2016 Porsche 911
Key Replacement - Save vs Dealer in San Diego

2016 Porsche 911 Smart Key Replacement - Fast, Affordable & Professional

Del Mar Village on a Tuesday morning. The owner had parked near the shops the evening before, and when she came back out, her 911 gave her a key-not-detected warning at the door. Push-to-start was dead. The fob looked fine, battery indicator on the dash said nothing useful, and she had no spare.

She told me another locksmith had programmed a replacement fob for her several months earlier. It worked. Then, gradually, it got worse. Short range first, then intermittent starts, and now this.

I got there with the car sitting in the lot, verified the fob battery was good, then pulled the diagnostic connector. The vehicle security system showed the fob was enrolled but the signal handshake was failing during the authentication cycle. What that usually means on this generation is that the key was programmed with a mismatch somewhere in the enrollment data, the kind of thing that passes on the first few cycles and then starts dropping out as the system does its full verification routine.

I programmed a correctly matched replacement fob on site. Clean enrollment, confirmed through three cold start cycles. Then I walked through all five buttons, passive entry on both front handles, and the mechanical blade fit in the door cylinder without resistance.

She asked if the dealer could have caught the original mismatch. Probably, if they had actually diagnosed it instead of just programming whatever fob was on the shelf. That is a separate conversation. What mattered that morning was that she drove away from Del Mar Village without a tow.

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