2018 Ram 2500 Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2018 Ram 2500 does not support DIY key fob programming. For security reasons, the vehicle's computer system requires specialized diagnostic equipment to link new key fobs to your truck. This means you'll need to visit a Ram dealership or a qualified automotive locksmith to have your new key fob programmed.

Attempting to program the fob yourself through various on-board procedures found online for other vehicles will not work for your 2018 Ram 2500 and may even cause issues with your vehicle's security system.

Battery replacement

Replacing the battery in your 2018 Ram 2500 key fob is a straightforward process:

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.
2. Remove the emergency key blade from the fob.
3. Pry the two halves of the key fob apart. You can often use a small flat-head screwdriver or a coin in the slot where the key blade was removed.
4. Carefully remove the old CR2450 battery, noting its orientation (positive side up or down).
5. Insert the new CR2450 battery with the correct orientation.
6. Snap the two halves of the key fob back together until they click into place.
7. Reinsert the emergency key blade.

Where to buy a replacement fob

When it comes to purchasing a replacement key fob for your 2018 Ram 2500, you have a few options, each with its own pros and cons:

• Ram Dealership:

  • Pros: Guaranteed genuine OEM part, often includes programming in the purchase price, and ensures compatibility.
  • Cons: Most expensive option, typically costing $250 - $400 or more for the fob and programming.

• Automotive Locksmith:

  • Pros: Can often provide OEM or high-quality aftermarket fobs, program them on-site (often mobile service), and are generally more affordable than dealerships.
  • Cons: Quality of aftermarket fobs can vary; ensure the locksmith provides a warranty.
  • Ballpark Price: Expect to pay $150 - $300, including the fob and programming.

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

  • Pros: Potentially the cheapest option for the fob itself.
  • Cons: You're buying just the fob (aftermarket), not the programming. You'll still need to pay a locksmith or dealer to program it. Risk of receiving counterfeit or incompatible fobs.
  • Ballpark Price: Fobs can range from $30 - $100, but remember to factor in the additional programming cost.

If on-board programming isn't supported

Since your 2018 Ram 2500 requires specialized programming, the cost will include both the key fob itself and the service of linking it to your vehicle. The built-in immobilizer system uses a transponder chip within the key fob to prevent the engine from starting without the correct, programmed key. This is a crucial security feature that requires the advanced diagnostic tools mentioned earlier.

Always confirm the total "out-the-door" price when getting quotes, ensuring that programming and any key cutting (for the integrated emergency key) are included. It's advisable to get quotes from a couple of different locksmiths and a dealership to compare prices.

Find a mobile locksmith or shop on Repairius.