2004 Lincoln Navigator
Key Replacement - Save vs Dealer in Ventura County

2004 Lincoln Navigator Remote Head Key Replacement - Fast, Affordable & Professional

A graphic designer in the San Roque neighborhood of Santa Barbara called me from a steep one-lane residential street off Foothill Road. No turnout, no room for a flatbed. His 2004 Navigator was parked nose-up on the hill with zero working keys.

He had already called the Lincoln dealer. They told him the vehicle needed to come to them first. He explained the situation. They repeated the same line. He asked about a tow. The flatbed company drove out, looked at the grade and the narrow lane, and left.

When I got there, I parked my van at the bottom and walked up with my bag. Lishi H75 pick/decoder, key machine remote, OBD cable, and a fresh CWTWB1U793 shell with a 4D63 40-bit chip inside.

I decoded the wafers through the driver door lock, called the cuts down to my machine, and had a blade done in a few minutes. Then came the PATS part. All-keys-lost on these older Ford/Lincoln PATS II platforms means cycling through the security timer via OBD. The PCM module needs to authenticate the new transponder, and the system enforces two 10-minute wait periods back to back. Not something you can skip.

While the timer counted down, we stood on the hill talking about his design work. He kept glancing at the Navigator like it might roll.

Key turned, engine fired, all three remote buttons tested clean. His car never moved an inch until he drove it himself.

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