Question 1

My key broke in the ignition. Can you get it out?

Accepted Answer

Yes. Broken key extraction is a standard job for a mobile automotive locksmith. We use specialized tools to remove the broken piece without damaging your Nissan's ignition cylinder. One locksmith familiar with Nissans warns that once a key breaks off inside, the wafers and channel inside the ignition can get damaged, and even if the broken piece comes out, the cylinder may need replacement soon. Once the piece is out, we can cut a new key from the extracted fragment or from your vehicle's lock data and program it on the spot. Nissan models that still use a physical ignition key are most likely to run into this.

Question 2

What is a Transponder Key?

Accepted Answer

A Transponder Key is the type of key your 2002 Nissan Altima uses. It combines a physical key blade with an electronic transponder chip and 3 buttons for remote functions. The chip communicates with your Nissan's NATS immobilizer to authorize the engine to start. If the blade breaks but the electronics are still intact, we can often transplant the chip into a new key shell and save you the cost of a full replacement. If both are damaged, we cut and program a completely new key on site.

Question 3

My Nissan says key not detected. What do I do?

Accepted Answer

Start with the basics. Replace the fob battery, since Nissan Intelligent Keys drain batteries fast and this is the most common cause of "Key Not Detected." Altima owners say the batteries can die in as little as a year and a half. If you have a push-to-start Nissan, try holding the fob with the Nissan logo against the start button while pressing the brake. That uses the backup signal path and often works when the battery is low. Also try tapping the fob on the side and cleaning the battery contacts with a pencil eraser, since Nissan fobs are known for bad connections. If a fresh battery and the backup method do not work, the issue may be the NATS antenna, the fob, or even a weak car battery, and that is when you call us.

Question 4

What is the FCC ID for the 2002 Nissan Altima key?

Accepted Answer

The FCC ID is . This identifier on the back of your fob tells us exactly which replacement key your vehicle needs. If your key is broken or damaged and you can still read the FCC ID on the old fob, give it to us when you call. It speeds up the process and guarantees we bring the exact right key to your location. If the fob is too damaged to read, we can identify it from your vehicle's year, make, and model.

Question 5

Is all-keys-lost more expensive than a regular replacement?

Accepted Answer

Yes. When you still have one working key, adding a spare is a straightforward NATS registration. When all keys are lost, the Nissan immobilizer requires a full BCM code read, PIN generation, and complete key reset before new keys can be programmed. Nissan owners report AKL dealer quotes of $400 to $600 on older models and higher on newer Intelligent Key vehicles, while add-a-key at the dealer runs $300 to $450 depending on the model. With us the gap is smaller, but AKL still costs more than a spare because of the extra work involved. That is why we always tell customers: get a spare made while you still have a working key.

2002 Nissan Altima
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2002 Nissan Altima
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No Nissan Altima Key? We Start From Scratch

2002 Nissan AltimaKey Replacement - Save vs Dealer in San Diego

No Spare Needed | We Make Keys On-Site

2002 Nissan AltimaKey Options