2020 Jeep Gladiator Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2020 Jeep Gladiator does not support DIY on-board programming for its key fobs. This means you cannot program a new key fob yourself using a series of key turns or door open/close cycles. The advanced security systems in modern vehicles like the Gladiator require specialized equipment to program new keys.

To program a new key fob for your 2020 Jeep Gladiator, you will need to visit a dealership or a qualified automotive locksmith. They use a diagnostic scan tool that connects to your vehicle's onboard computer and can register new key fobs with the immobilizer system.

Battery replacement

1. Locate the small release button or switch on the side of the key fob. Press or slide it to release the emergency key blade. Pull the key blade out.
2. With the emergency key blade removed, you should see a small slot or indentation within the fob casing. Use a small flat-head screwdriver or a coin to carefully pry open the two halves of the fob.
3. Once the fob is open, you will see the circuit board and the CR2450 coin cell battery. Note the orientation of the battery (which side is facing up).
4. Gently remove the old battery. You may need to carefully pry it out with a small non-metallic tool to avoid damaging the contacts.
5. Insert the new CR2450 battery, ensuring it is oriented correctly with the positive (+) side facing up.
6. Carefully align the two halves of the key fob and press them together until they click securely into place.
7. Reinsert the emergency key blade until it locks.

Where to buy a replacement fob

• Dealer: Your Jeep dealership will provide genuine OEM key fobs that are guaranteed to work with your Gladiator. They will also handle the programming.

  • Pros: Guaranteed compatibility, professional programming.
  • Cons: Most expensive option. Expect to pay anywhere from $250-$400+ for the fob and programming.

• Locksmith: Automotive locksmiths can often provide and program new key fobs for your 2020 Jeep Gladiator at a more competitive price than a dealership. They use the same type of scan tools.

  • Pros: More affordable than the dealer, often convenient mobile service comes to you.
  • Cons: Ensure the locksmith is reputable and experienced with modern vehicle security systems.

• Amazon/Online Retailers: You can find aftermarket key fobs for the 2020 Jeep Gladiator online. These are typically much cheaper than OEM fobs.

  • Pros: Significant cost savings on the fob itself.
  • Cons: Quality can vary, some aftermarket fobs may not be fully compatible or reliable. You'll still need to pay a locksmith or dealer to cut the emergency key blade and program the fob, which can sometimes be more expensive if they didn't supply the part.

If on-board programming isn't supported

As mentioned, the 2020 Jeep Gladiator requires professional programming. This is due to the vehicle's immobilizer system, which is a security feature designed to prevent theft. The key fob contains a transponder chip which communicates with the vehicle's immobilizer. If the correct code isn't received, the vehicle will not start or operate, even if the key physically turns the ignition (if applicable) or allows door entry.

When budgeting for a new key fob, consider the following:

• Cost of the fob: This varies widely based on whether it's OEM or aftermarket.
• Cutting the emergency key blade: The physical key blade within the fob needs to be cut to match your vehicle's locks. This can be done by a locksmith or dealer.
• Programming labor: This is the cost associated with using the specialized scan tool to link the new fob to your vehicle's immobilizer and remote functions.

Expect the total cost (fob + cutting + programming) to range from $180-$450, depending on where you purchase the fob and who performs the services.

Find a mobile locksmith or shop on Repairius.