Interior trim, Sky Cool Gray/Jet Black with Santorini Blue accents, leather seating surfaces with mini-perforated inserts, Twenty Two high-gloss genuine Carbon Fiber trim, Jet Black accent inserts in seatback

Years 2025 Models 1 Factory citations 1

Documented applications

XT4 — E2 (2019–2025)

2025 Factory-verified

Premium Luxury: not available; Sport: O; requires WPC

GM factory document — 2025 cadillac xt4 fleet order guide, p.29.

This page aggregates every documented appearance of HSP in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.