1ST ✓ Factory-verified

Cadillac · Regular Production Option

Equipment group, Premium, 3.6L, all-wheel drive

Years 2007, 2014–15 Models 2 Factory citations 3

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Also described as Option package 18

Also documented for BuickChevroletGMC

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.5.

  ⛭ GM factory document — 2015 cadillac ats coupe fleet order guide wayback, p.6.

CTS — Sigma / GMX320 (2003–2007) →

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

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