Remote Key Fob Repair
Modern vehicles are equipped with remote controls that can be used to lock, unlock, and start the vehicle. However, like any piece of modern technology it is not without its own problems.
These are usually very easy to fix. It's as simple as resetting it and you should be able to accomplish by following the resetting instructions in the owner's manual.
Check the Battery
The battery of a key fob powers the remote control function. It's a small, inexpensive part that should be replaced regularly to ensure that the fob's function is maintained. But, aside from the battery, there are other reasons your fob isn't working. This could be due to physical damage, exposure to water or internal component failure. Whatever the reason when your key fob's sensor is not responding and is not responding, it's time for a replacement battery.
First, make sure you have the correct size battery. Nearly all modern key fobs are powered by the CR2032 CR2032 battery, which is a standard three-volt unit which is readily available in many stores. The size of many of these batteries is stamped on the edges of the key fob. A quick search for the name of your vehicle's brand should help you find the exact kind of battery that it uses.
Take your key fob apart carefully and remove the existing battery. Take a picture of the inside of the fob prior to you do this to ensure that you put it back together in the correct way. This simple step will save you from purchasing another fob if you made a mistake when making it back together.
Certain key fobs also come with a mechanical backup key called an emergency blade. This is located within the key fob and permits you to access your car's driver's door in the event that your remote control fails to function. In order to access the key blade, you need to locate the notch that's in the center of your fob. The notch is usually an oval shape that is hidden by the fob's plastic casing.
If you want to check the battery voltage with extra care, you can use a multimeter. The majority of modern key fobs have an voltmeter in their casings. However, you can also get a multimeter for just a few dollars at most hardware stores. Generally, the battery should be reading 3.0 volts or greater. If it reads lower than that, it could mean that the battery is in its last days and requires replacement immediately.
Check the Buttons
They may appear to be sophisticated, luxurious convenience items however, car key fobs aren't durable. Remotes can stop functioning after a certain period of time, particularly when they are frequently used or if they were subjected to physical abuse. Fortunately, the majority of times it's easy to identify and fix the issue with a remote key fob, and changing the battery is often all that's required.
Modern car key fobs include numerous buttons that serve different functions. For example they can unlock and lock the doors and activate the panic button and open the trunk. When a button is pressed, the fob sends an audio signal using an identification code that can be recognized by a receiver inside the car. Some fobs also include a button to start the engine, which is especially useful during cold winter mornings or hot summer days.
Typically, the buttons of the key fob can be reset by taking the device apart and ensuring they aren't broken or stuck. The battery connector terminals of the key fob can be loose over time, despite the fact that they aren't intended to be disassembled. Soldering can be used to connect the button contacts to the circuit board if they have been disconnected. This will allow the fob to function again.
In addition, if the fob has been damaged or dropped in any other way, the buttons might be damaged, out of alignment or misaligned. These kinds of issues are usually more difficult to solve on your own, however, they can be fixed by a local auto shop with the proper tools and experience.
Keep an extra key fob in a safe location, just in case the one you use is not working as often. This can help to avoid being stuck without your keys or needing to pay a significant amount of money to have the vehicle towing back to the dealer. Check your car insurance, car club membership, or extended warranty coverage for the cost of replacing a replacement key fob.

Check the Casing
It's not unusual for a keyfob's cap to get wet. This can happen from an in-ground pool, a downpour or even from your washing machine. The resultant moisture can cause havoc with the electronic components inside, causing many malfunctions. It's good to be aware that you can save a key fob from dying by following a few simple steps and thoroughly drying it.
First, check whether the buttons are working correctly. This usually means removing and cleaning the buttons. If the buttons aren't functioning or come in, it might be the time to replace your remote.
You should also check the case to ensure there is nothing that could be affecting the operation of the key fob. Utilize tweezers to remove the case and remove the battery, but do not disassemble 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 have to go to a dealer or choose an Interstate All Battery Center location to re-program it.
After you have removed and replaced your battery, it's an ideal idea to dry the key fob out by placing it into an airtight bag that contains silica gel packets. This will prevent future issues with moisture and will help the battery last longer.
If the fob doesn't work, you can go to a dealership, or an independent shop that is specialized in the model and make of your vehicle. They can reprogramme the key fob of your particular vehicle and hopefully restore it to full functionality.
If all else fails, a replacement key fob from NAPA can be purchased through the internet or at your local NAPA Auto Parts store. These do-it-yourself-operated remotes look as the factory key fob but are much more affordable and can be easily connected with your vehicle by following simple instructions. If you want to skip the expense and hassle of a visit to a dealer, NAPA offers several do-it-yourself replacements that can be reprogrammed within a matter of minutes at home.
Check the Connections
The key fob you have may cease to function even though it's programmed for your vehicle. It could be due to a number of factors such as damaged contacts on the battery or buttons. It is possible to solve the issue yourself by performing a simple maintenance.
You should first confirm whether your backup remote is able to lock and unlock the doors of your car. If it does, then you may have an issue with your primary remote. If not, then it's time to replace the battery in your backup remote.
Before you replace the battery, it's an excellent idea to take off the key fob and do an inspection of the circuit board. Make sure there are no cracked solder joints. When you're done, you can replace the battery and reassemble the key fob.
Once you've replaced the battery and reassembled the key fob, you're now ready to test out its connection to your vehicle. Put repair car keys into the notch at the bottom of the key fob. You can then pry apart the two halves of your key fob and gently remove the circuitboard. Be careful when inserting a new CR 2032 3V battery, ensuring that it's inserted with the negative side facing downwards. Once you've reinserted the circuit board, reassemble the key fob and try again.
If this doesn't work, you have a bigger issue. In this instance, you should call your dealer or a repair shop that is specifically geared to your car's make. They can diagnose the issue using a radio-frequency tester, an instrument that determines if your key fob transmits signals to the computer in your car.
This guide should be helpful to anyone having problems with their car key fob. If you have any other questions or issues, don't hesitate reach us for assistance. We'll be delighted to assist you in getting back on the road in Deptford or Cherry Hill!