DBD ✓ Factory-verified

GMC · Regular Production Option

Mirrors, trailering

Years 2027 Models 1 Factory citations 2

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Also documented for Chevrolet

Documented applications

Sierra 1500 — Next-Generation (2027) →

• 2027 ✓ Factory-verified

  Pro: O; AT4, Elevation, AT4X, Denali, Denali Ultimate: not offered; the guide prints no further wording for this code

  ⛭ GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.35.

  ⛭ GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

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