Lamp, cargo center high mount stop, located within cab-mounted cargo light

Years 2023–27 Models 2 Factory citations 8

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Also described as Lamp, CHMSL, center high mount stop light (see BFO before using)

Also documented for GMC

Documented applications

Colorado — Third generation (2023–2027)

2023–2024, 2026 Factory-verified

GM factory document — 2023 chevrolet 23colorado electrical body builder, p.13.
GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.14.
GM factory document — 2026 chevrolet colorado electrical body builder manual service manual 2026 en us, p.8.

Silverado EV — BT1 (2024–2027)

2025–2027 Factory-verified

2025: S in 2SP, 3SP; A in 3LT; not offered in 2WT, 5WT, 8WT; 2026: S in 4LT, 3TR, 2SP, 3SP; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2027: S in 3TR; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2025–2027: included and only available with Y5T; Sierra EV reads "Cargo lamps, located within cab-mounted cargo light"

GM factory document — 2025 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado ev fleet order guide, p.8.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.12.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.10.

This page aggregates every documented appearance of T3V in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.