Ship thru, produced in Mexico, shipped to Auto Truck, Fort Worth, TX, returned to Arlington Assembly

Years 2018, 2025–27 Models 2 Factory citations 6

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Also described as Ship thru, Reading Truck Equipment, Pontiac, MI, for orders with spray-on bedliner

Documented applications

City Express (2015–2018)

2018 Factory-verified internal

; 2018 guide: 1LS, 1LT: O

GM factory document — 2018 chevrolet city express order guide copy gm authority, p.16, p.22.

Silverado EV — BT1 (2024–2027)

2025–2027 Factory-verified internal

vehicle built in Factory Zero, Hamtramck, shipped to the upfitter and returned to Ft. Wayne Assembly for final shipping; requires CGN; 2025: A in 2WT, 5WT, 8WT; not offered in 3LT, 2SP, 3SP; 2026: A in 4WT, 5WT, 8WT; not offered in 2LT, 3LT, 4LT, 2TR, 3TR, 2SP, 3SP; 2027: A in 4WT, 5WT, 8WT; not offered in 2LT, 3LT, 2TR, 3TR

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.41.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.67.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.55.

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