Interior trim, Ebony seats with Ebony interior accents, sport front buckets, perforated leather

Years 2019 Models 1 Factory citations 1

Also documented for Chevrolet

Documented applications

Regal — E2XX (2018–2020)

2019 Factory-verified

only in: GS; seat A51 front bucket; 2019 (2019 Sportback order guide)

GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32.

This page aggregates every documented appearance of HX1 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.