Short answer: on GM’s Global A trucks and SUVs, the body control module (BCM) decides how the lighting, locks, windows,… Read more GM BCM Programming: What Can Be Changed on K2, T1 and Colorado/Canyon Trucks
Tag: gm dealer programming
Why GM Dealerships Usually Cannot Program Retrofit or Swap Features
Many GM owners are told to “just have the dealer program it” after a retrofit or swap. In reality, dealership programming is tightly restricted to a vehicle’s original build configuration. This Tech Note explains why most retrofits fall outside dealer capabilities — and the rare exceptions where limited changes are allowed.