2015 Ram 2500 Key Fob Programming

Quick reference

Step-by-step on-board programming

Unfortunately, the 2015 Ram 2500 does not support DIY on-board programming for key fobs. This means you cannot program a new key fob yourself using a series of ignition cycles or button presses. The vehicle's security system requires specialized diagnostic equipment to link a new fob to your truck. This is a common practice for modern vehicles to enhance security and prevent unauthorized key duplication.

Battery replacement

1. Locate the small indentation or slot on the side or bottom of the key fob. This is typically where the two halves of the fob meet.
2. Insert a thin, flat object (like a small screwdriver or coin) into the slot and gently twist to pry open the two halves of the fob. Be careful not to damage the internal components.
3. Carefully remove the old CR2032 battery. Note the orientation of the old battery (usually positive side facing up) to ensure you install the new one correctly.
4. Insert the new CR2032 battery with the positive (+) side facing the same direction as the old one.
5. Align the two halves of the key fob and press them firmly together until they snap shut.
6. Test the new battery by trying to lock/unlock your truck.

Where to buy a replacement fob

• Dealer: Offers genuine OEM parts, ensuring perfect compatibility. However, they are typically the most expensive option, often charging a premium for both the fob and programming services. Expect to pay anywhere from $200-$400+ for the fob and programming.
• Locksmith: A mobile locksmith or a local shop can often provide and program aftermarket or even OEM fobs at a significantly lower cost than a dealership. They have the necessary diagnostic tools and expertise. Prices typically range from $150-$300, including the fob and programming.
• Amazon/Online Retailers: You can find a wide variety of aftermarket and sometimes even OEM-compatible fobs online. Prices can be very attractive, often under $50 for the fob itself. However, be cautious about compatibility—always double-check the FCC ID and part numbers. You will still need to pay for programming services from a locksmith or dealer.

If on-board programming isn't supported

Since on-board programming is not an option for your 2015 Ram 2500, you will need to rely on a professional for key fob programming. Here's what to expect:

• Cost Expectations: As mentioned above, a locksmith will generally be more affordable than a dealership. Always get a quote before committing to any service.
• Immobilizer Transponder: The key fob for your Ram 2500 contains an immobilizer transponder chip, which is an integral part of your vehicle's security system. This chip must be correctly programmed to your truck's computer for the vehicle to start. Simply cutting a new key blade won't be enough; the transponder needs to be recognized by the vehicle. When you get a new key fob, both the remote functions (lock/unlock) and the immobilizer transponder need to be programmed simultaneously by a professional with the right equipment.

Find a mobile locksmith or shop on Repairius.