- 2025–2026 Factory-verified
only in: CT4-V and CT4-V Blackwing; V-Series Blackwing: O; the 2025 CT4-V list reads "aluminum alloy"
RRR Factory-verified
Documented applications
This page aggregates every documented appearance of RRR in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.