Remote Key Fob Repair

Modern vehicles are equipped with a remote control that can be used to lock, unlock and start the vehicle. However, like any piece of high-tech equipment it isn't without problems.

Usually, they are easy to resolve. It's as simple as resetting it, which you should be able accomplish by following the resetting guidelines in the owner's manual.

Check the Battery

The remote control is powered by the battery that is in the key fob. The battery is a tiny piece of equipment that has to be replaced on a regular basis to maintain the function of the device. There are a variety of reasons your key fob might not be functioning, aside from the battery. Damage to the physical, exposure to water or internal component failure could be the reason. If your key fob's battery has stopped functioning then replace the battery.

First, ensure that you have the right size battery. The majority of modern key fobs are powered by a CR2032 three-volt battery that is readily available in many stores. The size of many of these batteries is stamped on the edges of the key fob. You can find the type of battery your vehicle requires by searching for the brand name.

Open your key fob carefully and remove the current battery. Photograph the inside of the fob before you do this to ensure you put everything back together correctly. This simple step could save you from having to purchase a replacement fob because you made an error when putting it back together.

Some key fobs also have an electronic backup key, also known as an emergency blade. This is found inside the key fob and allows you to open your car's driver's side door in the event that your remote control doesn't work. In order to access the key blade, you need to locate the notch in the center of the fob. The notch is typically a circular shape that is concealed by the fob's plastic casing.

If you want to be extra cautious, you can make use of a multimeter to test the voltage of the battery. Most modern key fobs come with a voltmeter built into their casings. However, you can also get a multimeter for a couple of dollars at many hardware stores. In general, the battery should be reading 3.0 volts or more. If it reads lower than that, it could indicate that the battery is in its last days and requires replacement immediately.

Check the Buttons

They may look like sophisticated, luxurious convenience items however, keys for cars aren't indestructible. These remote devices can stop functioning after a certain period of time, particularly when they are frequently used or have been subjected to physical abuse. In most cases, it's easy to diagnose the issue and fix it by using the remote fob. Usually, all that is needed is an upgrade to the battery.

Modern car key fobs have several buttons that can perform various functions. For instance they can unlock and lock the doors and activate the panic button, and even open the trunk. When a button on the fob is pressed, it sends a radio code to a receiver inside the vehicle. Some fobs also have a button that can start the engine, which is especially useful in cold winter mornings and hot summer days.

The buttons on a key fob reset by snapping it apart and checking whether they're not damaged or stuck. The battery connector terminals on a key fob may become loose in time, even though they aren't designed to be disassembled. Soldering can be used to reconnect the button contacts to the circuit board if they have been disconnected. This will allow the fob to function again.


Additionally, if a fob has been dropped or damaged in some other way, the buttons may be broken or out of alignment, or misaligned in any way. These issues are more difficult to fix by yourself. However an auto repair shop in your area can fix them with the right tools and experience.

It's always a good idea to keep a spare fob somewhere in the event that one you regularly use stops working. This can help keep you from being left without your keys or having to pay a large amount of money to have the vehicle towed back to the dealer. You should also look over your insurance policy on your car or membership in a car club or extended warranty coverage to determine if it covers the cost of programming or replacing an entirely new fob.

Check the Casing

It's not unusual for keys to get wet, whether from a pool, storm or even your washing machine. The resultant moisture can cause destruction on the electronics inside, leading to many malfunctions. It's a good idea to be aware that you can save a key fob from dying by following a few simple steps and drying it thoroughly.

First, verify that the buttons still work correctly. This usually involves removing the buttons, cleaning them and rebuilding them. If the buttons don't click back in or feel stuck, it's time to replace the remote.

Examine the case to make sure that there is nothing blocking the operation of the key fob. Utilize tweezers to remove the case and take out the battery, however, do not remove the circuit board or antennas. If you disrupt the circuits that keep your key fob programmed you'll need to visit an Interstate All Battery Center or dealer to reprogram it.

After you've replaced and removed the battery it's a good idea to dry out the fob by putting it in a plastic bag containing silica gel packs or other desiccating agent. This will avoid future moisture problems and will make your key fob more durable.

If the fob does not work, you should visit a dealership or an independent shop that is specialized in the make and model of your vehicle. They will be able to reprogram the key fob for your vehicle and hopefully return it to full functionality.

If all else fails, an alternative key fob from NAPA can be purchased online or at your local NAPA Auto Parts store. company website do-it-yourself remotes are similar to the original fob, but are cheaper. They are easily paired to your vehicle by following simple instructions. NAPA provides a variety of do-it-yourself replacements that you can re-program within a matter of minutes.

Check the Connections

Your key fob might stop working even though it is still programmed for your car. This could be due various reasons, such as broken battery terminal buttons or contacts. If this is the case, you might be able to fix it yourself by performing some basic maintenance.

The first thing you need to ensure is that your backup remote is able to lock and unlock the doors of your car. If it can't, you may have issues with your primary remote. If you're still having trouble doing it, try replacing the batteries in the backup remote.

Before you replace the battery it's recommended to take off the key fob and perform a visual inspection of the circuit board. Make sure there are no cracked solder joints. Once you're done replacing the battery in your key fob and reassemble it.

Once you've replaced the battery and reassembled the key fob, it's time to test the connection with your vehicle. This can be done by inserting a small flathead screwdriver into the notch at the bottom of your key fob. From there, you'll be able to take apart the two halves of your key fob, and gently remove the circuit board. Install a brand new CR2032 3V battery with the negative end facing down. After you have reinserted the board and reassembled your key fob.

If this doesn't solve the problem, you may have a larger problem. In this situation you'll need to call your dealer or an independent repair shop that specializes in the make of the car you own. They can determine the problem with a radio-frequency analyzer, a device which determines if your key fob transmits an electronic signal to the car's computer.

This guide will be helpful to anyone having problems with their car key fob. If you have any other questions or concerns, don't hesitate to reach us for assistance. We'll be delighted to help you get back on the road in Deptford or Cherry Hill!