Three lights in the sky over Southern Colorado. My buddy and I were heading back to our fishing cabin after some night fishing on North Lake reservoir, between Cuchara and Stonewall, CO, on the Highway of Legends.I noticed three spheres or lights in the sky to our Southeast. They were moving rapidly and in a vertical formation. I asked my buddy if he saw them too, and he did.At this exact moment, the vehicle that I was driving, a 2009 Chevrolet Avalanche, began to experience electrical problems. Warning lights came on for the tire monitor, traction control, air bag, and emission system. Lots of red lights and beeps.We followed the lights in the sky, which were moving back and forth in a rapid jerking motion, until they disappeared behind a ridge. Duration of about two minutes.All of the electrical faults in the Avalanche then miraculously cleared.What we saw was clearly not an aircraft or formation of aircraft, as it moved too rapidly. I have also never seen aircraft in a vertical formation. To say nothing of what the encounter did to my truck!