2020 Fiat 500x
Five-Star Rated Key Service in Ventura County
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2020 Fiat 500x
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All Fiat 500x Keys Lost? Compare Options
Lost all your keys? Compare your options
2020 Fiat 500x Smart key Replacement - Fast, Affordable & Professional
When a 2020 Fiat 500x 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 body control module rejects it after a drive cycle and you're stranded again. Fiat is especially sensitive to this because the Delphi and Marelli BCMs require exact chip matching.
A school bus driver at the grocery outlet lot in Ojai had a key made by another locksmith for his 500x that stopped working after about a week. It would start the car in the morning, but by evening the immobilizer would intermittently kill the engine. He thought the car had an electrical issue, but it didn't. The key was the problem.
The other locksmith had used a generic ID46 clone instead of the specific chip variant his Fiat's BCM requires. Close chips can fool the initial programming but fail after deeper verification over multiple start cycles. I used my VVDI2 to read the bad key's chip, confirmed it was the wrong variant, and programmed a new key with the correct transponder matched to FCC ID M3N-40821302. His flip key also had a weak CR2032 battery making the remote intermittent, so I swapped that too.
The replacement has been working for months and cost him 265. Dealer would have charged 450. The difference between a key that works and a key that works for a week is the chip inside it.
Trust the Pros for Your Fiat 500x Key
BSIS licensed, NASTF certified, Google Guaranteed. Trusted by 1,000+ customers in the Ojai Post Office Tower area of Ojai.
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Why Fiat Customers Trust Us
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“I needed a second key made for my 2012 Nissan Altima. They arrived quickly, finished in about 15 minutes, and gave me the best price I could find.”
“My key fob stopped working while I was at Oxnard Harbor and I thought I was going to need a tow. EZ Car Keyz showed up fast, programmed a new fob, checked everything carefully, and made sure the car was fully functional before leaving.”
“Tim is a hero. He programmed a master proximity key for a newer Volkswagen that multiple locksmiths refused to touch. He spent hours until late at night making sure every function worked perfectly. The skill level here is incredible.”
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