Chevrolet MyLink audio system, 4.2 inch diagonal color screen, AM/FM stereo, USB ports, auxiliary jack, SD card slot

Years 2015–16 Models 2 Factory citations 3

Also described as Audio system, Chevrolet MyLink, 4.2 inch diagonal color screen, AM/FM stereo, USB port, auxiliary jack, Bluetooth

Also documented for GMC

Documented applications

Colorado — Second generation (GMT31XX) (2015–2022)

2015–2016 Factory-verified

2015: WT: O; Base, LT, Z71: not offered; includes UE1 and VV4; the merged Canyon doc reads IntelliLink for the GMC version

GM factory document — 2015 chevrolet colorado fleet order guide wayback, p.2.
GM factory document — 2016 chevrolet canyon colorado electrical body builders manual service manual 2016 en us, p.10.

Silverado — K2XX (2014–2019)

2015 Factory-verified

the code is written with the letter O in GM's lists.

GM factory document — 2015 chevrolet silverado 1500 fleet order guide wayback, p.1.

This page aggregates every documented appearance of IO4 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.