Will this m3n5wy7777a fob work with my 2008 Cadillac CTS smart key?
2008-2014 Cadillac CTS STS / 5-Button Smart Key / PN: 25943677 / M3N5WY7777A / (AFTERMARKET)
Status:
Open Jun 30, 2026 - 11:35 AM
1answer
Staff Answer
Jun 30, 2026 - 11:35 AM
Yes, SKU RSK-GM-77A-5 is listed for the 2008–2014 Cadillac CTS/STS and uses FCC ID M3N5WY7777A, so it should work for a 2008 Cadillac CTS smart key if the original key matches the same FCC ID, 315 MHz frequency, and 5-button layout. It includes a Philips 46 chip and uses emergency blade EKB-CAD-002.
View More Product Details
View all 2008-2014 Cadillac CTS STS / 5-Button Smart Key / PN: 25943677 / M3N5WY7777A / (AFTERMARKET) Questions & Answers