- 2025–2027 Factory-verified
includes SDE, RZW, 5KE; also named by GM Authority
PDE Factory-verified
Also described as LPO, Package, TraileringLPO, Winter/Summer Floor Mat Package
Also documented for ChevroletGMC
Documented applications
- 2019 Factory-verified
2019: Preferred, Sport Touring, Essence, Premium, Avenir: O
- 2019 Factory-verified
2019: Preferred, Preferred II, Essence, Avenir: O (2019 Sportback order guide)
This page aggregates every documented appearance of PDE in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.