1999 Ford Mustang
Key Replacement - Save vs Dealer in San Diego
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With over 1,000 verified Google reviews and every major industry certification, EZ Car Keyz is the locksmith trusted by families, businesses, and fleet managers throughout the area.
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1999 Ford Mustang
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1999 Ford Mustang Transponder Key Replacement - Fast, Affordable & Professional
When a 1999 Ford Mustang key is done wrong, it doesn't just "kind of work." It fails. The engine might crank but not start. The remote might lock but not unlock. Or the key programs initially but the immobilizer rejects it after a drive cycle and you're stranded again.
A customer at the laundromat in San Diego had a key made by another locksmith for her Mustang that stopped working after about eight days. It would start the car in the morning, then by evening the push-to-start would flash "key not detected." She thought the car had an electrical problem, but it didn't. The key had the wrong chip.
The other locksmith had used a generic transponder chip that was close but not exact. On Ford's PATS system, a close-but-wrong chip can pass the initial programming but fail after the car runs its deeper security verification. I used my VVDI2 to read what chip was actually in her bad key, confirmed it was incorrect, and programmed a new key with the right chip matched to her car's FCC ID . Her fob also had a weak CR2032 battery contributing to the intermittent issues, so I swapped that too.
The replacement I made has been working for months and cost her $108. Dealer would have charged $269. The difference between a key that works and a key that works for a week is the chip inside it.
Save vs the Dealer on Your Ford Mustang Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
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“I lost my key and called EZ Car Keyz. Marco was great. He arrived quickly, explained everything clearly, and kept me informed throughout the entire process. The service was fast, professional, and fairly priced.”
“He arrived within 30 minutes and had everything finished in another 30 minutes for two cars. Everything was programmed and tested perfectly. Cheapest price in town and very honest service.”
“I called EZ Car Keyz to unlock my truck, make a key, and sync a new key fob. They were at my location within minutes and handled everything fast and friendly. Prices were great and the service was excellent.”
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