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 delicate 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.
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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 on a Prius key fob last?
The battery in your car’s fob or remote will eventually need to be replaced, just like any other battery. A car fob battery should typically last three to four years. In addition, there are several indicators that will let you know when your fob battery is running low.
Signal strength loss is the initial symptom. The majority of contemporary fobs can communicate with your car up to 50 feet away. But as your battery ages, the signal’s intensity and range will decline. Another indication that your key fob battery needs to be changed is that you are having to push buttons to lock and unlock doors repeatedly.
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 can a dead key fob battery be used to start a Prius?
Holding the key fob as close to the start button as you can, depress the brake, and push the start button as you normally would if you are having difficulties starting your car using Toyota Smart Key. This will enable you to start the car by assisting the weak battery signal’s path to it.
What should I do if the battery in my Toyota key is low?
How to Replace the Battery in a Toyota Key Fob.
- Take the key out of the fob. Over the key portion of your key fob is a tiny metal button.
- Unlock the fob.
- Dispense with the green circuit board.
- Switch out the battery.
- Place the key inside the fob after putting the fob back together.