Climate Package

Years 2023, 2025–26 Models 2 Factory citations 5

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Documented applications

CT4 — Alpha 2 (2020–2026)

2025–2026 Factory-verified

2025: Premium Luxury, Sport, V-Series, V-Series Blackwing: O; 2026: Premium Luxury, Sport, V-Series: S; V-Series Blackwing: O; the CT4 guides include heated and ventilated seats (KA1, KU9) and a heated steering wheel (KI3)

GM factory document — 2025 cadillac ct4 fleet order guide, p.10.
GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.11.
GM factory document — 2026 cadillac ct4 fleet order guide, p.1.
GM factory document — 2026 cadillac ct4 v ct4 v blackwing fleet order guide, p.1.

CT5 — Alpha 2 (2020–2026)

2023 Factory-verified

GM factory document — 2023 cadillac ct5 v ct5 v blackwing fleet order guide wayback, p.1.

This page aggregates every documented appearance of Y6F in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.