Cadillac CT4 Key Replacement & Programming in Jacksonville
Spare keys from $385. All-keys-lost from $595. Mobile, on-site, same-day service across the First Coast.
Spare or Additional CT4 Key
Dealer Price
$615 – $775
Our Price
from$385
When you still have a working key.
Lost All CT4 Keys?
Dealer Price
$950 – $1,340
Our Price
from$595
When every key is lost or stolen.
Final price depends on your specific CT4 year and trim — call us for an exact quote.
Key Specifications — Cadillac CT4
| Parameter | Value |
|---|---|
| Transponder Chip | Megamos AES / UWB |
| FCC ID | YG0G20TB1 |
| Key Blade | HU100 |
| Frequency | 315 MHz |
| Immobilizer | GM UWB |
| Proximity / Smart Key | Yes (2008+) |
About Your 2026 Cadillac CT4
Cadillac is a USA brand owned by General Motors. Their key system uses GM PK3+ / Smart Key with UWB with Transponder, Smart Key with Digital Key. Cadillac combines GM's PK3+ immobilizer with premium smart key features. Newer models include Ultra-Wideband (UWB) technology for enhanced security.
The 2026 Cadillac CT4 is a sedan. We service this exact sedan regularly across the Jacksonville area — programming is reliable, the key blank is in stock on the truck, and most spare-key jobs complete in 35–60 minutes on-site without a tow.
Your 2026 Cadillac CT4 is a modern-era vehicle and uses the latest revision of Cadillac's key security platform. Programming requires advanced equipment but is fully aftermarket-supported on-site — no dealer trip needed in most cases.
Immobilizer (GM UWB): GM's PK3+ has been refined since 2007 and is one of the easier mainstream platforms to program. Aftermarket coverage spans every Chevy, GMC, Buick, and Cadillac of the era.
In Jacksonville
Every Cadillac CT4 job we book in Jacksonville comes with the price quoted on the phone — no bait-and-switch and no after-hours surcharge unless explicitly disclosed before dispatch.
Ready to book your Cadillac CT4 key?