JL4 ✓ Factory-verified

Saturn · Regular Production Option

Control, active brake

Years 2005–08 Models 2 Factory citations 5

Query this via API →

Also documented for BuickCadillacChevroletGMCHummerOldsmobilePontiac

Documented applications

Relay — U-body / GMT201 (2005–2007) →

• 2005–2007 ✓ Factory-verified
  ⛭ GM factory document — 2005 saturn relay awd rpo code list, p.1.

  ⛭ GM factory document — 2006 saturn relay awd rpo code list, p.1.

  ⛭ GM factory document — 2007 saturn relay rpo code list, p.1.

Sky (2007–2009) →

• 2007, 2008 ✓ Factory-verified
  ⛭ GM factory document — 2007 saturn sky rpo code list, p.1.

  ⛭ GM factory document — 2008 saturn sky rpo code list, p.1.

This page aggregates every documented appearance of JL4 in the Saturn reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.