Seat adjuster, front passenger power lumbar

Years 2014–16 Models 1 Factory citations 1

Also documented for Chevrolet

Documented applications

Regal — Epsilon II, 5th gen (2011–2017)

2014–2016 Factory-verified

4-way in 2014 (GM's 2015 list); 2-way from 2015 (GM's 2015 list); 2016: 1SN, 1SP, 1SX: S; 2-way

GM factory document — 2016 buick regal order guide copy gm authority, p.4, p.18.

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