How Long Does a Key Fob Battery Last?

In order to get into a modern car, you will usually have to have the key fob that comes with the car. These key fobs can do everything from unlock the doors of the car to remote starting, in some cases. These fobs are powered by a small flat key fob battery. Just like any other battery, eventually the key fob battery will have to be replaced in order to keep the key fob functional. Every time that a driver wants to use their key fob, the battery will have to produce the electricity that is needed to power it. A key fob battery will usually last around three to four years before it will need to be replaced. Not having a fully functional key fob can lead to a lot of frustration and stress. In some cases, it will be impossible for a person to get into their car without a working key fob. When the time comes to get a new battery, you will have to take some time to research exactly what you need. By getting an idea of what is needed, you will be able to find the right battery in no time at all.

Usually, getting the battery out of a key fob can pose a bit of a problem for an inexperienced car owner. Some key fobs will snap apart, while others will have a screw that will need to be taken out. Attempting to do this on your own may cause you to damage the key fob, which will cost you even more money to fix. Many of the key fobs out there are quite expensive due to how high tech they are.

When your key fob battery is bad, here are some of the things that you will start to notice when your key fob battery is going bad:

  • The car will not unlock
  • It is taking a lot more effort to get the key fob to work
  • The buttons on the key fob will only work on occasion

By noticing the signs that your key fob is giving you, it will be easy to replace the battery and restore its functionality. Make sure that a high-quality replacement battery is replaced correctly or just have an experienced mechanic inspect and replace the key fob battery for you.


Next Step

Schedule Power door locks are not working Inspection

The most popular service booked by readers of this article is Power door locks are not working Inspection. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. We currently cover over 2,000 cities and have 100k+ 5-star reviews... LEARN MORE

SEE PRICING & SCHEDULING

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Recent Power door locks are not working Inspection reviews

Excellent Rating

(108)

Rating Summary
100
5
2
0
1
100
5
2
0
1

Benji

22 years of experience
199 reviews
Benji
22 years of experience
GMC Envoy - Power door locks are not working Inspection - Phoenix, Arizona
Very friendly and answered all my questions. And he even told me other problems that needed to be fixed

Bereketeab

7 years of experience
101 reviews
Bereketeab
7 years of experience
Honda Odyssey - Power door locks are not working - Sacramento, California
Bereketeabs was great was here on time and fixed my problem would highly recommend this mechanic very nice guy

David

10 years of experience
161 reviews
David
10 years of experience
Oldsmobile Cutlass Ciera - Power door locks are not working - Altamonte Springs, Florida
David is very knowledge, personable and diligent in his work. It was a great surprise to me to find such a professional like David within a short time from a computer search for a problem with my 1996 Oldsmobile Ciera SL. Thank all of you. Your software is superb.

Joel

21 years of experience
984 reviews
Joel
21 years of experience
Hyundai Genesis - Power door locks are not working - Ponte Vedra Beach, Florida
Joel showed up and did exactly what was needed to be done. After watching Joel work for about 10 minutes it's very obvious he knows his stuff

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Related articles

How Do Automatic Car Door Locks Work?
Whether Whether they are single purpose or multi-purpose, electronic car door locks have standard features: A latch/door lock An actuator Actuator rods Activated by radio Electric car door locks operate by receiving a radio...
Symptoms of a Bad or Failing Ignition Lock Cylinder
Common signs include the car not starting, the key getting stuck in the ignition or not going in, and issues power on the vehicle.
How Long Does a Tailgate Lock Cylinder Last?
SUVs SUVs come in a range of shapes and sizes, but almost all of them have one thing in common – they have a rear tailgate. You might call it a hatch, or the rear door, but it boils down...

Related questions

Doors not unlocking when I use key fob

Hi. I'm going to assume they open when using the door lock switch. First of all, pressing the fob once only unlocks the driver's door. The fob must be pressed a second time within 5 seconds to unlock the rear...

key fob not bring recognized.

Hi there. You will have to reprogram the key fob to your vehicle to allow the chip in the key fob to be recognized in the security immobilizer system. Click here to reprogram the key fob. If you need further...

What conditions determine whether a door can be locked or unlocked?

Locking and unlocking your doors is as simple as using the remote, the electronic key or the mechanical key. However, there are a few things that you should know so you’re not taken by surprise when they happen: You...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com