DZC Factory-verified

Chevrolet · Regular Production Option

Mirrors, outside, power-adjustable vertical trailering, heated and auto-dimming upper glass (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, perimeter lighting, auxiliary lighting, power folding and extending (extends 3.31 inch [84.25 mm])

Years 2023, 2025–27 Models 1 Factory citations 7

Query this via API →

Also documented for GMC

Documented applications

Silverado HD (T1XX, 2020–2027)

2023, 2025–2027 Factory-verified

only in: 2500 HD, 3500 HD; the 2025 and 2026 lists add the reference "(U12)" after puddle lamps

GM factory document — 2023 chevrolet 23silverado 2500 3500hd electrical body builder sm en us 2022oct12, p.10.
GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado 3500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 3500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 3500 hd retail and fleet fleet order guide rpo codes, p.1.

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