How To Replace A Toyota Prius Key Battery

A replacement smart key for a Prius can cost up to and over $100, therefore we’re going to walk you through the process of replacing the batteries in one. This could be an excellent place to start if you’re having issues with yours. A new battery is far less expensive than a new key, so it’s worth trying before spending money on a new one even though it’s not a guarantee that it will solve your problems.

There are a few things you’ll need before you begin disassembling stuff. The replacement battery comes first. This battery is a 2032 button cell. Buy a quality brand; they do have a tendency to last longer. Even though changing it isn’t that difficult, the fewer frequently you have to do it, the better. You can purchase a four-pack of them on Amazon for just over $7.

You also require a mini Phillips screwdriver. I suggest getting this kit from Amazon if you don’t already have one. It provides everything you require and is similar to a kit I purchased for fixing iPhones. The screws will adhere to the screwdrivers because they are magnetic. The entire gear costs less than $7 and significantly simplifies the task.

A magnetic tray is quite helpful but not absolutely necessary. Use this to maintain the screws’ position. Once more, you can purchase one from Amazon for about $7. The screws can be held together with anything, but in the past I’ve knocked over dishes and scattered screws all over the place, never to be seen again. Just a helpful hint.

Take the key out of the housing’s interior. To do this, turn the key so that the Toyota logo is facing you and move the mechanism at the bottom to the left. Then, pull on the key. It ought to be easy for it to decouple itself.

You must now take off the smart key’s back cover. The Toyota logo is on this side. To accomplish this, slide the bottom mechanism on the left while putting pressure to the covering. How difficult it is will depend on how old your key is. If you’re having problems, you can slip anything to give you a little more traction in the seam at the top, above the Toyota emblem. Two plastic triangle tools for this purpose are included in the screwdriver kit that is linked above. If you didn’t, a guitar pick or credit card will work just as well. To avoid damaging the plastic casing, avoid using anything metallic to pry it open.

There are four screws to remove after the casing is removed. Remember to be gentle when using the micro Phillips head screwdriver on this. Stripping the screw heads at this point is the last thing you want to do. Once they’re out, raise the covering you removed the screws from using a plastic tool or a small flathead screwdriver. It ought to come out easily, exposing the battery.

The old battery should protrude out if you apply just a little pressure to the holder’s flanged edge. To properly install the new battery, keep in mind to note which way the old one is facing. Slide the new battery in after removing the old one. Remember to install it correctly; the positive terminal should face outward and in your direction.

Replace the internal housing’s four screws and plastic cover. If you need to change the battery again, damage or problems may result from overtightening the screws. Reinstall the outer case, which bears the Toyota emblem. To make it click into place, slide it into position while depressing the sliding mechanism at the bottom to the left. Slide the mechanism to the left one more to reinstall the key.

By pressing one of the lock buttons, you may verify if it operates. If it is, you should see a red LED blinking.

What happens if the battery in your Prius key dies?

The start button can be actuated by holding the dead key fob very close to it. The vehicle will then start and run once you press the start button. If this doesn’t work completely, push the start button while holding the fob against it for a brief period of time. This will actually depress the start button. Should operate

The battery inside your key fob can be changed by you. The same secret key that unlocks a lever can be used to split the plastic lid. In case you have any inquiries, watch this video. Never throw away a dead battery. Wherever you go, carry it with you to purchase the button battery replacement. These are frequently on hand at pharmacies, hardware stores, home improvement centers, and other similar establishments. On your old battery is printed the precise type of button battery. Don’t put those in your trash or the recycling since they should go in a dedicated bin for recycling.

How long does the battery in a Prius key last?

The Power Cell Your Toyota Prius’s low notice tells you that the key battery needs to be changed since it is getting low. Your ability to start and unlock your car depends on the key battery.

If the key battery is not changed, ultimately the key will no longer function at all. You won’t be able to unlock or start your car as a result. So, as soon as you get the warning message, it’s crucial to change the key battery.

How long does the battery in a Toyota key fob last?

When your Toyota key fob’s battery is running lowthe typical battery life is one to two yearsan alert will sound when the engine is turned off.

Which battery is used by a 2014 Prius key?

How to change the battery in the Toyota Prius “Tombstone key fob” (2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019) For a step-by-step demonstration on how to replace the battery in your key fob, see the video below. You will require a single CR2032 battery.

If the battery in my key dies, would my car stop?

This issue has been foreseen by automakers ever since the key fob was created. Nothing will happen if your key fob dies while you’re driving. Simply because the key fob is a locking and starting device only, the automobile will continue to run. The key fob has no influence over the ignition or engine once the automobile is moving.

Even though you’ll need to go to a general store or pharmacy to get the battery, replacing the battery in your key fob simply takes a few minutes if you’re pressed for time.

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If your key fob dies, can your car still start?

  • On your key fob’s back, search for a little sliding button. You can slide the key fob cover off or click a button to do so. To get it to release, you might need to use your fingernail and a little force.
  • Use the mechanical key to unlock the door after you get it. If your door doesn’t have a key slot, it’s likely concealed beneath the handle cover. To access the key slot, carefully remove the handle cover by using the key.

Now that you’re inside, here’s how to start the car with a dead key fob:

  • Close the key fob after inserting the mechanical key once more.
  • Press the START button with the key fob. Instead than pressing the button with your finger as usual, push the key fob against it. Many manufacturers utilize this backup device to make sure the car can start even if the key fob is dead.
  • Some vehicles have a secret key fob slot that can be used to start the engine. For instance, the backup slot is located inside the cup holder in some Ford models. Your fob will fit perfectly in the slot. Use the push button start as usual after inserting the dead key fob into the holder.
  • Check the steering column for a physical key slot if neither of these approaches succeeds (some Mazda models have this feature). To start the car, place the mechanical key within the keyhole.