Your key-fob just like your phone has a fun little disclosure that’s very common and is a FCC requirement (and similar worded disclosures elsewhere) that goes something like this:
Your device must not create unwanted interference but must accept any unwanted interference.
Why?
Because these devices talk on “unlicensed” channels, they are still regulated but just about anyone who follows the regulation can use the spectrum without a license. Wifi, Bluetooth, microwaves, key-fobs, etc all use this same 2.4ghz unlicensed spectrum and it’s incredibly congested.
So why is the manual telling you that your phone and key-fob can interfere? It’s pretty standard after all no? It’s actually super simple and super complicated why they’re disclosing this issue. Your key-fob is constantly powered and broadcasting as it’s a smart key, more so the smart key is designed to be -very- low powered so the car should only turn on inside the car, this way when you’re near your car someone can’t just jump in turn it on and drive away. In theory. But the second side of this super underpowered key-fob is your phones much higher powered (.1-1watt haha) powered phone can easily prevent it from working. If your key-fob isn’t working, especially if the batteries aren’t fresh, you’ll generally know why. Just a matter of inches can make the difference.
