posted some great info. Much smarter feller than I.