AS1 ✓ Factory-verified

GMC · Regular Production Option

Sierra LD Pro Safety package

Years 2027 Models 1 Factory citations 2

Query this via API →

Also documented for Chevrolet

Documented applications

Sierra 1500 — Next-Generation (2027) →

• 2027 ✓ Factory-verified

  all trims: included in the trim group; includes CTB HS1 KSG TQ5 UD5 UEU UFB UGN UKK UKT UOW UVZ; the guide also lists UKI, UKM and UVB (UKW replaces UKI with the Trailer Technology Package ZLB)

  ⛭ GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.9.

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

Related codes · mentioned in these notes

CTBHS1KSGTQ5UD5UEUUFBUGNUKIUKKUKMUKTUKWUOWUVBUVZ

This page aggregates every documented appearance of AS1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.