do i have to reprogram my fob after battery replacement?

Do I Have To Reprogram My Fob After Battery Replacement?


August 10, 2022

Do I have to reprogram my fob after battery replacement?

A key fob is a little electronic gadget that allows you to open your car door or even start it from a distance using your smartphone or other electronic devices.

However, even with a battery change, your key fob may experience a malfunction at some point.

So, why is it that a Honda key fob no longer works after a battery replacement has been performed?

How many key fobs can be serviced with a single battery replacement?

Because in a few instances, their electronic system is reset throughout the switching process, this isn’t truly the case.

If this occurs, the key fob will need to be reprogrammed to pair with your vehicle once more.

guy ga25cf78c3 1920

A battery replacement is a simple task that can be completed at home; however, the battery that you choose should be an original equipment manufacturer part.

Additionally, be certain that you take all necessary precautions when changing it.

The next step is to reprogram it if anything doesn’t work.

This is possible for specific models, however, it’s not always the case.

It could potentially be caused by incorrect installation, a faulty circuit, a damaged key fob, or other factors.

Your Honda Key Fob May Not Work For These 6 Reasons

For many people, Honda is a famous brand that is best recognized for producing high-end SUVs and sedans.

Honda has integrated remote start functionality in the majority of its 2019 models, even though all of its vehicles come standard with a keyfob.

They are one of the most dependable products on the market, with a range of approximately 400 feet.

With all of the above-mentioned features, it might be extremely aggravating when the key fob fails to function.

The batteries, in most cases, can be held responsible; however, this is not always the case.

Even if you replace the battery in your key fob, it may not operate.

Perhaps you should take a look at the other variables in this situation.

1. Reset Key Fob

For the key fob to work, this pairing must be completed properly.

The transmitter on the key fob communicates with the receiver on the vehicle through radiofrequency.

The only person who can unlock it is the owner of the vehicle.

The extra protection makes your vehicle safer and more secure.

However, if you replace your key fob or battery, the connections may be reset, and your car may no longer recognize it.

Remote control operation requires reprogramming the key fob. Your car may not start unless it is reprogrammed.

In case your Honda key fob’s red light is not working, here’s why: Your key fob may need to be reprogrammed again.

This is a common issue with aftermarket key fobs, not just the originals. Owners of used cars report it as well.

As you will see below, programming a key fob is straightforward.

While older cars can be serviced without special equipment, modern cars require specialized tools and computer software.

A locksmith or a Honda dealership may be required in this case.

Unlike the former, the latter may be costly.

2. Damaged Key Fob

It’s also conceivable that the key fob is broken.

Your battery replacement may have damaged the circuit or the keys.

Batteries, covers, and buttons are all included.

The unlock button isn’t always reliable.

Open the trunk or press the panic button.

You’ll need a new unlock button if they do.

A faulty key fob may cause no controls to work.

Have issues with your Honda CRV key fob after a battery change?

Here’s how to fix it.

Possible tampering with the circuit It’s best to use the remote with care and gentleness.

Wear a glove to protect your hands from the gadgets.

Careless handling could easily crack the casing.

The owner’s handbook should be strictly followed.

Deviating from the right technique may damage the case, connections, or even the circuits.

3. Defective Transmitter

The key fob is based on the fundamental communication principle of sending and receiving signals between two components.

For us, it’s a simple case of a remote and receiver.

Only through exchanging signals can the pairing be made to work.

Locking and unlocking a door, starting a car, and so on are all done through this interaction.

The key fob will not work if either of the two components is damaged because the communication channel is broken.

The transmitter’s performance can be adversely affected by faulty connections or other internal issues.

If something happens to the receiver, the same thing happens.

You may wish to avoid touching the key fob if this is the case.

Make an appointment with the locksmith, mechanic, or dealership if you’re willing to fork up the cash.

4. Installation Errors

Make sure you’ve placed the battery correctly.

You can find all the information you need about battery replacement in the owner’s manual.

Before installing the battery, did you make sure it was oriented correctly?

When it comes to batteries, the positive and negative sides are both indicated.

It’s customary for the positive side to face down, however, this can be changed.

5. Incorrect Battery Type

Before replacing your battery, examine your owner’s manual.

It tells you exactly how to replace the battery and what kind you’ll need to buy.

Key fobs that have improper voltage can cause them to malfunction, making them inoperable.

Also, don’t try to push the battery in to make it fit; this can harm the terminals.

6. Contacts Broken

As a result of their frequent use, key fobs are subjected to a great deal of wear and tear.

Breaks in wires and circuit boards, as well as button malfunctions, result from this kind of abuse.

Carefully open and inspect the key fob controls and contacts.

If there are any missing or loose connections, you can try soldering them back together.

Don’t do this unless you’ve got some experience with circuit boards.

Assuming everything is in working order, perform a visual inspection of the buttons.

They may need to be pushed back into place on occasion.

Do I Have To Reprogram My Fob After Battery Replacement?

Is it necessary to re-program my key fob after changing the battery?

In the event of a legitimate key fob, this is not always the case.

Aftermarket components, on the other hand, are a gamble.

If you have a Honda key fob, you can easily reset it yourself.

Bad news: reprogramming a remote in a new automobile requires specialized software and equipment.

Key fobs can be programmed using the information provided here.

red gdf32f0f9a 1920
  1. Gather all of your Honda’s key fobs. Despite what you’re doing, the automobile will forget the rest.
  2. Lock the doors and windows of your vehicle.
  3. Activate the ignition but not the key.
  4. Simply hold down the lock button on your key fob for one brief second inside the first five seconds.
  5. Activate the switch by turning it off.
  6. Take a few seconds to repeat steps 3, 4, and 5 a second time.
  7. Steps 3 and 4 should be repeated on the fourth and final try, but not 5. When you have successfully reset the key fob, you should hear a sound similar to that of the door locking.
  8. Once you push the lock button on the supplementary remote, you have roughly five seconds to unlock it.
  9. Get out of the car to check all of your remote controls.
  10. All of your remote controls have been successfully reconfigured.
  11. Are Honda Key Fob Replacements Pricey?
  12. For a Honda, the price of a new key fob is expected to be in the $300-$450 range.
  13. A car’s model, year, and make all have an impact. However, a replacement key is less expensive. For a case, you should expect to pay around $30.


An ordinary person may easily replace a car’s battery.

Aftermarket key fobs in particular might cause the issue of the key fob being reset.

For older Honda vehicles, you can reprogram the key fob yourself, but for later models, you’ll need a professional.

Even though this may be the most common explanation, it is not the only one.

There may be several reasons why you need to call a locksmith or a dealership.

Key fobs can, however, be opened again for repairs if the user knows how.


Jeffrey Bryce is an experienced motorcycle rider with years of experience caring for motorcycles. His natural fondness for motorcycles have made him come up with, which is dedicated to answering and teaching you how to care for your bike with the care it requires. LetsGoForARide is the one of his important lifework in reaching out to communities of motorcycle enthusiasts on how to take care of their bike and choosing the correct spare part.