2015 Jaguar XJ
Key Replacement - Save vs Dealer in Ventura County
Licensed & Insured | Mobile Key Experts
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2015 Jaguar XJ
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2015 Jaguar XJ Smart Key Replacement - Fast, Affordable & Professional
Got a call from a veterinary dermatologist near El Presidio State Historic Park in Santa Barbara. She had a 2015 Jaguar XJ, and another locksmith had cut and programmed a smart key two days prior. Worked at first. Then the push-to-start stopped detecting it entirely. Dash just read "Key Not Detected" every time. She thought the KVM had failed.
It hadn't.
I pulled up to her XJ, connected my VVDI2 to the OBD port, and read the KVM data. The previous tech had written a chip that was close to ID49 spec but not correctly matched to her specific KVM generation. On Jaguars, the immobilizer handshake between the fob and the C2D51458 module is strict. A near-match might get you one or two successful start cycles, then the KVM rejects it after a drive cycle and you are locked out.
I programmed a properly paired ID49 Hitag Pro chip into a new KOBJTF10A shell, same 5-button layout, HK83-15K601-AA. Then the tedious part: three cold starts, all five buttons, passive entry on every door handle, trunk release, and a walk-away lock test. She stood there watching the dash like she was waiting for it to quit again.
It didn't. The difference between a key that works and one that works for two days is chip accuracy at the KVM level. Her cost was a fraction of what the dealer wanted, and nobody towed anything anywhere.
Save vs the Dealer on Your Jaguar XJ Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
Jaguar XJ Rapid Response, Done Right
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“They responded instantly, showed up within an hour, and arrived exactly when they said they would. Made a copy and programmed a fob for my 2014 car with a worn ignition in about 15 minutes. The new key works perfectly and feels like a dealer key.”
“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.”
“Super fast service. About 20 minutes from the call he was already there. He had an authentic replacement on hand and made a spare key for my 2017 Nissan Rogue in about 15 minutes. Great prices, friendly, and very professional.”
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