Radio, AM/FM stereo, electronically tuned, seek and scan, cassette tape, graphic equalizer, digital clock

Years 1984–85, 1987–88, 1990 Models 4 Factory citations 7

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Also described as AM/FM stereo radio with cassette, clock and graphic equalizer, ETR full feature

Also documented for Saturn

Documented applications

Caprice — third generation, B-body (1983–1990)

1985, 1987–1988, 1990 Factory-verified

includes U79 (1988); the 1986 sheet prints 1L6 and is not cited

GM Heritage factory kit — 1985 Chevrolet Caprice, p.42.
GM Heritage factory kit — 1987 Chevrolet Caprice, p.45.
GM Heritage factory kit — 1988 Chevrolet Caprice, p.10.
GM Heritage factory kit — 1990 Chevrolet Caprice, p.6.

Cavalier — first generation (1982–1987)

1984 Factory-verified

seek and scan

GM Heritage factory kit — 1984 Chevrolet Cavalier, p.10.

Celebrity — A-body (1982–1990)

1984 Factory-verified

GM Heritage factory kit — 1984 Chevrolet Celebrity, p.42.

Impala — sixth generation, B-body (1983–1985)

1985 Factory-verified

all models; the sheet words it AM/FM stereo with equalizer, cassette and clock

GM Heritage factory kit — 1985 Chevrolet Caprice, p.42.

This page aggregates every documented appearance of UU6 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.