- 1983–1986, 1990 Factory-verified
the joint books name it the Silverado/Sierra Classic model option (1983–1986) and the Silverado/SLE trim (1990); Sierra Classic and SLE are the GMC names, and the Chevrolet K5 Blazer doc reads it as the Silverado decor package; 1991 is left out because the Chevrolet-only 1991 book names YE9 only as the Silverado trim; the 1984 price page prints YEO; shared square-body platform code; cited from the Chevrolet Blazer kit
GM Heritage factory kit — 1983 Chevrolet Blazer, p.7.GM Heritage factory kit — 1984 Chevrolet Blazer RV Full Size, p.24.GM Heritage factory kit — 1985 Chevrolet Blazer RV Full Size, p.9.GM Heritage factory kit — 1986 Chevrolet Blazer, p.9.GM Heritage factory kit — 1990 Chevrolet Blazer, p.16.
Also described as Decor package, Sierra ClassicComfort and decor level 3 (uplevel decor)
Also documented for CadillacChevrolet
Documented applications
- 1998–2000 Factory-verified
- 1999–2007 Factory-verified
- 2009 Factory-verified
- 2001–2007 Factory-verified
- 2007–2009 Factory-verified
- 1983–1987 Factory-verified
shared platform code; cited from the square-body C/K pickup kits; the kits print it as the Silverado/Sierra Classic model option, Sierra Classic being the GMC name (the Chevrolet C/K doc reads it as the Silverado decor package)
GM Heritage factory kit — 1983 Chevrolet Truck, p.28.GM Heritage factory kit — 1984 Chevrolet Truck, p.54.GM Heritage factory kit — 1985 Chevrolet Truck, p.52.GM Heritage factory kit — 1986 Chevrolet Truck, p.150.GM Heritage factory kit — 1987 Chevrolet Truck, p.68.
- 1998–1999 Factory-verified
- 1983–1990 Factory-verified
the joint books name it the Silverado/Sierra Classic model option to 1988 and the Silverado/SLE trim in 1989–1990 (Sierra Classic and SLE are the GMC names); the Chevrolet Suburban doc reads it as the Silverado decor package; 1991 is left out because the 1991 book is a Chevrolet-only book that names YE9 only as the Silverado trim; 1983, 1984 and 1986 rest on requirement remarks in other entries (custom seat trim, B32 floor mats and C60 air conditioning priced or available only with YE9); the 1985 and 1987 pages also print YEI and YEO; shared square-body platform code; cited from the Chevrolet Suburban kit
GM Heritage factory kit — 1983 Chevrolet Suburban, p.13.GM Heritage factory kit — 1984 Chevrolet Suburban, p.19.GM Heritage factory kit — 1985 Chevrolet Suburban, p.14.GM Heritage factory kit — 1986 Chevrolet Suburban, p.18.GM Heritage factory kit — 1987 Chevrolet Suburban, p.20.GM Heritage factory kit — 1988 Chevrolet Suburban, p.14.GM Heritage factory kit — 1989 Chevrolet Suburban, p.17.GM Heritage factory kit — 1990 Chevrolet Suburban, p.19.
- 1998–1999 Factory-verified
- 2000–2006 Factory-verified
the 2000 list words it as uplevel decor
- 2007–2009 Factory-verified
This page aggregates every documented appearance of YE9 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.