2008 Hyundai Sonata
Key Replacement - Save vs Dealer in Ventura County

2008 Hyundai Sonata Transponder Key Replacement - Fast, Affordable & Professional

A guy in Downtown Oxnard called me about his 2008 Sonata sitting in a surface lot off Meta Street. He'd had the key for years, same key, and one morning it just wouldn't start the car. Engine would crank, then cut out immediately. He'd tried it a dozen times before he called me.

I got there and looked at the key first. The plastic head had a hairline crack running right through it, the kind that happens slowly and you don't notice until something finally shifts inside. The chip wasn't making consistent contact with the reader coil in the column. That's all it was.

I cut a new key blade to match his lock, programmed a fresh transponder chip to the vehicle on site using the OBD port, and had him test it himself before I packed up. It fired on the first turn and held idle without a hiccup.

He'd spent two days thinking it was a fuel or electrical issue. Mechanics had already looked at it. Nobody thought to look at the key because the key looked normal. That's the thing about a cracked head on a transponder key. It's invisible until it isn't.

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