2016 Nissan Altima Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2016 Nissan Altima 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/closes.

The 2016 Nissan Altima's intelligent key system requires specialized diagnostic equipment to sync a new key fob with the vehicle's onboard computer. This process typically involves connecting a scan tool to the car's OBD-II port to access the vehicle's security system. This is a common security measure to prevent unauthorized key duplication and vehicle theft.

Battery replacement

Replacing the battery in your 2016 Nissan Altima key fob is a straightforward process:

1. Locate the release button/slot: On the back or side of the key fob, you'll find a small button or slot.
2. Remove the emergency key: If your fob has an integrated emergency key, press the release button and pull out the physical key blade. This often reveals a slot for prying open the fob.
3. Gently pry open the fob: Use a small flathead screwdriver, guitar pick, or coin to carefully separate the two halves of the key fob casing. There's usually a small notch or seam where you can start prying.
4. Note the battery orientation: Before removing the old battery (CR2032), make a mental note or take a picture of which way the positive (+) side is facing.
5. Remove and replace the battery: Carefully pop out the old CR2032 battery and insert the new one, ensuring it's oriented correctly.
6. Reassemble the fob: Align the two halves of the key fob and press them firmly together until they click securely into place. Reinsert the emergency key if applicable.

Where to buy a replacement fob

When it comes to purchasing a replacement key fob for your 2016 Nissan Altima, you have a few main options, each with its pros and cons:

• Nissan Dealership:

  • Pros: Guaranteed genuine OEM part, often comes with programming included, and you can be sure of compatibility. They will also handle any necessary key cutting for the integrated emergency key.
  • Cons: Most expensive option. Expect to pay anywhere from $250 - $400+ for the fob and programming.

• Automotive Locksmith:

  • Pros: Often significantly more affordable than a dealership. Many locksmiths can provide both the key fob and programming services on site, and can cut the integrated key blade. They typically have aftermarket options that are just as reliable as OEM.
  • Cons: Quality of aftermarket fobs can vary. It's crucial to choose a reputable locksmith.
  • Cost Expectation: $150 - $250+ for an aftermarket fob, cutting, and programming.

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

  • Pros: Potentially the cheapest initial purchase price for the fob itself.
  • Cons: You're buying just the physical fob (or a blank). You will still need to find a locksmith or dealer to cut the key blade and program the fob to your vehicle, adding to the overall cost. There's also a risk of receiving a low-quality or incompatible aftermarket fob. Be sure to match the FCC ID (CWTWB1U815) and OEM part numbers to ensure compatibility.
  • Cost Expectation: Fob alone can be $30 - $80, but then you still need to factor in cutting and programming costs from a locksmith or dealer.

If on-board programming isn't supported

As established, your 2016 Nissan Altima requires specialist tools for key fob programming. This means you'll be relying on either a Nissan dealership or a qualified automotive locksmith.

• Cost Expectations: As mentioned above, expect to pay $150 - $250+ from a reputable locksmith for an aftermarket fob, cutting, and programming. A dealership will likely charge $250 - $400+ for an OEM fob and programming.

• Immobilizer Transponder: The key fob for your Altima contains an immobilizer transponder chip. This chip communicates with the vehicle's immobilizer system, which is a crucial security feature that prevents the car from starting if the correct chip isn't detected, even if the key blade fits the ignition. When a new key fob is programmed, its transponder chip is also paired with your vehicle's immobilizer system. This is why specialized equipment is needed – to correctly enroll the new transponder with the car's ECU (Engine Control Unit).

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