Is your car’s key fob not responding? There could either be something wrong with the internal electrical system or with your battery! If it’s the latter, this post will tell you how to change the battery in your car’s key fob. Show
We’ve all been in this situation: you approach your parked car, ready to drive away to your next destination, and rummage for the key in your pocket. However, imagine your surprise when pressing the familiar unlock button yields no response! You try and try again to no avail, ultimately deciding that something must be wrong with the key fob. While there are several issues that could create such problems, a dead battery is the most common culprit. This post answers everything you need to know about changing the battery in your car’s key fob.
What is a key fob?A key fob – sometimes called a remote keyless system – is a handheld device that allows you to lock and unlock your vehicle remotely. It consists of a remote control and RFID antenna that is connected to your car’s locking system. Some key fobs have a retractable physical key with which you can lock/unlock your car manually as well. What happens when the key fob battery is low?Typically, a key fob with a low battery starts exhibiting some or all of the following symptoms:
How long do key fob batteries last?Most key fob batteries last for around three to four years with regular usage. Can you unlock your car with a dead key fob?Yes! Having a dead battery in your car key fob does not mean that you are left stranded. Car manufacturers have foreseen this situation and built-in fail-safes to ensure you can unlock your car even in such a situation. Here’s what you should do:
Mechanical keys are usually included in the key fobs of all major car manufacturers like Honda, Kia, Toyota, Mercedes, Ford, etc. Also read: All you need to know about car key replacement Can you drive with a dead key fob?No auto manufacturer is going to pin everything on the key fob working all the time. Therefore, even if your battery dies, you can still use the fob to drive the car.
Can you replace a key fob battery yourself?You can replace the battery in your key fob by following these steps:
Do I need to reprogram the key fob after changing the battery?Typically, you do not need to reprogram the key fob after changing the battery. However, if you’ve replaced not just the batteries but also some of the internal wiring and electronics, you may need to reprogram it by pairing it with your vehicle once again. The usual sequence for reprogramming your car battery is as follows:
What kind of battery does the key fob take?Key fobs use 3V button cell batteries – usually the CR2032. Other button cell batteries that are commonly used include CR2016, CR1616, CR2025, and CR2450. Popular brands that sell these batteries include Duracell, Energizer, and Panasonic. How much does a key fob battery cost?A button-cell battery pack can cost you between $2-5 depending on the brand and number of batteries you buy. For example, an Energizer pack of two costs $2, while a Panasonic pack of four costs $3.75. Frequently Asked Questions (FAQ)To replace the battery of a Honda key fob, ensure you first buy a replacement CR2025 battery. It will cost you between $2-4 dollars for a pair of batteries.
Will a dead key fob cause a car to not start?No, you can start your car even if the key fob has a dead battery. You can either use the mechanical key stored in the fob or start the car by pressing the START button with the key fob. Here’s more info on top-rated airport parking, the best parking spots in your city, affordable auto insurance, easy auto refinance, and high-quality car washes near you. Can I change the battery in my key fob myself?Yes, you can. DIY is quick, simple, and cheap. To do this, pry apart the key fob and replace the coin battery inside with a new one.
What kind of battery does a key fob take?What kind of battery does the key fob take? Key fobs use 3V button cell batteries – usually the CR2032. Other button cell batteries that are commonly used include CR2016, CR1616, CR2025, and CR2450. Popular brands that sell these batteries include Duracell, Energizer, and Panasonic.
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