How to Program a Nissan Altima Key Fob: A Step-by-Step Guide

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Are you in need of a new key fob for your Nissan Altima or Infinity vehicle? Or perhaps you have a regular key and need a replacement? In this article, we will guide you through the process of programming a new key fob or key for your Nissan and Infinity vehicles using a simple key programming kit from With just a few easy steps, you can have a new key fob programmed in as little as 15 minutes.

Ordering the Key Programming Kit

To get started, you will need to order the key programming kit from Once you receive the kit, it will come with a user guide that contains important instructions for the programming process. Before you begin, make sure your vehicle’s battery is in good condition and fully charged. Also, turn off any devices that draw power from the battery, such as headlights, air conditioning, heater, radio, and other lights.

Activation Step

There are two steps to programming your key fob. If your fob came in the box with the programming kit, it will require an activation step. However, if you ordered additional fobs separately, they may not require this step. To activate your fob, you will need to find your vehicle in the lookup table provided in the user guide. For example, if you have a 2015 Nissan Altima with a four-button remote with a trunk, you will need to use code 42. Follow the instructions to initiate the activation process by pressing the top and bottom buttons on the fob simultaneously. If a blue light turns on solid, it indicates that you need to go through the activation process. Enter the code by using the buttons on the fob as instructed. Once the code is entered successfully, the fob will be activated for your specific vehicle.

Programming Procedure

After the activation step, it’s time to proceed with the programming procedure. Turn the key to dial position number seven and make sure the vehicle’s engine is off. Locate the OBD2 port, which is usually near the brake and gas pedals, and plug in the programming kit. Follow the instructions provided in the guide, which will walk you through each step. Some instructions may require you to press and hold buttons for a few seconds, so make sure to read the instructions carefully.

The programming process will involve opening and closing the door, turning on the hazard lights, and holding the start button until the dash lights turn on. The security light on the dashboard will blink, indicating that the key fob is now paired with the vehicle. Repeat the steps if you need to pair another key fob. The maximum number of keys or fobs that can be programmed using this kit is four.

Key Registration and Testing

Once the programming process is complete, turn off the ignition and unplug the programming kit from the OBD2 port. Test the new key fobs by attempting to start the vehicle. If the vehicle recognizes the key fobs and starts successfully, you have completed the programming process.

Troubleshooting and Additional Tips

In rare cases where the key fobs do not work after programming, there are some troubleshooting steps you can take. For example, if your vehicle has push-to-start functionality and the dashboard lights do not illuminate around the push button start, it may be due to a fuse issue. Check if the fuse labeled “Push Button Start” has been removed or burnt out. If so, replace the fuse to restore functionality to the original key fob.

If you encounter any difficulties during the programming process or the key fobs do not work as expected, offers a full money-back guarantee. Simply email [email protected] and they will provide a refund when you return everything with the original packaging.


With the help of the simple key programming kit from, programming a new key fob for your Nissan Altima or Infinity vehicle has never been easier. By following the step-by-step instructions and activating the fob, you can ensure that your new key fobs work seamlessly with your vehicle. Don’t forget to cut the emergency key blade after programming to avoid any inconvenience in the future. Visit for more information and a wide range of key programming kits for various vehicle models.