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

Years 1998–99, 2009 Models 2 Factory citations 3

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Also described as Speedometer, instrument, miles

Also documented for Buick Chevrolet GMC Oldsmobile Saturn

Documented applications

Bonneville — H-body, 9th gen (1992–1999)

1998–1999 Factory-verified

GM's 1998 and 1999 lists print UC1 with the wording the corpus prints under U1C (~250 lists); likely a transposition of U1C.

GM factory document — 1998 pontiac bonneville rpo code list, p.1.
GM factory document — 1999 pontiac bonneville rpo code list, p.1.

G3 — Daewoo Kalos (T250) / Aveo5 twin (2009)

2009 Factory-verified

GM factory document — 2009 pontiac g3 rpo code list, p.1.

This page aggregates every documented appearance of UC1 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.