- 2017–2019 Factory-verified
2019 guide: SLT-1, SLT-2: O; Denali: S; IntelliLink in 2017, GMC Infotainment System in 2018–2019
Also described as Audio system, 8 inch diagonal color touch screen with navigation, AM/FM/SiriusXM, USB ports, auxiliary jack, Bluetooth audio, Apple CarPlay, Android Auto, voice control for radio and phoneAudio system, 8 inch diagonal color touch screen, navigation, IntelliLink, AM/FM/SiriusXM, USB ports, auxiliary jack, BluetoothAudio system, 8 inch diagonal color touch screen with navigation, AM/FM/SiriusXM, USB ports, auxiliary jack, Bluetooth audio, voice recognitionAudio system, 8 inch diagonal color touch screen navigation, AM/FM/SiriusXM, HD Radio, USB ports, auxiliary jack
Also documented for BuickCadillacChevrolet
Documented applications
- 2015–2017 Factory-verified
2015–2016: SLE, SLT: O; SL, Canyon: not offered; requires UQA
- 2015, 2018–2019 Factory-verified
IntelliLink in 2015; GMC Infotainment System with HD Radio in the 2018 and 2019 guides; included in the Duramax plus package (PCH); 2015 marks: Sierra: not offered; SLE, SLT: O; 2018: GM's 2018 Sierra 2500HD order guide
- 2014, 2016–2018 Factory-verified
the code is written with the letter O in GM's lists; IntelliLink in the 2014 and 2016 guides, GMC Infotainment System in the 2018 guide; the 2014 guide adds an SD card slot, the 2016 guide Apple CarPlay; the Silverado K2XX doc reads Chevrolet MyLink.
- 2015–2019 Factory-verified
Denali: S; SLT: with PCJ; 2018–2019 read GMC Infotainment System; the lists add embedded navigation; the Escalade K2XX doc reads it as Cadillac CUE; 2018 from GM's 2018 Yukon order guide
- 2015–2017 Factory-verified
Denali: S; SLT: A, included with PCJ; SLE: not available; the code is written with the letter O in GM's guides and lists
This page aggregates every documented appearance of IO6 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.