Cadillac CT5 Key Replacement & Programming in Jacksonville
Spare keys from $360. All-keys-lost from $645. Mobile, on-site, same-day service across the First Coast.
Spare or Additional CT5 Key
Dealer Price
$575 – $910
Our Price
from$360
When you still have a working key.
Lost All CT5 Keys?
Dealer Price
$1,030 – $1,560
Our Price
from$645
When every key is lost or stolen.
Final price depends on your specific CT5 year and trim — call us for an exact quote.
Key Specifications — Cadillac CT5
| 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 CT5
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 CT5 is a sedan. Most CT5 keys of this generation use the Megamos AES / UWB transponder chip, remotes under FCC ID YG0G20TB1, the HU100 key blade — exactly the hardware we cut and program on-site. Cadillac programming is fully aftermarket-supported, so one mobile visit covers key cutting, chip programming, and remote pairing in a single stop.
Your 2026 Cadillac CT5 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
Whether you're in the Westside, Northside, Arlington, San Marco, Avondale, or out toward the Beaches — Jacksonville Beach, Atlantic Beach, Neptune Beach, Ponte Vedra — we cover the whole metro for Cadillac CT5 key service.
Ready to book your Cadillac CT5 key?