HI9 Factory-verified

Buick · Regular Production Option

Interior trim, Brandy with Ebony accents, perforated leather

Years 2017–20 Models 2 Factory citations 4
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Also documented for GMC

Documented applications

This page aggregates every documented appearance of HI9 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.