Why We Do We Love Key Fob Repair (And You Should Also!)

· 6 min read
Why We Do We Love Key Fob Repair (And You Should Also!)

Remote Key Fob Repair

Modern vehicles come with remote controls that can be used to lock, unlock, and start the vehicle. As with any high-tech piece equipment, there can be issues.

Usually, they are easy to resolve. You can reset it by following the steps in the owner's manual.

Check the Battery

The battery in the key fob powers the remote control function. It's a small, inexpensive component that needs to be replaced regularly to ensure the fob's functionality. But, aside from the battery, there could be other reasons why your key fob might not be functioning properly. This could be due to physical damage, water exposure or internal component failure. Whatever the reason when your key fob is unresponsive and is not responding, it's time to replace the battery.

Be sure to have the right size battery. Most modern key fobs are powered by a three-volt CR2032 which is easily found in a wide range of stores. The majority of these batteries are stamped with the size on one of the edges of the fob. A quick search for the name of your car's brand should help you locate the specific type of battery it takes.

The fob must be opened carefully and remove the existing battery. Take a photo of the inside of the fob prior to you do so to ensure you put everything back together in the correct way. This simple action can help you avoid having to purchase a replacement fob because you made an error when putting it back together.

You should also be aware that certain key fobs come with a backup mechanical key, also known as an emergency blade. This is found inside the key fob and allows you to access your car's driver's door in case the remote control fails to function. In order to access the key blade, you have to locate the notch that's in the center of the fob. The notch is usually an oval shape that is hidden by the plastic casing of the fob.

If you'd like to be extra vigilant you can use a multimeter to check the voltage of the battery. Most modern key fobs have a voltmeter built into their casings, but you can also purchase an extra multimeter for a couple of dollars at many hardware stores. Generally speaking, the battery should be reading 3.0 volts or greater. A reading lower than that could indicate that the battery is in its last days and should be replaced immediately.

Check the Buttons

They might look like sophisticated, luxurious convenience items but car key fobs aren't durable. They can cease functioning after a certain period of time, particularly when they are used frequently or if they were subjected to physical abuse. Most of the time it is easy to identify the issue and fix it with the remote fob. In most cases all that's required is an upgrade to the battery.

Many modern-day car keys have multiple buttons for different functions like locking and unlocking doors, activating the panic button, and opening the trunk. When you press a button the fob transmits an audio signal using a code that is recognized by a receiver inside the car. Certain fobs come with a button to start the car, which is useful in cold winter mornings and hot summer days.

The buttons on a key fob reset by taking it apart and checking whether they're not damaged or stuck. The battery connector terminals of the key fob can become loose over time, despite the fact that they are not designed to be removed. Soldering can be used to reconnect the button contacts to the circuit board if they have been disconnected. This will bring back the fob's functionality.

If a fob gets damaged or dropped, the buttons may be damaged, misaligned, or out of alignment. These kinds of issues are generally more difficult to repair on your own however, they can be fixed by a local auto shop with the right equipment and experience.

Keep an extra key fob in an area that is secure in the event that the one you are using frequently stops working.  key car repair  can avoid being stranded in the in the middle of nowhere with no keys, or paying for a large amount to have your car taken to the dealer. You should also look over your car insurance policy or membership in a car club or extended warranty coverage to see if it will cover the cost of programming or replacing an entirely new fob.

Check the Casing

It's not uncommon for keys to get submerged, whether from a pool, rainstorm, or even your washing machine. The moisture that is resulting can trigger a myriad of malfunctions within the electronic. The good news is that a key fob can often be kept from the brink of death by thoroughly drying it out and following a few easy steps.



First, check whether the buttons are working properly. This usually involves removing the buttons, cleaning them and rebuilding them. If the buttons are stuck or don't pop in, it may be time to replace your remote.

Examine the case to make sure that there is nothing blocking the operation of the key fob. Use tweezers or pliers to open the case and take out the battery, however, do not remove the circuit board or antennas. These have electric current running through them that keeps the key fob programmed to your vehicle. And should you disrupt these circuits, you'll need go to a dealer or choose an Interstate All Battery Center location to reprogram it.

After you have replaced and removed the battery, it's recommended to dry the key fob by placing it into an airtight bag that contains silica gel packets. This will avoid future problems with moisture and will make your key fob more robust.

If the fob still doesn't work, you can go to a dealership or an independent shop that specializes in the make and model of your vehicle. They will be able to reprogram the fob's key to your vehicle and hopefully restore the function to its original state.

If all else fails, a replacement key fob from NAPA can be purchased on the internet or at a local NAPA Auto Parts store. These do-it yourself remotes are similar to the factory key fob, but cheaper. They are easily paired to your vehicle using simple instructions. NAPA offers a variety of do-it-yourself replacements that you can re-program within a matter of minutes.

Check the Connections

Occasionally your key fob might cease to function - even though it's still programmed to your vehicle. This could be caused by various reasons such as broken contacts on the battery or buttons. If this is the case, you may be capable of fixing it yourself by carrying out some basic maintenance.

The first thing you have to do is ensure that your backup remote is able to lock and unlock the doors of your car. If it can't, you may have a problem with your main remote. If you are still unable to do it, you can try replacing the batteries in the backup remote.

It's a good idea to disassemble your key fob prior to replacing the battery and examining the circuit board. Make sure there are no cracks in the solder joints. Once you're done with that, you can replace the battery and put back together the key fob.

Once you've replaced your battery and reassembled your key fob, you're now ready to test out its connection to your vehicle. Use a flathead screwdriver into the notch at the bottom of the key fob. You can then break the two halves of your key fob and then gently remove the circuit board. Insert a new CR2032 3V battery with the negative end facing down. After you have reinserted your board and reassembled your key fob.

If this doesn't work, then there is a bigger problem. In this situation, you will have to contact your dealer or an independent repair shop that is specialized in the make of the car you own. They can identify the issue by using a radio frequency tester that is a device that can determine if your key fob is transmitting a signal to the computer in your car.

This guide should be helpful for anyone who has issues with their vehicle key fob. If you have any other questions or concerns, don't hesitate reach us for assistance. We'll be delighted to assist you getting back on the road in Deptford or Cherry Hill!