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Smart Keys and Push-to-Start: What Every Owner Should Know

If your car comes to life without requiring a key in the ignition but just pressing the Start button, you own a smart key. Proximity keys work so effortlessly that most car owners hardly think about them until the battery fails or it gets lost. So let's look into how it works, what the most typical troubles are, and how a replacement is done.

How does the system work

A smart key or proximity key sends a signal to your vehicle via a radio link, as soon as the key gets within range, the car recognizes it – the door can be unlocked simply by pressing a switch or pushing start button, there's no need to take out the key and put it back in the lock; that's exactly what makes it such a cool invention, it evolved from earlier transponder key technology.

What to do when the battery dies

Your smart key will still have a tiny battery in it and as it drains, your vehicle stops recognizing it correctly, the good news is that manufacturers take that possibility into account and equip cars with backups that help start the engine and unlock doors with a dead battery. There should be a mechanical blade in your fob for opening the door, and a designated spot in the car, where you'll be able to hold the fob and unlock the door or turn on the engine.

Check in your owner's manual how you are supposed to start your car with a drained battery and learn that procedure before it happens. You won't get stuck anywhere.

Common issues with smart keys

There are some issues that tend to happen frequently with proximity keys:

Low battery

As mentioned above, a faulty battery prevents the car from recognizing the key. Installing a new battery fixes the problem.

Range of operation shrinks

Once again, it might mean that you'll have to approach your car closely in order to activate it.

Heat damage

Smart keys are electronic devices, and they don't appreciate exposure to high temperatures, like in Los Angeles.

Lost or dead fob

If your key doesn't exist anymore, then you'll have to replace it. And this procedure will involve not only buying a new smart key, but programming it as well.

Replacing a smart key

It's always a more challenging task to replace a proximity key, since all the elements in it are electronic. A fob is needed to be supplied, mechanical blade cut, and programmed specifically for your vehicle, therefore having a spare key simplifies the process even more, since the locksmith can use it for additional information. Read how much will replacement of your key cost.

Will a locksmith replace my smart key?

Many vehicles allow their keys to be programmed outside of dealerships. Mobile locksmith services can provide you with a fully functional key in this case. Just give a call and describe your car and its specifications.

Most smart key issues can be avoided

Having a smart key is a matter of convenience and comfort. Learning the method of starting your car with a bad battery and checking on the battery condition prevent you from most issues, so if you still need assistance with your smart key, contact a locksmith.

How to avoid issues

A few simple recommendations help you avoid most smart key troubles:

  • Change your smart key battery promptly, immediately when the range becomes shorter than it used to be.
  • Don't put your key among other keys with the risk of damaging its buttons and breaking its casing.
  • Learn the process of turning your engine on without your key before it happens.
  • Give each of those people who have access to your vehicle their own coded key.

Need a smart key coded, you're at the right place, our technicians offer mobile fob and smart-key programming throughout Los Angeles and the surrounding areas.

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