How do you program a blank key fob?

To program a blank key fob, you'll typically need access to a programming tool or the specific programming instructions for your vehicle's make and model. The process may vary depending on the brand and year of the car. Here are the general steps involved:

1. Identify the programming method: Determine the programming method for your key fob. Consult your vehicle's owner's manual or search online for specific instructions. Different cars have different methods, such as using onboard programming buttons, a specialized programming tool, or going to a dealership for programming.

2. Obtain the necessary tools: If your car requires a programming tool, you'll need to either purchase one yourself or visit a professional locksmith or dealership, as these tools can be quite expensive. Ensure you have the correct tool or equipment before proceeding.

3. Enter programming mode: For some vehicles, you may need to enter a specific programming mode. This can involve a sequence of pressing buttons in a certain order or performing other actions related to the vehicle's electronic systems. Follow the instructions provided by the manufacturer to enable programming mode.

4. Put the key fob into programming mode: With the vehicle in programming mode, you'll typically need to press a button or perform a specific action on the key fob itself to enable programming mode on the fob itself. This step may require multiple attempts or specific timing, so make sure to follow the instructions carefully.

5. Program the key fob: Once both the vehicle and key fob are in programming mode, follow the instructions provided by the manufacturer to program the key fob. This usually involves pressing buttons on the key fob or the programming tool to send the necessary information to the vehicle's onboard systems.

6. Test the programmed key fob: After programming is complete, test the key fob to ensure it is functioning correctly. Check if it can lock and unlock the doors, open the trunk, and activate any other functions specific to your vehicle.

Note: The programming process outlined above is a general guide. It is essential to consult your car's owner's manual or contact the vehicle manufacturer for specific instructions related to your make and model.