- 2025–2026 Factory-verified
only in: CT4
E5K Factory-verified
Also described as LPO, Gloss Black grille trim
Also documented for Chevrolet
Documented applications
- 2026 Factory-verified
This page aggregates every documented appearance of E5K in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.