I just towed my travel trailer with my new 2020 Silverado, with the factory brake controller. I had a 2020 Colorado ZR2 Bison prior, which was totaled in a crash last month. Prior to that, I had a 2017 ZR2 with the Diesel engine (which was replaced twice). In both Colorados with the factory controller, I would end up with a gain of about 4.0-4.5 and get excellent control of the trailer braking. Towing with the Silverado, I ended up with a gain of 7.5 with the same trailer. In addition, I feel like even with a higher gain setting, the braking performance wasn’t at all what I expected from the bigger truck.
The trailer is a 2018 Keystone passport 175BH, max weight of 4500lbs, probably about 3500 when I’m moving from my house to the storage lot and vise versa.
Am I wrong in thinking that the gain setting would have been about the same with the same trailer, considering they are all GM parts?