Lamps, front cornering

Years 2018, 2025–27 Models 4 Factory citations 14

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Also described as LED lamps, front corneringLamps, front cornering, LED

Also documented for Buick Chevrolet Oldsmobile Pontiac

Documented applications

CT4 — Alpha 2 (2020–2026)

2025–2026 Factory-verified

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

GM factory document — 2025 cadillac ct4 fleet order guide, p.26.
GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.5.
GM factory document — 2026 cadillac ct4 fleet order guide, p.23.
GM factory document — 2026 cadillac ct4 v ct4 v blackwing fleet order guide, p.5.

CT5 — Alpha 2 (2020–2026)

2025–2026 Factory-verified

Premium Luxury, Sport: O; 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.21.
GM factory document — 2026 cadillac ct5 fleet order guide, p.22.
GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide, p.6.
GM factory document — 2026 cadillac ct5 v ct5 v blackwing fleet order guide, p.7.

Escalade IQ — Ultium BEV (2025–2027)

2025–2027 Factory-verified

GM factory document — 2025 cadillac all electric escalade iq fleet order guide rpo codes, p.1.
GM factory document — 2027 cadillac all electric escalade iql fleet order guide rpo codes, p.1.

XTS — Epsilon II, enlarged (2013–2019)

2018 Confirmed

Premium Luxury and Platinum models (GM Authority 2018 XTS changes)

This page aggregates every documented appearance of T87 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.