- 2018–2019 Factory-verified
2018: Preferred II, Essence, Premium: S; 2019: Essence: S; the 2019 guide names the pockets Technical Gray
RRU Factory-verified
Documented applications
This page aggregates every documented appearance of RRU in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.