T1C ✓ Factory-verified

Cadillac · Regular Production Option

Shifter interlock, European theft park lock system

Years 2000–04 Models 1 Factory citations 5

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Also documented for OldsmobilePontiac

Documented applications

Seville — G-body (1998–2004) →

• 2000–2004 ✓ Factory-verified
  ⛭ 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.

This page aggregates every documented appearance of T1C in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.