Seat, rear, split back, folding

Years 2003–09, 2014–15, 2018, 2023, 2025–26 Models 6 Factory citations 26

Also described as Seat, rear, split-foldingSeats, rear split-foldingSeat, rear split-folding, armrest, lockable seatback and lockable pass-through door

Also documented for Buick Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

ATS — Alpha (2013–2019)

2014–2015, 2018 Factory-verified

with armrest and trunk pass-through door in the sedan guides; 2-position in the coupe guides

GM factory document — 2014 cadillac ats fleet order guide wayback, p.4.
GM factory document — 2015 cadillac ats coupe fleet order guide wayback, p.2.
GM factory document — 2018 cadillac ats coupe fleet order guide wayback, p.2.
GM factory document — 2018 cadillac ats sedan fleet order guide wayback, p.2.
GM factory document — 2018 cadillac ats v fleet order guide wayback, p.2.

CT4 — Alpha 2 (2020–2026)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 cadillac ct4 fleet order guide, p.4.
GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.4.
GM factory document — 2026 cadillac ct4 fleet order guide, p.4.
GM factory document — 2026 cadillac ct4 v ct4 v blackwing fleet order guide, p.4.

CT5 — Alpha 2 (2020–2026)

2023, 2025–2026 Factory-verified

Premium Luxury, Sport: S; V-Series, V-Series Blackwing: S

GM factory document — 2023 cadillac ct5 v ct5 v blackwing fleet order guide wayback, p.1.
GM factory document — 2025 cadillac ct5 fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac ct5 fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac ct5 v ct5 v blackwing fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac ct5 fleet order guide, p.4.
GM factory document — 2026 cadillac ct5 fleet order guide, p.4.
GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide, p.4.
GM factory document — 2026 cadillac ct5 v ct5 v blackwing fleet order guide, p.4.

CTS — Alpha (2014–2019)

2014–2015, 2018 Factory-verified

GM factory document — 2014 cadillac cts sedan fleet order guide wayback, p.2.
GM factory document — 2015 cadillac cts sedan fleet order guide wayback, p.2.
GM factory document — 2018 cadillac cts sedan fleet order guide wayback, p.2.

CTS — Sigma II (2008–2015)

2008–2009, 2014 Factory-verified

every 2014 coupe: S

GM factory document — 2008 cadillac cts rpo code list, p.1.
GM factory document — 2009 cadillac cts rpo code list, p.1.
GM factory document — 2014 cadillac cts coupe and cts v coupe fleet order guide wayback, p.1.

CTS — Sigma / GMX320 (2003–2007)

2003–2007 Factory-verified

GM factory document — 2003 cadillac cts rpo code list, p.1.
GM factory document — 2007 cadillac cts rpo code list, p.1.

This page aggregates every documented appearance of AM9 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.