WMY ✓ Factory-verified

GMC · Regular Production Option

VIN model year, 2024

Years 2024–26 Models 3 Factory citations 4

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Also documented for Chevrolet

Documented applications

Canyon — Third generation (VSS-T) (2023–2027) →

• 2024 ✓ Factory-verified internal
  ⛭ GM factory document — 2024 gmc 24 canyon electrical body builder manual 2023oct04, p.14.

Savana — GMT610 (2003–2027) →

• 2024–2026 ✓ Factory-verified internal
  ⛭ GM factory document — 2024 chevrolet 24 express savana body builder manual 18553161 2023oct26, p.15.

  ⛭ GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.13.

Sierra — T1XX (2019–2026) →

• 2024 ✓ Factory-verified internal
  ⛭ GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.18.

This page aggregates every documented appearance of WMY in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.