I tried again on the weekend. I turned reverse brake assist off and tried with traction control on and off. I just had a little 14ft aluminum on a small trailer hooked up this time, so not much weight at all. It must not have had a great connection on the 4 pin because "trailer disconnected"...
I don't think it was reverse brake assist. It told me reverse brake assist and cross-traffic alerts were disabled when I connected the trailer. I'm going back up there this weekend, I'll try with traction control off and try just rolling in neutral to see if either or those will work.
I've had my 2023 Lightning ER just over a month now and I love it, but I recently discovered that it can't do something that I do all of the time with no problems with my Silverado.
At my summer cabin I park the boat against the side of the cabin. The driveway is a steep gravel road and the...