JL1 ✓ Factory-verified

Cadillac · Regular Production Option

Trailer brake controller, integrated

Years 2009, 2023, 2025–27 Models 4 Factory citations 7

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Also described as Control, integrated trailer brake

Also documented for ChevroletGMCPontiac

Documented applications

Escalade EXT — GMT900 (2007–2013) →

• 2009 ✓ Factory-verified
  ⛭ GM factory document — 2009 cadillac escalade ext rpo code list, p.1.

Escalade — GMT900 (2007–2014) →

• 2009 ✓ Factory-verified
  ⛭ GM factory document — 2009 cadillac escalade rpo code list, p.1.

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.

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.11.

  ⛭ GM factory document — 2027 cadillac escalade escalade v fleet order guide, p.13.

Related codes · mentioned in these notes

S

This page aggregates every documented appearance of JL1 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.