2012 Cadillac CTS
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2012 Cadillac CTS
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2012 Cadillac CTS Smart key Replacement - Fast, Affordable & Professional
When a 2012 Cadillac CTS key is done wrong, the car fights it. The engine cranks but cuts fuel after two seconds. The push-to-start works for a few days then randomly shows "key not detected." Or the fob locks the doors but won't trigger the ignition. GM's body control module runs a deeper verification over multiple drive cycles, and a close-but-wrong chip will pass the first test but fail the second.
A customer at the tailor shop in Thousand Oaks had a key from another locksmith that started failing after about a week. Her CTS would start fine in the morning but by afternoon the push-to-start would intermittently refuse. She thought the car had an electrical problem, but it didn't. The key was the problem.
The other locksmith had programmed the wrong chip type. I used my VVDI2 to read the bad key's chip and confirmed the mismatch, then programmed a new fob with the correct chip matched to her FCC ID M3N5WY7777A. I also replaced the weak CR2032 battery that was adding to the detection issues.
The replacement has been working for months and cost her 332. Dealer would have charged 601. The difference between a key that works and a key that works for a week is the chip generation inside it.
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“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.”
“I needed a car key replacement in Hillcrest and EZ Car Keyz helped me immediately. The technician programmed a new smart key right next to my car and tested every function before leaving. Fast, friendly, and very professional.”
“About 15 minutes after calling, he was already at my home. I had lost my original Ford key and he made and programmed a new one on the spot. Very fast, very professional.”
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