Interior trim, Jet Black/Captain Blue

Years 2023–26 Models 2 Factory citations 5

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Documented applications

Bolt EV — first generation (2017–2023)

2023 Factory-verified

only in: Bolt EUV

GM factory document — 2023 chevrolet 23 bolt euv body builder sm en us 2022aug29, p.8.

Silverado — T1XX (2019–2026)

2023–2026 Factory-verified

in the 2023, 2024, 2025 and 2026 Upfitter RPO lists, not in either 2022 list;

GM factory document — 2023 chevrolet 23 silverado 1500 electrical body builder sm en us 2022oct24, p.9.
GM factory document — 2024 chevrolet 24 silverado1500 electrical body builder 2023nov29, p.10.
GM factory document — 2025 chevrolet my25 silverado 1500 electrical bbm, p.8.
GM factory document — 2026 chevrolet silverado 1500 electrical body builder manual service manual 2026 en us, p.4.

This page aggregates every documented appearance of 4AK in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.