2015 Toyota Tundra Key Fob Programming

This guide provides comprehensive instructions for programming new key fobs for your 2015 Toyota Tundra, along with essential information regarding replacement options, battery types, and common issues.

Quick reference

Step-by-step on-board programming

The 2015 Toyota Tundra has an on-board programming procedure for the remote portion of the key fob. This will allow you to unlock/lock your doors. The transponder chip, which allows the vehicle to start, requires specialist equipment for programming. This will typically require a locksmith or a Toyota dealership.

Before you begin: Ensure all doors are closed and unlocked. Have all existing and new key fobs ready.

1. Start with the driver's door open. All other doors should be closed and unlocked. The key should be out of the ignition.
2. Insert the original master key into the ignition. Do not turn it.
3. Within 5 seconds, remove the key.
4. Immediately insert and remove the key from the ignition twice. This should happen within 10 seconds of removing the key in step 3.
5. Close and open the driver's door twice. The door must be fully opened and then fully closed each time.
6. Insert the original master key into the ignition. Do not turn it.
7. Within 10 seconds, remove the key.
8. The power door locks should cycle (lock and unlock) once. This indicates the vehicle is in programming mode.
9. Press and hold the LOCK and UNLOCK buttons simultaneously on the new key fob for 1.5 seconds.
10. Within 3 seconds, press the LOCK button once on the new key fob.
11. The power door locks should cycle once. This confirms successful programming of the new key fob. If the locks cycle twice, it indicates a programming error.
12. If programming additional key fobs, repeat steps 9-11 for each new fob within 40 seconds.
13. To exit programming mode, open the driver's door. The locks should cycle once again, indicating exit from programming mode.

Battery replacement

The 2015 Toyota Tundra key fob uses a CR2032 lithium coin battery. Replacing it is a straightforward process:

1. Locate the small notch or slot on the side of the key fob casing.
2. Carefully use a small, flat-head screwdriver or a coin to pry the two halves of the fob apart.
3. Gently remove the old CR2032 battery.
4. Insert the new CR2032 battery with the positive (+) side facing up (this is usually towards the buttons).
5. Align the two halves of the key fob and snap them back together until they are securely closed.

Where to buy a replacement fob

When considering a replacement key fob for your 2015 Toyota Tundra, you have several options, each with pros and cons:

• Toyota Dealership:

  • Pros: Guaranteed genuine OEM part, often comes with programming included, expertise for transponder programming.
  • Cons: Most expensive option. Ballpark price: $200-$350+ (for key and programming).

• Automotive Locksmith:

  • Pros: Can provide and program both OEM and high-quality aftermarket fobs, often at a lower cost than a dealership. Can cut new key blades and program transponders.
  • Cons: Quality of aftermarket fobs can vary depending on the locksmith's supplier. Ballpark price: $150-$250+ (for key and programming).

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

  • Pros: Cheapest option for the physical fob itself. Wide variety of aftermarket options.
  • Cons: You're only buying the physical fob; programming (especially the transponder) and key cutting will be an additional cost. Risk of purchasing a low-quality or incompatible aftermarket fob. Ballpark price: $20-$70 (fob only).

If on-board programming isn't supported

While the remote portion of your 2015 Toyota Tundra key fob can be programmed via the on-board method described above, the immobilizer transponder chip, which is crucial for starting the vehicle, cannot. This requires specialized diagnostic equipment.

• Cost Expectations: If you purchase a new key fob that includes a transponder (which most do), you will need to pay for programming the transponder. A mobile locksmith typically charges between $50-$150 for transponder programming, in addition to the cost of the key. Dealerships may charge more, often including it in a bundled price with the key itself.
• Immobilizer Transponder: The 2015 Toyota Tundra uses a type G transponder chip. This chip communicates with the vehicle's immobilizer system. If the transponder isn't correctly programmed to your Tundra, the vehicle will not start, even if the remote functions work.

Find a mobile locksmith or shop on Repairius.