U1L ✓ Factory-verified

Chevrolet · Regular Production Option

Radio, AM stereo/FM stereo, seek/scan, auto reverse, music search, cassette, clock, ETR

Years 2004–05 Models 1 Factory citations 2

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Also documented for CadillacGMC

Documented applications

Express — GMT610 (2003–2027) →

• 2004–2005 ✓ Factory-verified
  ⛭ GM factory document — 2004 chevrolet express rpo code list, p.1.

  ⛭ GM factory document — 2005 chevrolet express rpo code list, p.1.

This page aggregates every documented appearance of U1L in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.