How Long Does A Key Fob Battery Last? (Explained!)

When your car key fob’s battery runs out of power, it can be frustrating and unpleasant to deal with, that is why in this article we are going to look at how long a key fob battery lasts and how you can find out when the battery is about to die. read on!

How Long Does A Key Fob Battery Last?

In short, A Key fob battery will last 3-4 years depending on its usage. The more the keyfob is used, the quicker its battery will die. A keyfob battery can last up to 5 years if it’s rarely used (only activated when unlocking doors). If you use your key fob often (e.g. every day), then you may need to replace it after 3 years.

Signs That You Need To Replace Your Key Fob Battery

To guarantee you are not caught off guard, here are some signs you need a new key fob battery:

Reduced key fob range

If you notice the key is not working when you are within normal range, it means the battery is dying. When the battery grows weaker, the transmitter is unable to send the appropriate signals.

Delayed response

When the doors take longer to lock or unlock, it is time to replace the battery in your fob key since it is frail and is not working as fast as it was before.

Irregular functionality

of the key fob, You may realize that there are instances where you have had to press the button several times before it works. If that is the case, you have caught it early, and you can go ahead and arrange to replace the battery

A warning sign on the dashboard

When the battery is running low, you will get a warning light on the dashboard.

Key fob LED light

When you press the key, there is a light that flashes. If it does not, either the battery is dead or something is wrong with the key.

Will Your Car Still Start When the Key Fob Battery Dies?

Manufacturers know you might experience a malfunction on the key fob, or its battery might die out on you. Hence, they have provided a back where you can still start your car in case of anything. Some have a hidden key that you can use to start the car manually. In most cars, the chip in the key works without the use of the battery. Therefore, the car can still start as long as you are in close range.

Can You Replace the Battery Yourself?

Changing a battery on a key fob is very easy. Start by opening the shell, which you can use a flat screwdriver or even your fingernail. Find the battery and replace it. Remember to be gentle not to break it. Close the key by pressing all around to ensure it is completely shut and you are done.

Key Fob Functions

Did you know you can use your key fob for other functions besides opening your doors and starting the car? Here is a list of tasks it can perform:

  • Rolling down your windows To do this, press the unlock button twice, holding it the second time, and windows open.
  • Use it to fold the mirrors When you want to fold your mirrors when you have packed in a tight space. To avoid a pillar or wall or another car bumping into your side mirrors you can fold them. To do this, hold the lock button for about ten seconds.
  • It can help you find your car Have you ever forgotten where you parked your car? If you have not, it might sound far-fetched, but it is very prevalent. If this happens to you, use your key fob. It is set with a panic button that will set off the car’s alarm.
  • Use your key fob to adjust your seat Do you share the car with your partner or other family members? One of the few things you would find frustrating is adjusting your seat every time you need to use the car. However, no need to get so upset anymore. You can set the memory of your seat’s position on your key fob. When you get on the seat, choose your preference, and it will adjust your seat for you.

Conclusion on key fob Battery Life

A key fob makes your life a bit smoother while using your car. It will hardly give you any problems. You only need to change the battery every few years, and you’re good to go.