- 1987 Confirmed
1987 from conceptcarz's 1987 list; the OSG gives no year; the rparts and Halderman lists agree
UL5 Factory-verified
Also described as Radio delete
Also documented for BuickCadillacChevroletGMCHummerOldsmobile
Documented applications
- 1987–1988, 1991 Factory-verified
Firebird years: 3rdgenformula option pages 1987–1988, 1991; shared F-body code; cited from the Camaro kits
GM Heritage factory kit — 1987 Chevrolet Camaro, p.7.GM Heritage factory kit — 1988 Chevrolet Camaro, p.30.GM Heritage factory kit — 1991 Chevrolet Camaro, p.27.
- 1998 Factory-verified
- 2001 Factory-verified
- 1998, 2005 Factory-verified
The 1998 list reads "Radio Delete"; the 2005 list reads "Radio".
This page aggregates every documented appearance of UL5 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.