1998 Buick Park Avenue
Key Replacement - Save vs Dealer in Ventura County

1998 Buick Park Avenue Transponder Key Replacement - Fast, Affordable & Professional

I got a call from a guy over on Meigs Road, right in The Mesa, on a Saturday morning. He had a 1998 Park Avenue that cranked fine but died immediately every time. He'd already replaced the fuel filter and was halfway convinced it was a fuel pump. Wasn't.

I pulled up and watched him try it once. Cranked strong, fired for about a second, then quit. The security light on the dash stayed on. Classic immobilizer behavior on these late-90s GM cars.

The issue turned out to be a worn key. The chip inside the head was still present, but the key had been on a heavy ring for probably fifteen years and the plastic head was cracked just enough that the chip sat slightly off-axis in the ignition. Sometimes the collar ring read it. Sometimes it didn't. That morning, it wasn't reading at all.

I decoded the existing key, cut a fresh replacement blade matched to his locks, and transferred everything to a new key head with the correct chip properly seated. Programmed it through the OBD port, waited through the security timer, then ran three clean start cycles before I called it done.

He'd been ready to have the car towed to a shop and diagnosed as a fuel delivery problem. I was packed up and gone in under an hour. The tow alone would have cost him time he didn't want to spend on a Saturday.

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