FCC ID M3N5WY7777A
M3N5WY7777A is the FCC ID printed on the label under the fob's battery cover — on this code we verify fit for Cadillac (2008–2015). 1 aftermarket replacement is published, all in stock. Everything below — vehicles, OEM part-number cross-references, chip and frequency — comes straight from the live catalog. Wholesale for the trade; pricing unlocks with an approved account.
Cross-reference data for M3N5WY7777A
Compatible vehicles
- Cadillac — CTS, STS
Model years 2008–2015.
Cross-references (OEM part numbers)
The original part numbers our aftermarket M3N5WY7777A replacement matches against.
- 25943676
- 25943677
Electronics
- Transponder chip
- PCF79** / HITAG 2 / 46 CHIP
- Frequency
- 315 MHz
- Key types
- Smart Key
Aftermarket replacements for M3N5WY7777A in stock
Smart Key
2008-2015 Cadillac CTS STS / 5-Button Smart Key / FCC ID: M3N5WY7777A / PN: 25943676 (Aftermarket)
FCC M3N5WY7777A315MHz5-btn2008–2015PCF79** / HITAG 2 / 46 CHIP
More Cadillac FCC IDs we stock
Need help confirming fit for M3N5WY7777A?
Leave your name and email — we'll verify the cross-reference against the vehicle on your bench and reply with the exact SKU. No spam, ever.

