FCC ID M3N5WY7777A
Fits Cadillac, Chevrolet (2005–2015)
M3N5WY7777A is the FCC ID printed on the label under the fob’s battery cover — on this code we verify fit for Cadillac, Chevrolet (2005–2015). 6 aftermarket replacements are published, 2 in stock.
- Makes2Cadillac, Chevrolet
- Models8
- Model years2005–2015
- Frequency315MHz
- In stock2 / 66 SKUs
Vehicles verified for M3N5WY7777A
Cadillac
8 models- CTS
- CTS Coupe
- CTS Wagon
- Corvette
- DTS
- SRX
- STS
- XLR
Chevrolet
6 models- CTS
- CTS Coupe
- Corvette
- SRX
- STS
- XLR
Model years 2005–2015.
Which part fits which model
Each listing for this code, with the models and years it is verified for.
- 2008-2015 Cadillac CTS DTS STS / 4-Button Smart Key / PN: 25946298 / M3N5WY7777ACTS, DTS, STS2008–20154-button Backorder
- 2008-2015 Cadillac CTS STS / 5-Button Smart Key / FCC ID: M3N5WY7777A / PN: 25943676 (Aftermarket)CTS, STS2008–20155-button In stock
- 2008-2014 Cadillac Chevrolet / Emergency Key Blade / B106 / PN: 25995382CTS, CTS Coupe, STS, XLR, Corvette, SRX2008–2014 In stock
- 2010-2014 Cadillac CTS Wagon / 4-Button Smart Key / PN: 20940386 / M3N5WY7777ACTS Wagon2010–20144-button Out of stock
- 2005-2013 Chevrolet Corvette / 4-Button Smart Key / M3N5WY7777ACorvette2005–20134-button Out of stock
- 2008-2011 Cadillac / 4-Button Smart Key / M3N5WY7777ACTS, DTS, STS2008–20114-button Backorder
Cross-reference data for M3N5WY7777A
Cross-references (original part numbers)
14The original part numbers our aftermarket M3N5WY7777A replacements match against. Tap a number to copy it.
Electronics
- Frequency
- 315 MHz
- Transponder chip
- PCF79** / HITAG 2 / 46 CHIPPHILIPS 46PHILIPS ID 46 GM
- Buttons
- 4 / 5
- Key types
- Emergency / Insert KeySmart Key
- IC ID (Canada)
Four checks before you program
- 1
FCC ID on the label
The code on the customer's key must read exactly the same.
This codeM3N5WY7777A - 2
Frequency
A remote on the wrong frequency will never talk to the car, even if it looks identical.
This code315 MHz - 3
Buttons & layout
Match the button count and the button layout to the original key.
This code4 / 5-button versions - 4
Transponder chip
For push-to-start and keyed ignitions, the chip has to match the immobiliser.
This codePCF79** / HITAG 2 / 46 CHIP · PHILIPS 46 +1
Aftermarket replacements for M3N5WY7777A
2008-2015 Cadillac CTS DTS STS / 4-Button Smart Key / PN: 25946298 / M3N5WY7777A
2008-2015 Cadillac CTS STS / 5-Button Smart Key / FCC ID: M3N5WY7777A / PN: 25943676 (Aftermarket)
2008-2014 Cadillac Chevrolet / Emergency Key Blade / B106 / PN: 25995382
2010-2014 Cadillac CTS Wagon / 4-Button Smart Key / PN: 20940386 / M3N5WY7777A
2005-2013 Chevrolet Corvette / 4-Button Smart Key / M3N5WY7777A
Quick answers — FCC ID M3N5WY7777A
What vehicles use FCC ID M3N5WY7777A?
FCC ID M3N5WY7777A is verified in our catalog for Cadillac (CTS, CTS Coupe, CTS Wagon, Corvette, DTS, SRX, STS, XLR); Chevrolet (CTS, CTS Coupe, Corvette, SRX, STS, XLR), model years 2005–2015.
What chip and frequency does M3N5WY7777A use?
M3N5WY7777A keys use the PCF79** / HITAG 2 / 46 CHIP, PHILIPS 46, PHILIPS ID 46 GM transponder chips and operate at 315 MHz.
Is there a replacement for M3N5WY7777A?
Yes — Car Key Source stocks 6 aftermarket emergency / insert key / smart key replacements for FCC ID M3N5WY7777A, sold wholesale to the trade with US & Canada same-day dispatch.
What original part numbers cross-reference to M3N5WY7777A?
FCC ID M3N5WY7777A cross-references to original part numbers (DRIVER, 15864385, 15864386, 20940386, 25840554, 25854937, 25854938, 25943676, 25943677, 25943691, 25946298, 25946299, 25995382, MEMORY) — our replacements are matched against these originals.
More Cadillac FCC IDs we stock
Browse all FCC IDs
Need help confirming fit for M3N5WY7777A?
Leave your email and phone — we’ll verify the cross-reference against the vehicle on your bench and reply with the exact SKU. No spam, ever.
So we can call you about fitment or your order.