Washer, headlamp, high pressure

Years 2000–09 Models 3 Factory citations 8

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Also documented for Buick Cadillac Chevrolet Oldsmobile

Documented applications

Envoy — GMT360 (2002–2009)

2002–2009 Factory-verified

GM factory document — 2002 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2005 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2009 gmc envoy 4wd rpo code list, p.1.

Jimmy — second generation (1995–2001)

2000, 2001 Factory-verified

2000 list marks it export

GM factory document — 2000 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 2001 gmc jimmy 4wd rpo code list, p.1.

Sonoma — second generation (1994–2004)

2000–2002 Factory-verified

2000 list marks it export. The 2002 list reads as the 2001 list.

GM factory document — 2000 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2001 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2002 gmc sonoma pickup 4wd rpo code list, p.1.

This page aggregates every documented appearance of CE4 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.