Sparksalot

I'm glad I found this thread. I was convinced the de-commissioning process for my PPV disabled the reverse lights. I had none at all, then one day the were on continuously. I replace the underhood fuse block, which replaced the reverse relay too. That did the trick. GM calls it a "junction block" GM 22798217 Engine Wiring Harness Junction Block

I'll admit I was skeptical of the email route. I received a response pretty quickly. The build sheet answered my questions about a few RPO codes I couldn't find. They were basically related to fleet ordering. The sheet even has the build date.