2025 Nissan Ariya
Key Replacement - Save vs Dealer in Ventura County

2025 Nissan Ariya Smart Key Replacement - Fast, Affordable & Professional

I was parked off the main stretch near Conejo Oaks on a Sunday morning when the call came in. A man on a temple committee had been dealing with a bad key situation for days. A previous locksmith had already taken his money, handed him a programmed fob, and left. The car would crank, catch for a second, and then die. Every time.

The other tech had told him it was a module problem and that he needed the dealer. He had already been waiting two days and was starting to believe it.

I pulled up, popped the OBD port, and ran a registration status check before I touched anything else. What I found was exactly what I expected: a partial write. The fob data had been entered but the immobilizer had never completed its security handshake and timed verification cycle. The key ID was sitting in a kind of limbo, accepted but not committed. The car was doing exactly what it was supposed to do when that happens: it let the engine fire, then killed it.

I cleared the incomplete data, ran the full registration sequence with the correct countdown, and waited for the confirmation. Then I tested it the right way, not just one start, but multiple cold cycles, lock and unlock on all three buttons, and a clean walk around the vehicle to verify the door handles were responding to the fob.

He watched the whole thing on my screen. When he saw the registration confirmation come up solid, he got quiet for a second. Then he said he wished he had found me first.

I couldn't get his money back from the first guy. But I could make sure he left with a key that actually worked.

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