2004 Cadillac Seville
Key Replacement - Save vs Dealer in Ventura County
No Delays | No Runaround

Need your key replaced today? We offer same-day mobile service with an average arrival time of 20-30 minutes. Most keys are cut and programmed in under 45 minutes.

Back on the road fast, for less
2004 Cadillac Seville
Key Options
Dealer-grade key for a fair, honest price
Cadillac Key: Same-Day vs Dealer Timeline
Speed matters - see the numbers
2004 Cadillac Seville Transponder Key Replacement - Fast, Affordable & Professional
Got a call from a guy over in the Alta Mesa area of Santa Barbara. His 2004 Seville wouldn't crank. Key turned, dash lit up, starter did nothing. He said the THEFT SYSTEM message was sitting right there on the DIC and the security light was solid, not flashing.
He'd already tried the 10-minute relearn twice on his own. Sat in the car with the key at ON, waited for the light to cycle off, turned it off, repeated. Nothing changed. He was ready to have it towed.
I got to him in about 30 minutes. Pulled my Lishi GM Z keyway tool, decoded the sidebar, and checked the existing key. The transponder was reading fine on my tester, which told me the key itself was good. I connected through the OBD port and pulled codes. B2960, which is a loss of security data message from the body control module. The PK3 antenna ring around the ignition cylinder had a hairline crack and was reading intermittently.
Swapped the antenna ring, cleared the B2960, ran the relearn with his original key, and the Northstar fired right up. Cut and programmed a spare while I was there so he'd have a backup.
He thought he needed a whole new ignition and a tow to the dealer. It was a plastic ring and some seat time with a scan tool, done in his driveway for a fraction of what the dealership quoted him over the phone.
Save vs the Dealer on Your Cadillac Seville Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
Cadillac Seville Rapid Response, Done Right
Rapid response in the field
Fast Keys, Happy Customers
Quick service that speaks for itself
“Fast, affordable, and a great price. Marco did an amazing job and made a key for our Nissan Kicks quickly and professionally. Everything worked perfectly.”
“I got locked out of my vehicle and also lost my key. Marco came out, made a new key for my Toyota, and got me back on the road. He was professional, friendly, and clearly knows what he is doing.”
“My ignition would not turn in La Jolla and I thought I needed a tow. EZ Car Keyz repaired the ignition on the spot and also made a spare key for safety. The technician worked carefully and confidently.”
Cadillac Seville Key Service Areas
No delays, any service area

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