Wheels, 22 x 9 (55.9 cm x 22.9 cm), ultra-bright machined and painted Midnight Silver

Years 2017–19, 2025–27 Models 4 Factory citations 13

Also described as Wheels, 22 x 9.0 (55.9 cm x 22.9 cm) aluminum, painted Deep Space, gloss black painted pockets, high gloss black painted insertsWheels, 22 x 9 6-spoke chrome

Also documented for Chevrolet

Documented applications

Sierra EV — BT1 (2024–2027)

2026–2027 Factory-verified

2026: requires A8H; 2027: included with and only available with WJU, not available with YDH; 2026: A in 3SC; not offered in 3SB, 4SC, 4SD, 5SB, 5SC, 5SD; 2027: A in 5SC; not offered in 3SB, 3SC, 4SC, 4SD, 5SD

GM factory document — 2026 gmc sierra ev fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra ev fleet order guide, p.20.
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.37.

Yukon — K2XX (2015–2020)

2017–2019 Factory-verified

A on all trims; 2019 requires SFE; 2018 from GM's 2018 Yukon order guide

GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.32.
GM factory document — 2019 gmc yukon denali fleet order guide wayback, p.1.
GM factory document — 2018 gmc yukon order guide copy gm authority, p.29.

Yukon — T1XX (2021–2027)

2025–2027 Factory-verified

2027: Denali: O

GM factory document — 2025 gmc new yukon denali fleet order guide, p.29.
GM factory document — 2026 gmc yukon denali fleet order guide, p.30.
GM factory document — 2027 gmc yukon fleet order guide, p.27.

Yukon XL — T1XX (2021–2027)

2025–2027 Factory-verified

2027: Denali: O

GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.30.
GM factory document — 2026 gmc yukon xl denali fleet order guide, p.31.
GM factory document — 2027 gmc yukon xl fleet order guide, p.27.

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