OEM Smart Key Transmitter for Toyota 🔑

This factory-grade keyless transmitter keeps your Toyota secure and convenient to use. It communicates with the vehicle’s ECU and immobilizer so you can lock/unlock doors and start the engine with a push, no metal key needed. Built to Toyota specs, it ensures stable range, quick response, and long battery life.

Why you need it 🛡️

It enables remote locking, panic function, and authorized engine start. Without a healthy transmitter, the immobilizer will refuse to start the engine, protecting against theft but also stopping you if the fob fails.

How it works 🚙

The fob wakes up via low-frequency proximity signals near the vehicle, then answers with a rolling-code UHF signal. An integrated transponder performs a cryptographic handshake with the immobilizer. If codes match, the ECU permits ignition and Start/Stop operation.

If it’s faulty ⚠️

Symptoms include “Key Not Detected,” intermittent locking, reduced range, or no start. You may experience immobilizer lockout, rapid battery drain, or random alarm triggers.

Fitment and setup 🛠️

Use a fresh CR2032 cell, avoid moisture/magnetic fields, and pair with the vehicle using professional tools (e.g., Techstream) for proper registration and smart access calibration.

Compatibility

• Land Cruiser