1SK ✓ Factory-verified

Cadillac · Regular Production Option

Equipment group 1SK, Premium Luxury V-Sport Twin Turbo

Years 2007–09, 2014–15, 2017, 2025–27 Models 5 Factory citations 8

Query this via API →

Also described as Equipment group, Premium, 2.0L turbo, all-wheel driveOption package 10Trim group, Signature SportPackage, option 10

Also documented for ChevroletGMC

Documented applications

ATS — Alpha (2013–2019) →

• 2014–2015 ✓ Factory-verified

  6AG69 sedan, 6AG47 coupe

  ⛭ 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.

CTS — Sigma / GMX320 (2003–2007) →

• 2007 ✓ Factory-verified
  ⛭ GM factory document — 2007 cadillac cts rpo code list, p.1.

Lyriq — BEV3 (2023–2027) →

• 2025–2027 ✓ Factory-verified

  model 6MC26 RWD/AWD; the 2025 guide heads it Sport

  ⛭ GM factory document — 2025 cadillac all electric lyriq fleet order guide, p.1.

  ⛭ GM factory document — 2026 cadillac all electric lyriq lyriq v fleet order guide, p.1.

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

SRX — Sigma / GMT265 (2004–2009) →

• 2008–2009 ✓ Factory-verified
  ⛭ GM factory document — 2008 cadillac srx rpo code list, p.1.

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

XTS — Epsilon II, enlarged (2013–2019) →

• 2017 ● Confirmed

  renamed from Premium V-Sport Twin Turbo 1SK for the model year (GM Authority 2017 XTS changes); the 2018 list deletes the trim

Related codes · mentioned in these notes

V

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