Audio system, 13.4 inch diagonal premium GMC Infotainment System with Google built in

Years 2022–27 Models 6 Factory citations 14

Also described as Audio system, 13.4 inch diagonal premium GMC infotainment systemRadio, infotainment system 3.x mid/high HMI, enhanced connectivity

Also documented for Chevrolet

Documented applications

Hummer EV Pickup (2022–2027)

2025 Factory-verified

GM factory document — 2025 gmc hummer ev pickup fleet order guide rpo codes, p.1.

Hummer EV SUV — BT1 (2024–2027)

2025 Factory-verified

SUV guide wording: Audio system, 13.4 inch diagonal Premium GMC Infotainment System with Google built-in apps such as navigation and voice assistance, color touch-screen, multi-touch display, AM/FM stereo, Bluetooth streaming audio, wireless Android Auto and Apple CarPlay capability. the 2026 guide lists the 13.4 inch system as IVE.

GM factory document — 2025 gmc hummer ev suv fleet order guide, p.1.

Sierra HD — T1XX (2020–2027)

2024–2027 Factory-verified

color touch-screen, AM/FM stereo, Bluetooth streaming; wireless Android Auto and Apple CarPlay capable; 2024: GM Authority 2024 changes page

GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.

Sierra — T1XX (2019–2026)

2023–2026 Factory-verified

the upfitter lists read "Radio, infotainment system 3.x mid/high HMI, enhanced connectivity 2.0, voice recognition"

GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.11.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.13.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.11.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Yukon — T1XX (2021–2027)

2022–2023 Factory-verified

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.

Yukon XL — T1XX (2021–2027)

2022–2023 Factory-verified

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.

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