Comfort package

Years 2019 Models 1 Factory citations 1

Also documented for Buick Cadillac

Documented applications

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

2019 Factory-verified

Denali: O; includes KU1, KU3 and KA6

GM factory document — 2019 gmc terrain order guide copy gm authority, p.26.

This page aggregates every documented appearance of PS1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.