A31 / AU3 ◑ Single-source

Buick · Regular Production Option

Power windows / electric door locks

Years 1970–77 Models 2

Also described as Power windows / power door locks

Documented applications

Full-Size — LeSabre / Electra / Wildcat →

• 1970–1976 ◑ Single-source

  Full-size

Regal / Century →

• 1973–1977 ◑ Single-source

  Century, Regal

This page aggregates every documented appearance of A31 / AU3 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.