UM1 ✓ Factory-verified

Chevrolet · Regular Production Option

Radio, AM/FM stereo, auto reverse cassette (UT6 radio), equalizer, clock, ETR, with compact disc (remote CD)

Years 1970–82, 1998–99 Models 5 Factory citations 6

Query this via API →

Also described as AM radio w/ stereo 8-trackAM Push Button Radio & Tape PlayerRadio AM/tape playerStereo tape system w/AM radio

Also documented for OldsmobilePontiac

Documented applications

Camaro →

• 1970s–1981 ● Confirmed

Chevelle / El Camino →

• 1970–1972 ✓ Factory-verified
  ⛭ GM Heritage factory kit — 1970 Chevrolet Chevelle, p.20.

  ⛭ GM Heritage factory kit — 1972 Chevrolet Chevelle, p.57.

Impala / Full-Size →

• 1970- ● Confirmed

Nova / Chevy II →

• 1975–1979 ✓ Factory-verified
  ⛭ GM Heritage factory kit — 1975 Chevrolet Nova, p.150.

  ⛭ GM Heritage factory kit — 1979 Chevrolet Nova, p.34.

Venture — U-body minivan (1997–2005) →

• 1998, 1999 ✓ Factory-verified

  requires UZ5

  ⛭ GM factory document — 1998 chevrolet venture ext rpo code list, p.1.

  ⛭ GM factory document — 1999 chevrolet venture ext rpo code list, p.1.

Related codes · mentioned in these notes

UZ5

This page aggregates every documented appearance of UM1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.