SD5 ✓ Factory-verified

Cadillac · Regular Production Option

LPO, tire pressure monitor

Years 2023, 2025–26 Models 3 Factory citations 5

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Also described as Tire pressure monitor (accessory)

Also documented for ChevroletGMC

Documented applications

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

• 2023, 2026 ✓ Factory-verified
  ⛭ GM factory document — 2023 cadillac 23 escalade escalade esv electrical body builder sm en us 2022oct25, p.12.

  ⛭ GM factory document — 2026 cadillac escalade escalade esv electrical body builder manual service manual 2026 en us, p.8.

Optiq — BEV3 (2025–2027) →

• 2025 ✓ Factory-verified
  ⛭ GM factory document — 2025 cadillac all electric optiq fleet order guide rpo codes, p.1.

XT5 — C1XX (2017–2026) →

• 2026 ✓ Factory-verified

  GM Authority 2024 accent packages article lists this code

  ⛭ GM factory document — 2026 cadillac xt5 fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 cadillac xt5 fleet order guide, p.32.

This page aggregates every documented appearance of SD5 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.