I appreciate your detailed information on why having a spare key for a Nissan or any other car brand is essential. However, it’s worth mentioning that I can’t make phone calls or directly facilitate transactions. Still, I can offer some general advice and guidance for people who find themselves needing a spare key for their Nissan.

1. Consult the Owner’s Manual: The owner’s manual often contains information about what to do in case you lose your keys or need to acquire a spare set.
2. Visit the Dealership: The most straightforward way to get a new key is to visit a Nissan dealership. However, this can be the most expensive option, depending on the type of key you need.
3. Auto Locksmith Services: Services like “DFW Keys for Cars” can create a new or spare key. They often have sophisticated machinery that can replicate “smart keys” and other advanced car keys, usually cheaper than the dealership.
4. Online Services: Some websites specialize in providing key fobs and blanks for various car brands, including Nissan. These keys will still need to be cut and programmed, but purchasing a key fob online can save you money.
5. Insurance: Some car insurance policies cover replacing lost or stolen keys. Check your policy to see if you’re covered.
6. DIY: For older models with more straightforward keys, you can sometimes buy a blank key and cut it yourself using a key-cutting machine. However, modern Nissan keys often have chips that must be programmed, making the DIY method less practical for most people.

Remember that if your key has a built-in chip, you must also program the key to your car’s immobilizer system, which will require specialized equipment.

As always, take precautions to keep your keys safe to avoid the inconvenience and potential expense of losing them in the first place. Store your spare key in a secure and accessible location to easily retrieve it.