I don't own a Bolt, so my comments are general.Also, how did you connect the power to the light kit? Separate wire to the 12V battery in the front? Or tapped into the thin-looking wire as in the how-to-install-Tekonsha pdf shared here? I am not very comfortable tapping into it due to the thickness of that wire given the trailer kit fuse is 15A and the kit has thicker wires for power...
I'm installing a hitch on a CX-5 Monday. I intend to tap into existing 12v circuits rather than run the length of the vehicle, which I imagine is a PITA (just did that multiple times on a Volvo for lights and brake controller recently). Every circuit is protected by it's own fuse, so worst case is you blow it and have to replace the fuse (keep extras on hand). If you use LED lights, there's no way you'd blow a fuse unless you had a short somewhere. Heck, I directly wired my LED trailer lights to the Prius harness since they were so low draw and I'm cheap.
Speaking of LED lights, I kept buying those plastic square ones at Harbor Freight, and kept breaking them off in various dumb ways. I'm finally installing steel boxes to insert them into, and hopefully that will be the end of my light breakage.