---
product_id: 747266881
title: "Keyecu Replacement Smart Remote Key Fob 5 Button for Cadillac STS CTS 2008-2013"
brand: "keyecu"
price: "R$742"
currency: BRL
in_stock: true
reviews_count: 5
category: "Keyecu"
url: https://www.desertcart.com.br/products/747266881-keyecu-replacement-smart-remote-key-fob-5-button-for-cadillac
store_origin: BR
region: Brazil
---

# CR2 battery included for instant power 5-button smart remote with full control Compatible with Cadillac STS/CTS 2008-2013 Keyecu Replacement Smart Remote Key Fob 5 Button for Cadillac STS CTS 2008-2013

**Brand:** keyecu
**Price:** R$742
**Availability:** ✅ In Stock

## Summary

> 🔑 Unlock Cadillac Confidence with Every Click!

## Quick Answers

- **What is this?** Keyecu Replacement Smart Remote Key Fob 5 Button for Cadillac STS CTS 2008-2013 by keyecu
- **How much does it cost?** R$742 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/747266881-keyecu-replacement-smart-remote-key-fob-5-button-for-cadillac)

## Best For

- keyecu enthusiasts

## Why This Product

- Trusted keyecu brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Ready:** Includes CR2 battery for immediate use; just program with your dealer or locksmith.
- • **Precision Key Blade Match:** Ensure exact key insert blade style for flawless fit and function—no compromises.
- • **Lightweight & Durable Design:** Compact 30g gold exterior blends style with resilience for everyday luxury.
- • **Seamless Cadillac Integration:** Perfectly engineered for STS & CTS models (2008-2013) to keep you connected.
- • **Comprehensive 5-Button Control:** Lock, unlock, panic, trunk, and remote start at your fingertips—effortless convenience.

## Overview

The Keyecu Replacement Smart Remote Key Fob is a 5-button remote designed specifically for Cadillac STS and CTS models from 2008 to 2013. It replaces FCC ID M3N5WY777A and OE #25943676, offering lock, unlock, panic, trunk, and remote start functions. The package includes a CR2 battery for immediate power, but programming and key cutting must be done by a dealer or certified locksmith. Its lightweight gold exterior ensures a stylish yet durable accessory for your vehicle.

## Description

This part is compatible with the following vehicles that use this style remote. For Cadillac STS/CTS 2008-2013 IMPORTANT NOTICE: Programming procedures are not supported on this model. Program to dealer or locksmith to cut your keys. Please ensure the key insert blade style matches exactly.

Review: Excelente producto Me encanto la llave funciona de maravilla La recomiendo ampliamente Mi coche es un cadíllac CTS 2008 Un punto a destacar es que te dicen como programarla y asi evitas altos costos
Review: When in hand I can open the doors and trunk. I can also lock and unlock the doors. Unfortunately using the key fob I cannot remotely open the trunk nor start the car with the key fob. Sadly the blank key in the key fob is the wrong size and cannot be cut to be able to open the driver side door. I hope Keyecu will be able to remedy these shortcomings. Will let you know. Update: Keyecu sent me a replacement keyfob. Blank key is the right size and all remotes are working. Now five stars ... many thanks.

## Features

- Replaces FCC ID: M3N5WY777A; OE #: 25943676, 25943677
- 5 Buttons: Lock, Unlock, Panic, Trunk, Remote Start,
- Please make sure the style of the key insert blade matches exactly before purchase
- CTS 2008-2013 Fits STS 2008-2013
- Remote chip and transponder chip need to be programmed, key blank must be cut by local dealer or used with certified automatic locksmith

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model Name | Smart Key - M3N5WY777A / 25943676 |
| Manufacturer | Keyecu |
| Package Dimensions | 11.05 x 7.49 x 1.4 cm; 30 g |
| Batteries | 1 CR2 batteries required. (included) |
| Item model number | AUTO_KEY_SHELL |
| Is Discontinued By Manufacturer | No |
| Exterior | Gold |
| OEM Part Number | 25943676 |
| Item Weight | 30 g |

## Product Details

- **Brand:** Keyecu
- **Color:** Black
- **Item Weight:** 0.04 Kilograms
- **Material:** Plastic
- **Vehicle Service Type:** Car

## Images

![Keyecu Replacement Smart Remote Key Fob 5 Button for Cadillac STS CTS 2008-2013 - Image 1](https://m.media-amazon.com/images/I/71rqGmQjpdL.jpg)
![Keyecu Replacement Smart Remote Key Fob 5 Button for Cadillac STS CTS 2008-2013 - Image 2](https://m.media-amazon.com/images/I/71ULQl2a-TL.jpg)
![Keyecu Replacement Smart Remote Key Fob 5 Button for Cadillac STS CTS 2008-2013 - Image 3](https://m.media-amazon.com/images/I/71hdXwHiKyL.jpg)
![Keyecu Replacement Smart Remote Key Fob 5 Button for Cadillac STS CTS 2008-2013 - Image 4](https://m.media-amazon.com/images/I/71Cev9e2loL.jpg)
![Keyecu Replacement Smart Remote Key Fob 5 Button for Cadillac STS CTS 2008-2013 - Image 5](https://m.media-amazon.com/images/I/711jsGoH3mL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on September 28, 2025*

Excelente producto Me encanto la llave funciona de maravilla La recomiendo ampliamente Mi coche es un cadíllac CTS 2008 Un punto a destacar es que te dicen como programarla y asi evitas altos costos

### ⭐⭐⭐⭐⭐ Review
*by D***N on April 21, 2024*

When in hand I can open the doors and trunk. I can also lock and unlock the doors. Unfortunately using the key fob I cannot remotely open the trunk nor start the car with the key fob. Sadly the blank key in the key fob is the wrong size and cannot be cut to be able to open the driver side door. I hope Keyecu will be able to remedy these shortcomings. Will let you know. Update: Keyecu sent me a replacement keyfob. Blank key is the right size and all remotes are working. Now five stars ... many thanks.

### ⭐⭐⭐⭐⭐ Review
*by J***. on December 22, 2025*

I have finally found a fob that works! Some of the ones I have purchased either will not program or they do not tell you that it needs to be programmed by a dealer. This one was programmed already and all the functions work properly .I have been very pleased with my purchase and would recommend it.

## Frequently Bought Together

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-12*