T1C ✓ Factory-verified

Pontiac · Regular Production Option

Shifter interlock, European theft park lock system

Years 2001–04 Models 1 Factory citations 3

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Also documented for CadillacOldsmobile

Documented applications

Grand Am — Fifth generation (1999–2005) →

• 2001–2004 ✓ Factory-verified

  The 2003 and 2004 lists print "Shiftier".

  ⛭ GM factory document — 2001 pontiac grand am rpo code list, p.1.

  ⛭ GM factory document — 2003 pontiac grand am rpo code list, p.1.

  ⛭ GM factory document — 2004 pontiac grand am rpo code list, p.1.

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