2024 Ram 3500 Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

The 2024 Ram 3500 does not support DIY on-board key fob programming. Programming requires specialized diagnostic equipment connected to the vehicle's OBD-II port, typically found at a Ram dealership or a qualified automotive locksmith.

This is due to advanced security systems, including an immobilizer, that prevent unauthorized key programming. Attempting to program a key without the proper tools can result in the vehicle not starting and potentially requiring more extensive and costly repairs.

Battery replacement

1. Locate the small release button or tab on the side of the key fob. Press it to release the emergency key blade. Pull the key blade out.
2. With the key blade removed, you'll see a slot on the side of the fob. Use a small flathead screwdriver or a coin to carefully pry the two halves of the fob apart, starting from this slot.
3. Once opened, you will see the circuit board and the CR2450 coin cell battery.
4. Carefully pry out the old battery. Note its orientation (positive side up or down) before removing it.
5. Insert the new CR2450 battery with the correct orientation.
6. Align the two halves of the key fob and press them together firmly until they click securely into place.
7. Reinsert the emergency key blade.

Where to buy a replacement fob

• Ram Dealership:

  • Pros: Guaranteed genuine OEM part, professional programming, covers warranty concerns.
  • Cons: Most expensive option. Ballpark cost can range from $300-$500 or more for the fob and programming.

• Automotive Locksmith:

  • Pros: Often more affordable than a dealership, can come to your location (mobile service), able to program OEM and quality aftermarket fobs. Generally, costs $200-$400 for a new fob and programming.
  • Cons: Ensure they have the necessary equipment for your specific year/make/model.

• Online Retailers (e.g., Amazon, eBay):

  • Pros: Cheapest option for the fob itself. You can find OEM or aftermarket fobs for $50-$150.
  • Cons: You still need to pay for programming. Risk of buying incompatible or low-quality fobs. Always verify the FCC ID (OHT113001) and part number.

If on-board programming isn't supported

As mentioned, the 2024 Ram 3500 requires a scan tool for key fob programming. This means you will need to factor in the cost of professional programming.

• Transponder: The 2024 Ram 3500 uses an advanced immobilizer system that requires the key fob to have a programmed transponder chip. This chip communicates with the vehicle's engine control unit (ECU) to allow the vehicle to start. If the transponder is not correctly programmed, the vehicle will not start, even if the remote functions work.
• Cost Expectations: Expect to pay for both the key fob itself and a separate programming charge. Dealerships often combine these, while locksmiths may quote them separately. Total costs typically range from $200 to $500, depending on the source of the fob and the programming service.

Find a mobile locksmith or shop on Repairius.