LPO, safety kit, universal

Years 2015–20, 2022–26 Models 2 Factory citations 6

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Also documented for Chevrolet

Documented applications

Savana — GMT610 (2003–2027)

2015–2018, 2022–2026 Factory-verified

GM's list calls it an accessory

GM factory document — 2015 chevrolet express savana electrical body builders manual service manual 2015 en us, p.9.
GM factory document — 2018 chevrolet 18 express savana bodybuilders sm 2017nov06, p.14.
GM factory document — 2022 chevrolet 22 express savana electrical body builder sm en us 2021oct12, p.12.
GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.10.

Sierra — T1XX (2019–2026)

2019–2020 Factory-verified

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.9.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.9.

This page aggregates every documented appearance of 5AZ in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.