LPO, illuminated perimeter rocker lighting

Years 2022–23, 2025–27 Models 8 Factory citations 34

Also described as LPO, Illuminated perimeter rocker lightingLPO, illuminated perimeter rocker lighting, dealer-installedLPO, puddle lampsLPO, illuminated mirror Chevrolet emblem

Also documented for Buick Cadillac GMC

Documented applications

Blazer EV (2024–2027)

2025–2027 Factory-verified

only in: Blazer EV, not the Police Package

GM factory document — 2025 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet blazer ev fleet order guide rpo codes, p.1.

Equinox EV — Ultium BEV2 (2024–2027)

2025–2027 Factory-verified

2025: A/D in LT 2, RS (included with PCN; not available with VQK); D in LT 1 (included with PCN; not available with VQK); 2026–2027: A/D in LT 1; A/D in LT 2, RS (included with PCN)

GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide, p.14.
GM factory document — 2026 chevrolet equinox ev fleet order guide, p.13.
GM factory document — 2027 chevrolet equinox ev fleet order guide, p.13.

Silverado EV — BT1 (2024–2027)

2025–2026 Factory-verified

2025: A/D in 3LT, 2SP, 3SP; not offered in 2WT, 5WT, 8WT; 2026: A/D in 2LT, 3LT, 4LT, 2TR, 3TR, 2SP, 3SP; not offered in 4WT, 5WT, 8WT

GM factory document — 2025 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado ev fleet order guide, p.17.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.26.

Silverado 1500 — Fifth generation (2027)

2027 Factory-verified

GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide, p.69.

Silverado HD (T1XX, 2020–2027)

2023, 2025–2027 Factory-verified

only in: 2500 HD

GM factory document — 2023 chevrolet 23silverado 2500 3500hd electrical body builder sm en us 2022oct12, p.13.
GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.

Suburban — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: LT, RST, Z71, Premier, High Country: O

GM factory document — 2025 chevrolet new suburban fleet order guide, p.51.
GM factory document — 2026 chevrolet suburban fleet order guide, p.55.
GM factory document — 2027 chevrolet suburban fleet order guide, p.51.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.12.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.12.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.8.

Tahoe — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: LT, RST, Z71, Premier, High Country: O

GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.66.
GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.71.
GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.66.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.12.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.12.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.8.

Traverse — Third generation (2024–2027)

2025–2027 Factory-verified

O on all trims; included with PCL

GM factory document — 2025 chevrolet traverse fleet order guide, p.32.
GM factory document — 2026 chevrolet traverse fleet order guide, p.34.
GM factory document — 2027 chevrolet traverse fleet order guide, p.34.

This page aggregates every documented appearance of S3I in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.