AU3 Factory-verified

Cadillac · Regular Production Option

Lock control, side door, electric

Years 1999–00, 2002–09, 2015–17, 2023, 2025–27 Models 8 Factory citations 18

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Also described as Locks, power doorDoor locks, power programmableDoor locks, power, side doorsDoor locks, power, programmable

Also documented for Buick Chevrolet GMC Hummer Oldsmobile Pontiac Saturn

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 EXT — GMT900 (2007–2013)

2007–2009 Factory-verified

GM factory document — 2007 cadillac escalade ext rpo code list, p.1.
GM factory document — 2009 cadillac escalade ext rpo code list, p.1.

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

1999–2000 Factory-verified

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.

Escalade — GMT900 (2007–2014)

2007–2009 Factory-verified

GM factory document — 2007 cadillac escalade rpo code list, p.1.
GM factory document — 2009 cadillac escalade rpo code list, p.1.

Escalade IQ — Ultium BEV (2025–2027)

2027 Factory-verified

GM factory document — 2027 cadillac all electric escalade iq fleet order guide rpo codes, p.1.
GM factory document — 2027 cadillac all electric escalade iql fleet order guide rpo codes, p.1.

Escalade — K2XX (2015–2020)

2015–2017 Factory-verified

2015: S on all trims

GM factory document — 2015 cadillac escalade fleet order guide wayback, p.2.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.4.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.13.

Escalade — T1XX, 5th gen (2021–2027)

2023, 2025–2027 Factory-verified

2027: S on all trims

GM factory document — 2023 cadillac 23 escalade escalade esv electrical body builder sm en us 2022oct25, p.10.
GM factory document — 2025 cadillac new escalade escalade v fleet order guide, p.2.
GM factory document — 2027 cadillac escalade escalade v fleet order guide, p.3.

This page aggregates every documented appearance of AU3 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.