J ✓ Factory-verified

Cadillac · Regular Production Option

Rear radio control

Years 1960–68 Models 2 Factory citations 5

Also described as Twilight SentinelRear center seat belt

Documented applications

DeVille / Calais →

• 1960 ✓ Factory-verified

  Series 75 only

  ⛭ GM Heritage factory kit — 1960 Cadillac VVI, p.194.
• 1961–62 ✓ Factory-verified

  Series 75 only

  ⛭ GM Heritage factory kit — 1961 Cadillac VVI, p.129.

  ⛭ GM Heritage factory kit — 1962 Cadillac VVI, p.150.
• 1963 ● Confirmed

  Series 75 only

• 1964 ● Confirmed

  New

• 1965 ✓ Factory-verified

  All

  ⛭ GM Heritage factory kit — 1965 Cadillac VVI, p.153.
• 1966 ✓ Factory-verified

  All

  ⛭ GM Heritage factory kit — 1966 Cadillac VVI, p.71.
• 1967–68 ● Confirmed

  All

• 1967 ◑ Single-source

  Per CLC individual list

Fleetwood →

• 1960–63 ● Confirmed

  Series 75 only

  Grade note: confirmed (1963 via 63/64 decode)

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