IOB ✓ Factory-verified

GMC · Regular Production Option

Audio system, 7 inch diagonal color touch screen, AM/FM, USB ports, auxiliary jack, Bluetooth audio, Apple CarPlay, Android Auto, voice control for radio and phone

Years 2016–19 Models 3 Factory citations 9

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Also described as Audio system, 7 inch diagonal color touch screen, GMC Infotainment System, AM/FM, USB ports, auxiliary jack, Bluetooth audioAudio system, 7 inch diagonal color touch screen, AM/FM, USB ports, auxiliary jack

Also documented for BuickChevrolet

Documented applications

Acadia — Second generation (C1XX) (2017–2023) →

• 2017–2019 ✓ Factory-verified

  2019 guide: SL, SLE-1: S; SLE-2: S (upgradeable); IntelliLink in 2017, GMC Infotainment System in 2018–2019; includes SiriusXM (U2K); upgradeable to IO5

  ⛭ GM factory document — 2017 gmc acadia order guide copy gm authority, p.1, p.16.

  ⛭ GM factory document — 2018 gmc acadia order guide copy gm authority, p.1, p.19.

  ⛭ GM factory document — 2019 gmc acadia order guide copy gm authority, p.1, p.20.

Sierra HD — K2XX (2015–2019) →

• 2018–2019 ✓ Factory-verified

  2019 marks: Sierra: S; SLE, SLT: not offered; 2018: GM's 2018 Sierra 2500HD order guide

  ⛭ GM factory document — 2019 gmc sierra 2500hd fleet order guide wayback, p.1.

  ⛭ GM factory document — 2018 gmc sierra 2500hd order guide copy gm authority, p.1.

Sierra — K2XX (2014–2019) →

• 2016–2019 ✓ Factory-verified

  new for 2016; the code is written with the letter O in GM's lists; IntelliLink in the 2016 guide, GMC Infotainment System in the 2018 and 2019 guides.

  ⛭ GM factory document — 2016 gmc sierra 1500 fleet order guide wayback, p.2.

  ⛭ GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.21.

  ⛭ GM factory document — 2018 gmc sierra 1500 order guide copy gm authority, p.88.

  ⛭ GM factory document — 2019 gmc sierra 1500 limited double cab k2xx order guide copy gm authority, p.39.

Related codes · mentioned in these notes

GMCIO5U2K

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