Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Over time, key fobs could be affected by issues such as malfunction. While some issues may require professional attention, the majority can be fixed at home.
The first step is typically to change the battery. car key remote repair near me utilize flat watch-style batteries that are easy to find at hardware stores or auto parts stores.
Dead Battery
If the battery for a key fob is dead, it could be a major hassle, especially if you're away from home. However, there are options to get back on the road when your car's keyless entry doesn't work.
One of the first things you should be sure of is whether the key fob's buttons still work. If they do, then the issue could be with the car's locks instead of the fob.
If your keys will not unlock, you might find a mechanical slot in the trim around the door handles or in other places in your car (consult the owner's manual). Insert the mechanical key and try again. If this fails certain cars come with an app that allows you to unlock the doors remotely. For example the FordPass Connect app, the myChevrolet mobile app, and myMazda app allow owners to open their doors using their smartphones. These apps do charge a monthly subscription fee.
Also, make sure that your key fob does not drain the batteries of your car by being plugged into them. A dead key fob can drain your battery fast especially if it's used to control the TV or phone while you are watching.
Holding the key fob right to the car's start button may cause an ignition key fob with a low battery. It's a simple solution that could save you a trip to the dealer or to select Interstate All Battery Center locations.
If your key fob does not work try testing it in a vehicle that has an ignition button. If it's not working it's likely that the battery needs replacement. It's a good idea to keep a spare key fob in your backpack or purse.
Damaged Buttons
It's possible that your key fob has a damaged button. Your key fob likely contains an electronic circuit board that has "contact pads" for each button, and these tiny pads are coated with a conductor of electricity which wears down over time. The wear may cause your device to respond slower or not at all.
The contact pad on car keys can be easily replaced using an 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 repair shop to have the fob repaired.
It's not uncommon for a key fob be dropped, trampled on or exposed to water. All of these events can cause physical damage, including bending and snapping the keys.
This can also alter the internals of the fob, which could lead to a malfunction. This is why it's always a good idea to carry a spare key fob inside your purse or pocket in case you accidentally damage the one you own.
Check the battery first If your key fob's buttons aren't working like they should. Key fobs don't require any special electronic device. They utilize the same battery for two dollars that is used in hearing aids and watches. These batteries are available at drug, hardware, and online stores.
If the battery is working it's likely that the buttons are worn down or dirty and can be easily cleaned using a damp cloth to wipe them down. If they're still not responding, you can try a different key fob to see whether the problem is related to yours or with a specific type of car key fob. If the other key fob works it is possible that yours needs to be reprogrammed or replaced.
Reprogramming
The hidden world of car key fobs is much more intricate than what some myths suggest. Basic fobs operate with radio frequency signals that are unique to each car. The fobs have to be programmed to unlock and begin the vehicle. Reprogramming a key fob not as simple as pressing several keys. It is usually handled by the dealer.
Refer to the owner's manual for specific instructions. Some manufacturers, such as Mercedes, use proprietary technology that makes sure only dealers can create an entirely new fob and then sync it with your vehicle. Some independent shops may also offer this service, so check reviews and prices before choosing a shop.
Certain car models erase all other fobs once they're programmed again. This means you'll need to have additional fobs programmed by an expert. This can be expensive, especially if your fob isn't working anymore. Even when the mechanical key doesn't work to start the vehicle, it's a good idea to have a backup that can open the doors and trunk.
Be prepared for a gruelling experience if you opt to reprogram your fob by yourself. You'll be disappointed by numerous online guides that claim to be successful. Many of these guides were written by people with no knowledge of this field and often are based on unsubstantiated claims. Some of them even claim that you can program your own car key fob with just a few clicks, which is extremely confusing.
Most key fobs are held in place by a clip made of plastic which is easy to remove, however, the battery is located inside the circuit board, which means you'll need to carefully pull it out using a tool. Once you've got inside, you should be able locate the button cell battery which is typically a tiny watch battery that can be purchased in most pharmacies or home improvement stores. It's generally easy to replace the battery. Before replacing the whole device, you should try it first.
Replacement
There are several methods to fix a broken or non-functioning car key fob. A quick fix can be as easy as replacing the battery or reprogramming the key fob, but a more thorough repair might be required. A spare fob could be useful in the event one is lost or stolen.
Most modern key fobs include the physical key in addition the electronic component they use, which makes them both more expensive and more complex to replace than traditional keys. Some "smart fobs" even include remote starters. Therefore, it's important to be aware that it can take up to an hour to have a replacement key fob cut and programmed for your vehicle.
Fobs utilize a small radio transmitter that is mounted on a circuit board to communicate with the car's receiver. Pressing a button activates the transmitter, and it transmits an RF signal unique to the car's receiver. The receiver receives the signal and verifies it against preprogrammed codes. This allows the driver to unlock the car and start it from a distance, without placing the key in the ignition or turning a lock.
If the buttons on your key fob do not respond or work sporadically it could mean that they've been damaged by water or other factors. It is possible to repair the fob by taking it apart and look for buttons that are not responsive or broken. If this doesn't fix the issue, try reprogramming the fob, or getting a new one.
It is recommended to consult an auto dealer in your area or a locksmith prior to purchasing a replacement keyfob to ensure it is compatible with the security system of your vehicle. Fobs purchased from a third party can be cheaper but you should research brands and read reviews before attempting to program them yourself. Certain fobs can be modified by an experienced locksmith however, other models require programming equipment that only a technician in the automotive industry or dealer can use.