USB data ports, 2, one type-A and one type-C, SD card reader, auxiliary input jack, front center storage bin

Years 2019–20, 2022 Models 2 Factory citations 4

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Also described as Receptacle, memory card

Also documented for Cadillac Chevrolet

Documented applications

Sierra — T1XX (2019–2026)

2019–2020, 2022 Factory-verified

the 2020 list marks it not for the next new major program; the Silverado T1XX doc reads "USB ports, inside console with bucket seats or on instrument panel with bench seat"

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.12.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.12.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.12.

Terrain — Second generation (D2XX) (2018–2024)

2019 Factory-verified

SLE, SLE Diesel: O; SLT, SLT Diesel, Denali: S

GM factory document — 2019 gmc terrain order guide copy gm authority, p.3, p.28.

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