Plant code, Wentzville, MO, USA

Years 2003–10, 2014–26 Models 3 Factory citations 18

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Also documented for Chevrolet

Documented applications

Canyon — Second generation (GMT31XX) (2015–2022)

2015–2017, 2019–2022 Factory-verified internal

; GM Authority names Wentzville as the 2020 Canyon plant; 2021 from the upfitter list GM files for 2021 and 2022; 2020 from GM Authority, 2020 Canyon page

GM factory document — 2015 chevrolet canyon colorado electrical body builders manual service manual 2015 en us, p.16.
GM factory document — 2016 chevrolet canyon colorado electrical body builders manual service manual 2016 en us, p.15.
GM factory document — 2017 chevrolet canyon colorado electrical body builders manual service manual 2017 en us, p.19.
GM factory document — 2019 chevrolet 19 coloradocanyon body builder sm u 2018aug01 1, p.13.
GM factory document — 2022 chevrolet 22 canyon colorado electrical body builder sm en us 2021oct15, p.14.

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

2023–2024, 2026 Factory-verified internal

GM factory document — 2023 gmc 23canyon electrical body builder 2023march13, p.13.
GM factory document — 2024 gmc 24 canyon electrical body builder manual 2023oct04, p.14.
GM factory document — 2026 gmc canyon electrical body builder manual service manual 2026 en us, p.9.

Savana — GMT610 (2003–2027)

2003–2010, 2014–2018, 2022–2026 Factory-verified internal

GM factory document — 2003 gmc savana rpo code list, p.1.
GM factory document — 2008 gmc savana rpo code list, p.1.
GM factory document — 2008 chevrolet ld electricalfullsizevans, p.19.
GM factory document — 2009 gmc savana rpo code list, p.1.
GM factory document — 2009 chevrolet ld electricalfullsizevans 100813, p.17.
GM factory document — 2010 chevrolet gh van elec 1 7 d1 100813, p.17.
GM factory document — 2014 chevrolet gh van elec bbm si brief, p.8.
GM factory document — 2018 chevrolet 18 express savana bodybuilders sm 2017nov06, p.17.
GM factory document — 2022 chevrolet 22 express savana electrical body builder sm en us 2021oct12, p.15.
GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.13.

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