2015 Cadillac ATS
Key Replacement - Save vs Dealer in Ventura County

2015 Cadillac ATS Smart Key Replacement - Fast, Affordable & Professional

I was working a job near the Presidio neighborhood in Santa Barbara when a follow-up call came in. Guy had a 2015 ATS, push-button start, and no working keys at all. His one fob had stopped being recognized by the car entirely. He had tried a new battery. He had tried holding it to the start button. Nothing. The car just sat there like it had never seen a key in its life.

He had already called the dealer. They told him it was an all-keys-lost situation and that he would need a tow plus a service appointment, probably the next day. The number they floated made him pause long enough to look for other options.

I got to him about forty minutes later. All-keys-lost on a push-button ATS is one of those jobs that sounds more dramatic than it is if you have the right equipment and current software. The vehicle security system needs to have its stored key data cleared and then accept newly registered fobs. You can't just hand it a new fob and expect it to wake up. I read the module data first as a backup, then ran the key-learning sequence through the OBD port, registered his new fob, and verified every function before packing up.

The fob locked the doors, unlocked the doors, and the start button fired the engine without hesitation. He had been standing outside his car for a few hours at that point. When it started, he just kind of nodded slowly, the way people do when they've been bracing for a worse outcome.

The dealer route would have meant a tow, an overnight wait, and a bill that was a significant chunk more than what he paid me. He saved a good chunk, and he didn't lose a day.

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