Heater, seat, rear

Years 2002, 2004–09, 2014–18, 2023, 2025–27 Models 16 Factory citations 35

Also described as Comfort PackageSeats, heated, rear outboardHeater, rear seatSeats, second row, heatedHeated second-row seatsSeats, heated, second rowSeats, heated, rear outboard seating positionsSeats, heated rear outboard seating positions

Also documented for Buick Chevrolet GMC

Documented applications

CT6 — Omega (2016–2020)

2017 Factory-verified

Luxury, Premium Luxury: O; base, Platinum: not available; ventilated front seats and heated rear outboard seats; only with DRZ

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

CTS — Alpha (2014–2019)

2014–2015, 2018 Factory-verified

Vsport: not available

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 / GMX320 (2003–2007)

2005–2006 Factory-verified

GM factory document — 2005 cadillac cts rpo code list, p.1.
GM factory document — 2006 cadillac cts rpo code list, p.1.

DTS — G-body (2006–2011)

2006–2009 Factory-verified

GM factory document — 2006 cadillac dts rpo code list, p.1.
GM factory document — 2009 cadillac dts rpo code list, p.1.

Escalade EXT — GMT800 (2002–2006)

2002, 2004–2006 Factory-verified

the 2004–2006 lists read Rear Seat Heater

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 — GMT800 (2002–2006)

2002, 2004–2006 Factory-verified

the 2002 list words it "Heater Seat, Rear"

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 — 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.9.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.22.

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)

2025–2027 Factory-verified

2025: only in: Signature Luxury (1SE), Signature Sport (1SK) (S); 2026–2027: only in: Signature Luxury (1SE), Signature Sport (1SK), LYRIQ-V trims (S)

GM factory document — 2025 cadillac all electric lyriq fleet order guide rpo codes, p.1.
GM factory document — 2027 cadillac all electric lyriq lyriq v fleet order guide rpo codes, p.1.

SRX — Theta Premium / GMT166 (2010–2016)

2016 Confirmed

Standard: not offered; 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.

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.19.
GM factory document — 2025 cadillac xt4 fleet order guide rpo codes, p.1.

XT5 — C1XX (2017–2026)

2025–2026 Factory-verified

2025: Premium Luxury, Sport: O; Luxury: not available; 2026: Sport: S; Premium Luxury: O; Luxury: not available

GM factory document — 2025 cadillac xt5 fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac xt5 fleet order guide rpo codes, p.1.
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

Premium Luxury: S; Sport: 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 KA6 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.