A brand-new, VIN-programmed GM body control module is typically less than the dealer route — and it’s a new OEM part with full warranty, not a salvage unit. Here’s what a BCM replacement really costs, why the new-module route comes in lower, and what’s involved after it arrives.
DTC B101E is a General Motors diagnostic trouble code in the “Electronic Control Unit Software” family. On its own it… Read more B101E & U0028 on an HMI: the “VIN Not Programmed” Fault
In October 2025, GM CEO Mary Barra confirmed what had only been rumored: Apple CarPlay and Android Auto will be… Read more GM’s End of CarPlay and Android Auto: What It Means by Model Year
C7 Corvettes can be upgraded with 2019 Track Mode and GTLM instrument cluster displays using OEM-correct hardware. This guide explains compatibility, requirements, and how 2014–2015 models can achieve full functionality with CarPlay and steering wheel control support.
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.
Swapped mirrors on a GM vehicle and now your cameras are cropped, guidelines are wrong, or an hourglass won’t clear? This tech note explains why calibration often fails after mirror swaps and why the real cause is a camera-processing configuration mismatch—not a defective camera or HMI.
Canadian-spec GM instrument clusters often display incorrect speed units, temperature scales, warning icons, and regulatory indicators when used in U.S. vehicles. This tech note explains why these differences exist, why simple programming does not fix them, and how an OEM-correct cluster replacement restores proper U.S.-spec operation.
Many GM owners have asked why an “HMI 3.x upgrade” was never offered for HMI 1.1–2.5 vehicles. This article explains, in OEM-level detail, why such an upgrade was never technically viable for most platforms—and why WAMS refuses to sell solutions that only partially work.
Universal aftermarket digital clusters often look impressive, but most don’t integrate correctly with modern GM electrical architecture. This tech note explains why GM clusters are control modules (not just screens), why Global A/Global B and CAN/CAN-FD differences matter, and why many “one-size-fits-all” clusters cause incorrect gauges, missing warnings, and unreliable vehicle behavior.
Many 2019–2022 Silverado and Sierra owners ask if the full digital refresh cluster can be retrofitted. Here’s why it can’t — and what the correct OEM upgrade actually is.
