RZT ✓ Factory-verified

GMC · Regular Production Option

LPO, spare 18 Grazen Metallic beadlock wheel with Tech Bronze decorative ring

Years 2025–26 Models 2 Factory citations 4

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Also documented for Chevrolet

Documented applications

Hummer EV Pickup (2022–2027) →

• 2025–2026 ✓ Factory-verified
  ⛭ GM factory document — 2025 gmc hummer ev pickup fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 gmc hummer ev pickup fleet order guide rpo codes, p.1.

Hummer EV SUV — BT1 (2024–2027) →

• 2025–2026 ✓ Factory-verified

  SUV guide wording: LPO, Spare wheel, 18 inch Grazen Metallic beadlock with Tech Bronze decorative ring. included in and available only with RZK. 2025: O in 1SF, 1SG; 2026: O in 1SF, 1SG; not offered in 3VL.

  ⛭ GM factory document — 2025 gmc hummer ev suv fleet order guide, p.21.

  ⛭ GM factory document — 2026 gmc hummer ev suv fleet order guide, p.25.

Related codes · mentioned in these notes

1SF1SG3VLRZK

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