- 2014, 2018–2019 Factory-verified
all trims: O; the 2018–2019 guides say it requires the LUV engine
KPK Factory-verified
Also documented for ChevroletGMC
Documented applications
This page aggregates every documented appearance of KPK in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.