Equipment group, CT6 base trim, 3.6L, all-wheel drive

Years 2006–09, 2014–17, 2019–20, 2023, 2025–27 Models 11 Factory citations 16

Also described as Equipment group, Luxury, 2.5LEquipment group, LuxuryEquipment group, CTS CoupeOption package 02Equipment group, Luxury trimEquipment group 1SBPackage, option 02Equipment group, Luxury CollectionEquipment group, Luxury, all-wheel driveEquipment group, Luxury, AWD

Also documented for Buick Chevrolet GMC Pontiac Saturn

Documented applications

ATS — Alpha (2013–2019)

2014 Factory-verified

model 6AC69, 2.5L rear-wheel drive

GM factory document — 2014 cadillac ats fleet order guide wayback, p.6.

CT4 — Alpha 2 (2020–2026)

2020, 2025–2026 Factory-verified

CT4 Luxury; 2020 from GM Authority's 2020 CT4 interior colors page

GM factory document — 2025 cadillac ct4 fleet order guide, p.1.
GM factory document — 2026 cadillac ct4 fleet order guide, p.1.

CT6 — Omega (2016–2020)

2017 Factory-verified

column heading of the guide's equipment pages (model 6KH69)

GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2.
GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4.

CTS — Sigma II (2008–2015)

2014 Factory-verified

the base CTS Coupe column of the Coupe guide, rear-wheel drive (6DP47) and all-wheel drive (6DH47)

GM factory document — 2014 cadillac cts coupe and cts v coupe fleet order guide wayback, p.1.

CTS — Sigma / GMX320 (2003–2007)

2007 Factory-verified

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

Escalade — K2XX (2015–2020)

2015, 2017, 2019 Factory-verified

the 2015 guide's Luxury column; NICB lists Luxury Collection for 2015–2016 and Luxury from 2017; GM Authority for 2017 (Collection dropped from the name) and 2019

GM factory document — 2015 cadillac escalade fleet order guide wayback, p.2.

Escalade — T1XX, 5th gen (2021–2027)

2023, 2025–2027 Factory-verified

2025: Premium Luxury; 2026–2027: Luxury

GM factory document — 2023 cadillac 23 escalade escalade esv electrical body builder sm en us 2022oct25, p.9.
GM factory document — 2025 cadillac new escalade escalade v fleet order guide, p.1.
GM factory document — 2027 cadillac escalade escalade v fleet order guide, p.1.

SRX — Sigma / GMT265 (2004–2009)

2006–2009 Factory-verified

GM factory document — 2006 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

FWD and AWD; GM's 2016 SRX order guide (GM Authority's copy, published September 18, 2015)

XT5 — C1XX (2017–2026)

2025–2026 Factory-verified

Luxury trim with the F48 all-wheel drive code standard; model number printed 6NF26

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

XT6 — C1XX (2020–2025)

2025 Factory-verified

AWD column of the Luxury model 6NV26; FWD is standard in 1SA and 1SC and F48 in 1SB, 1SD and 1SF

GM factory document — 2025 cadillac xt6 fleet order guide, p.7.

This page aggregates every documented appearance of 1SB in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.