U1C Factory-verified

GMC · Regular Production Option

Radio, AM/FM stereo, seek/scan, CD, clock, ETR

Years 1998, 2001–10, 2014 Models 6 Factory citations 13

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Also described as Radio, AM/FM stereo, seek/scan, compact disc, clock, ETR

Also documented for Buick Chevrolet Oldsmobile Pontiac Saturn

Documented applications

Jimmy — second generation (1995–2001)

1998 Factory-verified

GM factory document — 1998 gmc jimmy 4wd rpo code list, p.1.

Savana — GMT600 (1996–2002)

2001–2002 Factory-verified

GM factory document — 2001 gmc savana rpo code list, p.1.
GM factory document — 2002 gmc savana rpo code list, p.1.

Savana — GMT610 (2003–2027)

2003–2010, 2014 Factory-verified

GM factory document — 2003 gmc savana rpo code list, p.1.
GM factory document — 2008 gmc savana rpo code list, p.1.
GM factory document — 2008 chevrolet ld electricalfullsizevans, p.18.
GM factory document — 2009 gmc savana rpo code list, p.1.
GM factory document — 2009 chevrolet ld electricalfullsizevans 100813, p.16.
GM factory document — 2010 chevrolet gh van elec 1 7 d1 100813, p.16.
GM factory document — 2014 chevrolet gh van elec bbm si brief, p.7.

Sierra — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.

Sierra HD — GMT900 (2007–2014)

2009 Factory-verified

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.

Sonoma — second generation (1994–2004)

1998 Factory-verified

GM factory document — 1998 gmc sonoma pickup 4wd rpo code list, p.1.

This page aggregates every documented appearance of U1C in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.