15 Reasons Not To Overlook Car Key Fob Repair
Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Key fobs can experience problems over time, including an inability to function. Some issues may need professional attention, however many can be resolved at home.
Change the battery is often the first step. Most fobs run on a flat watch-style batteries, which are easily found at hardware stores or auto parts stores.
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When a key fob battery fails, it can be a huge inconvenience, especially if you're away from home. There are ways to get your car back on the road if your keyless entry system isn't working.
One of the first things to examine is to determine if the buttons on the key fob function. If they don't then the issue could be in the car's locks.
If your keys don't work, look for a key slot with a mechanical lock hidden in the trim of your door handle or in another location on the vehicle (consult your owner's manual). Insert the mechanical key and try again. If this doesn't work there are some cars that have an app that allows you to unlock doors remotely. For example the FordPass Connect app, the myChevrolet mobile app, and myMazda app permit owners to open their doors with their smartphones. However, these apps require a monthly cost.
Also, you should ensure that your key fob isn't draining your vehicle's battery by being plugged into it. A dead key fob can drain your battery fast, especially if it is used to control the TV or phone while you're watching.
A key fob that's low on battery can be activated by holding it right up to the start button. This quick fix can save you from a trip to your dealer or to certain Interstate All Battery Centers.
You can also find out if your key fob is actually dead by testing it in another vehicle with push-button ignition. If it doesn't work it's likely that the battery needs replacement. It's a good idea keep an extra key fob in your purse or backpack.
Damaged Buttons
If your key fob is unable to open doors or start the vehicle remotely, it's possible that one or more of its buttons have been damaged. Your key fob likely contains circuit boards with "contact pads" for each button. car key fob repairs are coated with an electricity conducting film that wears down over time. The wear may cause your device to respond slower or not at all.
The pad that contacts car keys can be easily replaced using a flat-head screwdriver. If the case is damaged or badly smashed it may be difficult to open. You'll need to take it to an auto shop to repair the fob.
It's not uncommon for a key fob to be dropped on hard surfaces, walked on or exposed to water. These events can cause physical damage to keys, including bending or snapping them.
This can also cause internal damage to the fob and lead to an issue. It's a good idea, therefore, to always carry a spare fob in your wallet or pocket in case the one you're currently using is damaged.
If the buttons on your key fob aren't responding in the way they should, first verify that the battery is in good condition. Key fobs don't require an electronic device. They utilize the same two-dollar battery that is used in hearing aids and watches. They are sold at drug, hardware, and online stores.
If the battery is fine it's likely that the buttons are dirty or worn down, and can be cleaned using a damp cloth to wipe them down. If they're still not responding, try a different type of key fob to see whether the problem is with yours, or a specific kind of car key fob. If the other key fob is working, then yours may need to be reset or replaced.
Reprogramming
The secret world of car key fobs is much more complicated than the myths suggest. Basic fobs operate with radio frequency signals that are specific to each vehicle. The fobs have to be programmed correctly to be able to unlock and start the car. Unfortunately the process of reprogramming a fob isn't as simple as pressing a few buttons and with only a few exceptions it has to be done by a dealer.
Check the owner's manual for more detailed instructions. Certain manufacturers, like Mercedes utilize proprietary technology that only the dealership is able to create a new key fob and resync it to your vehicle. However certain independent shops offer this service as well and you should look up reviews and prices prior to selecting the right shop.
Some car models will erase other fobs after they've been reprogrammed, which means you'll need to get any additional fobs professionally programmed as well. This can be costly particularly if your fob has stopped working. It's always wise to have at minimum a spare mechanical key that you can use to unlock the trunk and doors even if it's not able to start the car.
If you do attempt to reprogram your fob yourself be prepared for a difficult journey. There are countless guides online that promise to work however, you're likely to be disappointed. Many of these guides were written by individuals with no experience and are based on unsubstantiated statements. Some of these guides claim that you can program your car key fob with just the click of a button. This is misleading.
The majority of key fobs are secured by a plastic clip that's easy to loosen, but the battery is inside the circuit board, so you'll need to carefully pull it out using a device. Once you've gotten inside, you'll be able to find the button cell battery which is usually a small watch battery that can be purchased at a variety of pharmacies or home improvement stores. It's usually easy to replace the battery. Before replacing the whole device, you should try it first.
Replacement
If the car key fob has been damaged or has stopped working, it's important to know that there are several ways to address the issue. It could be possible to fix the problem quickly by replacing the battery or reprogramming your key fob. However it is possible that a more extensive repair may be needed. It's also beneficial to have a spare key fob in case one gets lost or stolen.
Modern key fobs are more expensive and difficult to replace since they have the physical key and electronics. Some "smart fobs" even include a remote starter. Therefore, it's important to know that it could take up to an hour to have a new key fob cut and programmed for your vehicle.
Fobs make use of a tiny radio transmitter that is mounted on circuit boards to communicate with the car's receiver. By pressing a button the transmitter transmits an RF signal specific to the car receiver. The receiver detects and compares the signal to preprogrammed codes. This allows the driver to start the car from a distance without the need to put the key in the ignition.
If your key fob buttons are not responding or working in a sporadic manner, they may be damaged by water. You could be able to fix the fob by taking it apart and examining it for broken or unresponsive buttons. If this doesn't fix the issue, try reprogramming your fob or getting a new one.
It is recommended to consult an auto dealer in your area or a locksmith before buying a replacement keyfob on the internet to make sure it's compatible with the security system of your vehicle. The fobs from the aftermarket can be less expensive however, you must research brands and read reviews prior to attempting to program them yourself. While some fobs can be replaced by a reputable locksmith, others require specialized equipment for programming that can only be used by a professional auto dealer or auto technician.