2018 Nissan Frontier Key Fob Programming Guide

As an ASE-certified electrical technician and automotive locksmith, I frequently get asked about replacement keys and remotes for the Nissan Frontier. The 2018 Nissan Frontier is a robust, no-nonsense truck, and thankfully, its keyless entry system is equally straightforward. However, it is crucial to understand the difference between programming the keyless entry remote (the buttons) and programming the immobilizer transponder (the chip that actually starts the engine).

Here is your comprehensive guide to replacing and programming the key fob for a 2018 Nissan Frontier.

Quick reference

Step-by-step on-board programming

For the 2018 Nissan Frontier, you can program the keyless entry remote (the buttons that lock and unlock the doors) yourself using an on-board procedure.

Important Note: This procedure only programs the remote keyless entry functions. It does not program the transponder chip inside the key. If you have a brand-new key, it must be cut and the transponder must be programmed by a locksmith or dealer before it will start the engine.

If you are just adding a remote or a new remote-head key's buttons, follow these steps:

1. Close and lock all doors using the power lock switch on the driver’s side door panel.
2. Insert and remove the key from the ignition cylinder at least six (6) times within 10 seconds. Your hazard lamps will flash twice if you performed this step at the correct speed.
3. Insert the key into the ignition cylinder and turn it to the ACC (Accessory) position.
4. Press any button on the new remote within 5 seconds. Your hazard lamps will flash twice to indicate the remote has been successfully programmed.
5. If programming additional remotes (including your old ones), unlock and lock the doors using the power lock switch on the driver’s door panel. Then press any button on the next remote. The hazards will flash twice.
6. Turn the ignition to the OFF position, remove the key, and unlock the driver’s side door to exit programming mode.
7. Test all remotes to ensure they lock and unlock the doors.

Battery replacement

If your current remote is losing range or requires multiple presses to work, you likely just need a new battery. The 2018 Frontier fob uses a standard CR2025 3V lithium coin cell battery.

1. Locate the small notch on the bottom edge of the remote (where the keyring attaches).
2. Insert a small flathead screwdriver into the notch and gently pry the two halves of the fob apart.
3. Remove the green circuit board and observe the battery orientation (the "+" side is usually face down against the contacts).
4. Pop out the old battery and insert the new CR2025 battery.
5. Snap the two plastic halves back together firmly and test the buttons.

Where to buy a replacement fob

When purchasing a new key or remote for your Frontier, you have a few options, each with its own pros and cons:

• The Dealership: Buying an OEM key directly from the Nissan dealer guarantees quality and correct fitment. However, this is the most expensive route. Expect to pay between $150 and $250 for the part, plus another $100 to $150 for cutting and programming.
• Automotive Locksmith: A mobile locksmith is usually the best balance of cost and convenience. Locksmiths supply high-quality aftermarket or refurbished OEM keys and will cut and program them right in your driveway. Expect to pay around $120 to $180 total.
• Amazon / Online Retailers: You can find aftermarket remotes online for $15 to $40. While cheap, quality can be hit-or-miss. Remember, you still need to pay a locksmith to cut the physical blade and program the transponder chip, which usually adds $50 to $100 to your total cost. Some locksmiths will not guarantee customer-supplied parts.

If on-board programming isn't supported

As mentioned earlier, while the remote buttons can be programmed via the DIY method, the NATS (Nissan Anti-Theft System) immobilizer transponder chip cannot. The 2018 Frontier typically utilizes a Philips ID46 transponder chip.

If you lose all your keys, or need a spare key to actually start the engine, a diagnostic scan tool must be connected to the truck's OBD2 port. The technician will need to bypass the security gateway, pull the BCM (Body Control Module) PIN code, and program the new transponder chip to the engine computer. This is not a DIY job. You must call a professional.

Find a mobile locksmith or shop on Repairius.