Audio system, Buick Infotainment System with navigation, AM/FM stereo, SiriusXM, with 8" diagonal color touch screen, 2 USB ports inside center console, auxiliary input jack, Bluetooth streaming for audio and select phones, phone integration for Apple CarPlay and Android Auto

Years 2014–19 Models 7 Factory citations 14

Also described as Audio system, Buick Infotainment System with navigation, AM/FM stereo, SiriusXM, 8 inch diagonal color touch screenAudio system, Buick IntelliLink (Buick Infotainment System from 2018), with navigation, AM/FM stereoAudio system, Buick IntelliLink radio with navigation, AM/FM stereo, 2 USB ports, Bluetooth, Apple CarPlay and Android AutoAudio system, Buick IntelliLink radio with navigation, AM/FM stereo and CD player, USB port, Bluetooth audio streamingAudio system, Buick Infotainment System with navigation, AM/FM stereoAudio system, Buick IntelliLink radio with navigation, AM/FM stereo and CD player

Also documented for Cadillac Chevrolet GMC

Documented applications

Enclave — C1XX (2018–2024)

2018–2019 Factory-verified

Essence, Premium: O; Avenir: S; includes KI6 120-volt outlet; replaced by IOT for 2020, so 2019 from GM Authority's 2020 changes page

GM factory document — 2018 buick enclave fleet order guide wayback, p.1.

Encore — Gamma II (2013–2022)

2018–2019 Factory-verified

2018: Sport Touring (requires CJ2), Preferred II, Essence, Premium: O, and with PCJ; 2019: Sport Touring, Essence: O; HD Radio with UQA; letter O in the code as GM prints it; GM prints no zero form

GM factory document — 2018 buick encore order guide copy gm authority, p.15.
GM factory document — 2019 buick encore order guide copy gm authority, p.13.

Envision — D2XX, imported from China (2016–2020)

2016–2019 Factory-verified

2019: 1SL, 1SN: O; 1SP: S; letter O in the code as GM prints it; GM prints no zero form; the 2016 and 2017 guides add SiriusXM and an 8 inch diagonal color touch screen, the 2016 guide a CD/MP3 player and SD card reader, the 2017–2019 guides Apple CarPlay and Android Auto

GM factory document — 2016 buick envision order guide copy gm authority, p.1, p.10.
GM factory document — 2017 buick envision order guide copy gm authority, p.1, p.12.
GM factory document — 2018 buick envision order guide copy gm authority, p.1, p.12.
GM factory document — 2019 buick envision order guide copy gm authority, p.1, p.13.

LaCrosse — E2XX, 3rd gen (2017–2019)

2017–2019 Factory-verified

2019: Avenir: S; Sport Touring, Essence, Premium: O; with WPY; the 2018–2019 guides call it the Buick Infotainment System with Navigation

GM factory document — 2017 buick lacrosse fleet order guide wayback, p.2.
GM factory document — 2018 buick lacrosse order guide copy gm authority, p.13.
GM factory document — 2019 buick lacrosse order guide copy gm authority, p.2.

LaCrosse — Epsilon II, 2nd gen (2010–2016)

2015–2016 Factory-verified

2015: 1SL, 1SP: O; the capture prints no mark in the 1SR column; requires UQS; part of PDU; 2016: next generation system (GM Authority 2016 changes); letter O in the code as GM prints it; GM prints no zero form

GM factory document — 2015 buick lacrosse fleet order guide wayback, p.2.

Regal — E2XX (2018–2020)

2018 Factory-verified

letter O in the code as GM prints it; GM prints no zero form

GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1.
GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1.

Regal — Epsilon II, 5th gen (2011–2017)

2014, 2016–2017 Factory-verified

new for 2014, with Bluetooth (GM's 2014 list); 2016: 1SL, 1SN: O; 1SP, 1SX: S; next-generation screen and 2 USB ports for 2016 (GM Authority 2016 changes); adds Apple CarPlay and Android Auto (GM's 2017 list)

GM factory document — 2016 buick regal order guide copy gm authority, p.1, p.10, p.15, p.36.

This page aggregates every documented appearance of IO6 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.