K6L ✓ Factory-verified

Cadillac · Regular Production Option

Air filter, pollutant, odor and fine dust

Years 2023, 2025–27 Models 4 Factory citations 16

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Also described as Cabin air filter, pollutant, odor and fine dust

Also documented for BuickChevroletGMC

Documented applications

CT4 — Alpha 2 (2020–2026) →

• 2025–2026 ✓ Factory-verified

  Premium Luxury, Sport, V-Series, V-Series Blackwing: O

  ⛭ GM factory document — 2025 cadillac ct4 fleet order guide, p.18.

  ⛭ GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.18.

  ⛭ GM factory document — 2026 cadillac ct4 fleet order guide, p.16.

  ⛭ GM factory document — 2026 cadillac ct4 v ct4 v blackwing fleet order guide, p.18.

CT5 — Alpha 2 (2020–2026) →

• 2025–2026 ✓ Factory-verified

  Premium Luxury, Sport: O; 2025: V-Series, V-Series Blackwing: O; 2026: V-Series: O; V-Series Blackwing: S

  ⛭ GM factory document — 2025 cadillac ct5 fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 cadillac ct5 fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 cadillac ct5 v ct5 v blackwing fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 cadillac ct5 fleet order guide, p.14.

  ⛭ GM factory document — 2026 cadillac ct5 fleet order guide, p.16.

  ⛭ GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide, p.19.

  ⛭ GM factory document — 2026 cadillac ct5 v ct5 v blackwing fleet order guide, p.1.

Escalade — T1XX, 5th gen (2021–2027) →

• 2023, 2025–2027 ✓ Factory-verified

  2027: S on all trims

  ⛭ GM factory document — 2023 cadillac 23 escalade escalade esv electrical body builder sm en us 2022oct25, p.11.

  ⛭ GM factory document — 2025 cadillac new escalade escalade v fleet order guide, p.1.

  ⛭ GM factory document — 2027 cadillac escalade escalade v fleet order guide, p.1.

Lyriq — BEV3 (2023–2027) →

• 2023 ✓ Factory-verified

  K6J gives the 2025 to 2027 form without odor

  ⛭ GM factory document — 2023 cadillac all new electric lyriq fleet order guide wayback, p.3.

Related codes · mentioned in these notes

K6JOSV

This page aggregates every documented appearance of K6L in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.