KA1 Factory-verified

Cadillac · Regular Production Option

Seats, heated, driver and front passenger

Years 1998–09, 2014–18, 2023, 2025–27 Models 24 Factory citations 73

Also described as Heater, seat, frontSeats, heated driver and front passengerHeater, seatSeats, heated, driver and passenger, high back bucket with leatherHeated front seats

Also documented for Buick Chevrolet GMC Hummer Oldsmobile Pontiac Saturn

Documented applications

ATS — Alpha (2013–2019)

2014–2015, 2018 Factory-verified

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.

Catera — V-body (1997–2001)

1999–2001 Factory-verified

the 1999 list prints "Heated Seats"

GM factory document — 1999 cadillac catera rpo code list, p.1.
GM factory document — 2000 cadillac catera rpo code list, p.1.
GM factory document — 2001 cadillac catera rpo code list, p.1.

CT4 — Alpha 2 (2020–2026)

2025–2026 Factory-verified

2025: V-Series Blackwing: S; Luxury, Premium Luxury, Sport, V-Series: O; 2026: all trims: S

GM factory document — 2025 cadillac ct4 fleet order guide, p.23.
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.

CT6 — Omega (2016–2020)

2017 Factory-verified

base: O with UEU; Luxury, Premium Luxury, Platinum: S

GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2.

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

2014: CTS-V Coupe, CTS-V Sedan: S; in Y44 on the other coupes, replaced by KB6 with Y41

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

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.

DeVille — G-body (2000–2005)

2000–2005 Factory-verified

GM factory document — 2000 cadillac deville rpo code list, p.1.
GM factory document — 2005 cadillac deville rpo code list, p.1.

DeVille — K-body (1994–1999)

1998–1999 Factory-verified

GM factory document — 1998 cadillac deville rpo code list, p.1.
GM factory document — 1999 cadillac deville rpo code list, p.1.

Eldorado — E-body (1992–2002)

1998–2002 Factory-verified

GM factory document — 1998 cadillac eldorado rpo code list, p.1.
GM factory document — 1999 cadillac eldorado rpo code list, p.1.
GM factory document — 2000 cadillac eldorado rpo code list, p.1.
GM factory document — 2001 cadillac eldorado rpo code list, p.1.
GM factory document — 2002 cadillac eldorado rpo code list, p.1.

Escalade EXT — GMT900 (2007–2013)

2009 Factory-verified

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 — GMT900 (2007–2014)

2009 Factory-verified

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

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.11.
GM factory document — 2025 cadillac new escalade escalade v fleet order guide, p.4.
GM factory document — 2027 cadillac escalade escalade v fleet order guide, p.5.

Lyriq — BEV3 (2023–2027)

2023, 2025–2027 Factory-verified

all trims: S; Professional Vehicle (S)

GM factory document — 2023 cadillac all new electric lyriq fleet order guide wayback, p.3.
GM factory document — 2025 cadillac all electric lyriq fleet order guide rpo codes, p.1.
GM factory document — 2027 cadillac all electric lyriq professional vehicle fleet order guide rpo codes, p.1.

Seville — G-body (1998–2004)

1998–2004 Factory-verified

GM factory document — 1998 cadillac seville rpo code list, p.1.
GM factory document — 1999 cadillac seville rpo code list, p.1.
GM factory document — 2000 cadillac seville rpo code list, p.1.
GM factory document — 2001 cadillac seville rpo code list, p.1.
GM factory document — 2002 cadillac seville rpo code list, p.1.
GM factory document — 2003 cadillac seville rpo code list, p.1.
GM factory document — 2004 cadillac seville rpo code list, p.1.

SRX — Sigma / GMT265 (2004–2009)

2004–2009 Factory-verified

GM factory document — 2004 cadillac srx rpo code list, p.1.
GM factory document — 2009 cadillac srx rpo code list, p.1.

SRX — Theta Premium / GMT166 (2010–2016)

2016 Confirmed

not offered on Standard; GM's 2016 SRX order guide (GM Authority's copy, published September 18, 2015)

STS — Sigma (2005–2011)

2005–2009 Factory-verified

GM factory document — 2005 cadillac sts rpo code list, p.1.
GM factory document — 2009 cadillac sts rpo code list, p.1.

XLR — Y-body (2004–2009)

2008–2009 Factory-verified

GM factory document — 2008 cadillac xlr rpo code list, p.1.
GM factory document — 2009 cadillac xlr rpo code list, p.1.

XT4 — E2 (2019–2025)

2025 Factory-verified

Premium Luxury, Sport: O; included only with Y19

GM factory document — 2025 cadillac xt4 fleet order guide, p.18.
GM factory document — 2025 cadillac xt4 fleet order guide rpo codes, p.1.

XT5 — C1XX (2017–2026)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 cadillac xt5 fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac xt5 professional vehicles fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac xt5 fleet order guide, p.4.
GM factory document — 2025 cadillac xt5 fleet order guide, p.26.
GM factory document — 2026 cadillac xt5 fleet order guide, p.5.
GM factory document — 2026 cadillac xt5 fleet order guide, p.26.

XT6 — C1XX (2020–2025)

2025 Factory-verified

All trims: S

GM factory document — 2025 cadillac xt6 fleet order guide, p.5.
GM factory document — 2025 cadillac xt6 fleet order guide, p.63.

This page aggregates every documented appearance of KA1 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.