LPO, flexible cargo strap organizer, rear compartment

Years 2025–27 Models 3 Factory citations 8

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Also described as LPO, utility wall strap kitLPO, flexible cargo organizer, dealer-installed

Also documented for Chevrolet

Documented applications

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

2025–2027 Factory-verified

GM factory document — 2025 gmc canyon fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc canyon fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc canyon fleet order guide rpo codes, p.1.

Sierra EV — BT1 (2024–2027)

2025–2027 Factory-verified

included with and only available with PCX

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.18.
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.38.

Sierra — T1XX (2019–2026)

2025 Factory-verified

GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.13.

This page aggregates every documented appearance of S4K in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.