Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working
Key fobs can have issues with time, like the loss of functionality. Some issues may need professional attention, but many can be resolved at home.
The first step is usually to replace the battery. Most fobs utilize flat watch-style batteries that are readily available in hardware stores or auto parts stores.
Dead Battery
When a key fob battery dies, it can be a huge inconvenience, especially if you're away from home. Fortunately, there are ways to get back on the road even if your car's keyless entry isn't working.
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 may be with your car's locks instead of the fob.
If the keys aren't unlocking try looking for a key slot with a mechanical lock located in the trim of your door handle or on another part of the vehicle (consult your owner's manual). Insert the mechanical key and try again. If this doesn't unlock the door, some cars come with an app that allows you to unlock it remotely. For instance the FordPass Connect app, myChevrolet mobile app and myMazda app permit owners to open their doors with their smartphones. However, these apps have a monthly fee.
It is also important to ensure that your key fob does not take the car's battery away by being plugged into them. A dead key fob can drain your battery quickly, especially if it is used to control the TV or phone while you're watching.
A key fob that's low on battery may be activated by holding it up to the start button. It's a quick fix that will save you going to the dealer or even select Interstate All Battery Center locations.
If your key fob does not work try testing it in a vehicle with an electronic starter button. If it doesn't, it could be necessary to replace the battery in your fob. key repair service is why it's a good idea keep an extra key fob in the bag or purse.
Damaged Buttons
It's possible that your key fob is damaged and has a button. remote key fob repair near me is likely to have an electronic circuit board that has "contact pads" for each button, and these tiny pads are covered with an electrically conducting film which wears down over time. This wear can cause your fob to respond slower, or not respond at all.
The contact pad on the car keyfob is easily replaced using an flathead screwdriver. If the case is damaged or badly damaged it will be difficult to open. You'll need to take it to an auto shop to have the fob repaired.
It's not unusual for a key fob to be dropped on hard surfaces, trodden on or exposed to water. All of these incidents can cause physical damage, such as breaking the keys and snapping them.
It can also cause internal damage to the fob, which could cause an issue. This is why it's recommended to keep a spare key fob in your pocket or wallet in case you damage the one you own.
Examine the battery first to determine if your key fob buttons aren't working like they should. Key fobs do not require an electronic device. They use 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 in good condition, the buttons may be dirty or worn out. You can easily clean them using a damp cloth. If the buttons still don't work, you could try another car key fob. This will help determine if the problem is yours or a particular model. If the other fob functions then it's likely your key fob has to be reprogrammed or even replaced completely.
Reprogramming
The world of fobs for car keys is more complex than many myths suggest. Basic fobs function using radio frequency signals that are unique to each car. The fobs must be programmed correctly in order to be able to unlock and start the vehicle. Unfortunately the process of reprogramming a fob isn't as simple as pressing a few buttons, and with very few exceptions it needs to be handled by a dealer.
The procedure for reprogramming the fob is based on the model and model year of the car you own It is therefore essential to refer to the owner's manual for step-by-step instructions. Some manufacturers, such as Mercedes, use proprietary technology that ensures only dealers can create the new fob and sync it to your vehicle. Some independent shops may also offer this service, so be sure to read reviews and prices before selecting the right shop.
Some car models will wipe out all other fobs after they've been programmed, meaning you'll have to have any additional fobs professionally programmed. This can be costly, especially if you're down to just one working fob. It's always recommended to have at minimum a backup mechanical key that you can use to unlock the trunk and doors, even if it won't start the car.
If you decide to attempt to reprogram your fob on your own be prepared for a gruelling 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 claims. Some of them even claim that you can program your own car key fob with just a few clicks, which can be very confusing.
The battery is usually held in place with clips made of plastic, which can be removed easily. However the circuit board houses the battery, and you will need to carefully pry the battery out using the aid of a tool. Once you've gotten inside, you'll be able to find the button cell battery, which is typically a small watch battery that can be found at a variety of pharmacies or at home improvement stores. It's generally easy to replace the battery. Before replacing the whole unit, it's worth trying first.
Replacement
If the car key fob is damaged or fails to function it is important to know that there are several ways to fix the issue. A quick fix can be as simple as replacing the battery or programming the key fob but a more thorough repair may be required. It can also be helpful to keep a spare fob in the event that one is lost or stolen.
Modern key fobs are more expensive and harder to replace because they contain an actual key as well as the electronic. Some "smart" fobs come with a remote starter. Therefore, it's important to be aware that it can take up to an hour to get an alternative key fob cut and programmed to your vehicle.
Fobs utilize a small radio transmitter on a circuit board to communicate with the car's receiver. Pressing a button activates the transmitter, which sends an RF signal unique to the car's receiver. The receiver recognizes the signal and checks it against the preprogrammed codes. This allows drivers to start the vehicle from a distance without having to put the ignition key in.
If your key fob buttons are not responding or working intermittently, they may be damaged by water. It is possible to fix the fob by removing it and looking for any damaged or unresponsive buttons. If this doesn't resolve the issue, try reprogramming or buying an entirely new fob.
Before you purchase a replacement fob online, seek out a professional locksmith or your local dealer to ensure that it's 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 prior to trying to program them yourself. While some fobs can be replaced by a trusted locksmith, other models require special equipment to program them that can only be used by a professional auto dealer or auto technician.