SAM ✓ Factory-verified

Chevrolet · Regular Production Option

LPO, Underbody Shield package, transfer case protection

Years 2015, 2017, 2026–27 Models 2 Factory citations 4

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Also described as LPO, AEV spec hot-stamped boron steel underbody shield

Also documented for GMC

Documented applications

Colorado — Third generation (2023–2027) →

• 2026–2027 ✓ Factory-verified

  2026–2027: ZR2: O; WT, LT, Trail Boss, Z71: not offered

  ⛭ GM factory document — 2026 chevrolet colorado fleet order guide, p.57.

  ⛭ GM factory document — 2027 chevrolet colorado fleet order guide, p.56.

Silverado — K2XX (2014–2019) →

• 2015, 2017 ✓ Factory-verified
  ⛭ GM factory document — 2015 chevrolet silverado 1500 fleet order guide wayback, p.1.

  ⛭ GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.30.

Related codes · mentioned in these notes

Z71ZR2

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