- 2018 Single-source
new for 2018; LT; includes KA1, UVD, DD8, UG1, KI6, AP9, B58 and B36 (GM Authority's 2018 Impala article, narrative package-contents section, which is not the credited 'Official RPO Changes' list)
- 2019 Confirmed
H0U available with it (GM's 2019 Impala RPO change list, GM Authority)
PI5 Confirmed
Documented applications
This page aggregates every documented appearance of PI5 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.