JA1 ◑ Single-source

Buick · Regular Production Option

Brake system, light-weight class

Years 1982–90 Models 1

Query this via API →

Also documented for ChevroletGMC

Documented applications

Century — A-body (1982–1996) →

• 1982–1990 ◑ Single-source internal

This page aggregates every documented appearance of JA1 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.