NCH ✓ Factory-verified

GMC · Regular Production Option

Door locks, rear child security lock, manual child lock system on rear door latch

Years 2023–27 Models 2 Factory citations 9

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Also described as Child lock system, rear door latch

Also documented for BuickCadillacChevrolet

Documented applications

Canyon — Third generation (VSS-T) (2023–2027) →

• 2023–2027 ✓ Factory-verified

  S on all trims

  ⛭ GM factory document — 2023 gmc 23canyon electrical body builder 2023march13, p.11.

  ⛭ GM factory document — 2024 gmc canyon fleet order guide wayback, p.1.

  ⛭ GM factory document — 2025 gmc canyon fleet order guide, p.2.

  ⛭ GM factory document — 2026 gmc canyon fleet order guide, p.2.

  ⛭ GM factory document — 2027 gmc canyon fleet order guide, p.2.

Sierra EV — BT1 (2024–2027) →

• 2025–2027 ✓ Factory-verified
  ⛭ GM factory document — 2025 gmc sierra ev denali fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 gmc sierra ev denali fleet order guide, p.4.

  ⛭ GM factory document — 2027 gmc sierra ev fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2027 gmc sierra ev fleet order guide, p.7.

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