How to reset my key fob after replacing the battery?

      by Phil Borges // in Car

The car key fob is one of the most important items for many modern vehicles. They're convenient, easy to use, and an excellent way to protect against thieves who might want your car. But when you replace a battery in the key fob, it can be challenging to remember how to reset it so that you can start using it again. Here's our guide on how to reset the key fob after replacing the battery. With these simple steps, you'll be back on track in no time!

How to reset key fob after changing the battery?

Car key fobs, also known as electronic car keys, are used in controlling the doors of a car and starting it from afar. Car key fob malfunction can occur with time due to signal loss which requires reprogramming for continued use.

When a key fob is not working as it should, it may just need to be reprogrammed. A car owner can do this without needing help from an auto locksmith by following simple the step by step procedure below:

Step 1. You should get into the driver's seat and sit with both your car key and fob. Be sure that all doors are closed then turn on the ignition by inserting the key in its position to start up your engine without actually starting it yet.

Step 2. Aim your key fob at the transmission receiver in front of your mirror. Press and then hold the lock button for a couple of seconds to lock, then press another one to unlock doors.

Step 3. Turn off the ignition then shut down the vehicle as soon as you grab the key. After a few seconds, the car's system will reset the instructions. Press the lock button for a few seconds after you turn the ignition and then remove the key from the ignition slot.

Step 4. Repeat the process again by turning on your car without starting it this time. Press the lock button of the key fob. You will hear a sound as the car locks itself, which is a sign that the process went successful.

Each car has a unique process for reprogramming or resetting the key fob. For example, some types of vehicles may require you to press two buttons simultaneously, while other models won't even work unless it's within three feet of the car. The generic steps I discussed above are common across most makes and models but might not be applicable in all cases, so make sure that you consult your manual before attempting any programming procedures yourself.

It is recommended that you must carefully read the user manual or search it on the internet to have some guidelines for car key fob reprogramming. Different manufacturers might require different steps, as they usually do not provide a universal guide.

Why is my key fob not working after the reset?

If your key fob doesn't work after the reset, you may need to check these three things.

1) See if you have a bad battery. Sometimes when your key fob stops working, it's due to a battery that has died. If you open up your car door with another key fob and it works just fine, then chances are the issue in your key fob is because of a bad or drained-down battery.

2) There could be an electrical problem that causes this issue.

3) There could be a bad connection, or you have a defective key fob. In this case, contact your car dealer, and they will take a look at your key fob and see what the issue is.

Do I need to replace my key fob if it's not working?

If your key fob is not working, it doesn't necessarily mean you need to replace the battery or buy a new key fob. Conduct an initial inspection on the buttons first and see if they are working or not. If the buttons still don't work after an inspection, then you might need to consider a key fob replacement.


Key fobs are very important to keeping your car safe and secure. Remember that after replacing a battery, you will need to reset the key fob before being able to use it again.

These accessories are created and designed carefully to prevent car thieves from breaking into your cars. Key fobs allow convenient use of locking and unlocking your car from a distance. You won't be required to rummage through your bag in search of the key. You would have immediate access to your car with a remote entry. Be sure to have your key fob checked as soon as you notice something out of the ordinary.

About the Author

Hi, I'm Phil Borges.. thanks for reading.. My wife says I can't shut up about batteries so to save my marriage I've started this blog .. where I'd be ranting about batteries! Please leave a comment if you have any questions, I'm happy to help!