Radio, AM/FM stereo, seek/scan, auto reverse music search cassette, compact disc, HPS, clock

Years 1990–96, 1999–02 Models 3 Factory citations 15

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Also described as Radio, AM/FM stereo, seek/scan, auto reverse music search cassette, compact disc, HPS, clock, ETR

Also documented for Buick GMC Oldsmobile

Documented applications

Blazer — S-10 second generation (1995–2005)

1999–2002 Factory-verified

1999 list reads compact disc, clock, ETR with no cassette

GM factory document — 1999 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2000 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2001 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2002 chevrolet blazer 4wd rpo code list, p.1.

Corvette — C4 (1984–1996)

1990–1996 Factory-verified

the 1990 list words it "AM/FM Stereo, Cassette With Compact Disc Player"; the order guides call it the Delco/Bose music system with cassette and CD players; 1991 from the brochure only (p.6), the 1991 order guide (p.10) offering the CD system with no code; the 1990, 1991, 1992–1993 and 1995 pages print UIF

GM Heritage factory kit — 1990 Chevrolet Corvette, p.31.
GM Heritage factory kit — 1991 Chevrolet Corvette, p.6.
GM Heritage factory kit — 1992 Chevrolet Corvette, p.32.
GM Heritage factory kit — 1993 Chevrolet Corvette, p.18.
GM Heritage factory kit — 1994 Chevrolet Corvette, p.64.
GM Heritage factory kit — 1995 Chevrolet Corvette, p.104.
GM Heritage factory kit — 1996 Chevrolet Corvette, p.62.

S-10 pickup — Second generation (1994–2004)

1999–2002 Factory-verified

1999 list reads compact disc, clock, ETR with no cassette. The 2002 list reads as the 2001 list.

GM factory document — 1999 chevrolet s10 pickup 4wd rpo code list, p.1.
GM factory document — 2000 chevrolet s10 pickup 4wd rpo code list, p.1.
GM factory document — 2001 chevrolet s10 pickup 4wd rpo code list, p.1.
GM factory document — 2002 chevrolet s10 pickup 4wd rpo code list, p.1.

This page aggregates every documented appearance of U1F in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.