Transmission, automatic, 4 speed, HMD, 4L60-E, electronic

Years 1994–96, 2004–07 Models 2 Factory citations 5

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Also described as Transmission, 4 speed automatic

Also documented for Cadillac Chevrolet GMC Hummer Oldsmobile Pontiac

Documented applications

Rainier — GMT360 (2004–2007)

2004–2007 Factory-verified

GM factory document — 2004 buick rainier 2wd rpo code list, p.1.
GM factory document — 2007 buick rainier rpo code list, p.1.

Roadmaster — B-body (1991–1996)

1994–1996 Factory-verified

the electronically controlled 4L60-E; Wikipedia's 4L60-E article names it RPO M30 and lists the Roadmaster for 1994–1996, which dates every year; shared B-body code; cited from the Chevrolet Caprice kit's MVMA specification pages for model years 1994 (the LT1 engine page), 1995 and 1996 (power teams, M30 with the LT1); the 1994 pages whose year field reads '•394' or '*394' (pp.37, 57) are not cited

GM Heritage factory kit — 1994 Chevrolet Caprice, p.38.
GM Heritage factory kit — 1995 Chevrolet Caprice, p.18.
GM Heritage factory kit — 1996 Chevrolet Caprice, p.22.

This page aggregates every documented appearance of M30 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.