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

Years 1994–96, 1999–00, 2002–06 Models 4 Factory citations 9

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Also described as Transmission, 4L60-E, 4 speed automatic, electronicTransmission, 4 speed automatic

Also documented for Buick Chevrolet GMC Hummer Oldsmobile Pontiac

Documented applications

Escalade EXT — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 cadillac escalade ext rpo code list, p.1.
GM factory document — 2006 cadillac escalade ext rpo code list, p.1.

Escalade — GMT400-based, GMT435 (1999–2000)

1999–2000 Factory-verified

the only transmission Wikipedia gives for this generation

GM factory document — 1999 cadillac escalade rpo code list, p.1.
GM factory document — 2000 cadillac escalade rpo code list, p.1.

Escalade — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 cadillac escalade 2wd rpo code list, p.1.
GM factory document — 2006 cadillac escalade rpo code list, p.1.

Fleetwood — D-body (1993–1996)

1994–1996 Single-source

the electronically controlled 4L60-E; Wikipedia's 4L60-E article names it RPO M30 and lists the Cadillac Fleetwood for 1994–1996, which dates every year; shared B-body code; corroborated by 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); Caprice kit pages are sibling corroboration only (owner rule 2026-11-05)

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 Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.