Nora Normanby

Car Key Fob Repair - How to Get Back on the Road Even If Your Keyless Entry isn't Working

Over time, key fobs can experience problems such as losing functionality. While some issues may require professional attention, many are fixable at home.

The first step is generally to change the battery. The majority of fobs are powered by flat watch-style battery, which can be easily found at hardware stores or auto parts stores.

Dead Battery

It can be an incredibly inconvenience when the battery of a key fob dies. This is especially the case when you are far from home. There are ways to get back on the road when your car's keyless entry doesn't work.

The first thing you should check is to see if the buttons on the key fob still work. If they aren't then the issue could be with the locks on your car.

If the keys won't unlock you need to look for a mechanical key slot hidden in your door handle trim or on another part of the car (consult your owner's manual). Insert the mechanical key and try again. If this fails there are some cars that have an app that can open doors remotely. FordPass Connect, myChevrolet Mobile App and myMazda apps, for example let owners unlock their doors using smartphones. However, these apps are subject to an annual cost.

It is also important to ensure that your key fob isn't draining the car's battery by resting on it. A dead fob will drain your battery quickly especially if it's used to control your phone or TV while you are watching.

Holding the key fob repair near me fob right up to your car's start button can sometimes start an ignition key fob with a low battery. This simple fix can save you from having to visit your dealer or Interstate All Battery Centers.

If your key fob does not work try testing it in a vehicle that has an ignition button. If it fails, the fob battery probably needs replacement. It's a great idea to keep an extra key fob in your purse or backpack.

Damaged Buttons

If your key fob is unable to unlock doors or start the car remotely, it's likely that one or more of its buttons have been damaged. Your key fob contains an electronic circuit that has "contact pads" which are covered by an electrically conductive film. This film wears off over time. This wear could cause your fob to respond less or not at all.

The good news is that the pad in the car key fob is easy to replace, and it can be done by using a simple flathead screwdriver. If the case is damaged or badly smashed it may be difficult to open. You'll have to take it to an auto repair shop to get the fob repaired.

It's not common for a key fob being dropped, trampled, or exposed water. All of these incidents can result in physical damage, like breaking and snapping keys.

This could also cause internal damage to the fob and result in an issue. It's a good idea so, always keep an extra fob in your wallet or pocket in the event that the one you're using breaks.

If the buttons on your key fob aren't working in the way they should, you should first verify that the battery is in good condition. Key fobs don't require any special electronic device. They utilize the same battery for two dollars that is used in hearing aids and Fully Comprehensive watches. They are sold at hardware, drug, and online stores.

If the battery is in good condition it's likely that the buttons are worn down or dirty and can be cleaned using a moist cloth to wipe them down. If the buttons don't work, you can test another car key fob. This will help you determine whether the issue is yours or a particular model. If the other key fob is working, then yours might need to be reset or replaced.

Reprogramming

The hidden world of car key fobs is more intricate than what some myths would suggest. The basic fobs function by using unique radio frequency signals that are assigned to specific vehicles. The fobs must be programmed correctly in order to unlock and start the vehicle. Unfortunately it's not as easy as pressing a few buttons and with only a few exceptions it needs to be handled by the dealer.

Check the owner's manual for more detailed instructions. Some manufacturers, such as Mercedes, use proprietary technology that makes sure only dealerships can design 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 choosing the right shop.

Some car models will erase other fobs when they're programmed, meaning you'll need to get any additional fobs programmed professionally. This is an expensive proposition particularly if you're down to one functioning fob. It is always advisable to have at least one spare mechanical key you can use to open the trunk and doors even if it's not able to start the car.

If you attempt to reprogram your fob yourself be prepared for a difficult journey. There are countless guides on the internet that promise success but you're likely to be disappointed. A lot of these guides were written by people with no prior experience in this field and often are founded on unsubstantiated claims. Some of these guides claim that you can program your car's key fob with just the click of a button. This is false.

Most key fobs are secured by a plastic clip that's easy to loosen, but the battery is inside the circuit board, and you'll have to carefully pry it out using a device. Once you've gotten inside, you'll be able locate the button cell battery, which is usually a small watch battery that is available at most pharmacies or at home improvement stores. It's usually easy to replace the battery. Before replacing the entire unit, it's worth trying first.

Replacement

There are many ways to fix a broken or malfunctioning car key fob. A quick fix can be as easy as replacing the battery or changing the program on the key fob, but a more thorough repair may be needed. It's also beneficial to keep a spare fob in the event that one is lost or stolen.

Modern key fobs are more expensive and more difficult to replace because they contain the physical key and electronic. Certain "smart" fobs also come with a remote starter. It's important to know that it could take up to an hour to cut and program a replacement fob for your vehicle.

Fobs make use of a tiny radio transmitter mounted on circuit boards to communicate with the emergency car key repair's receiver. Pressing the button triggers the transmitter, and it transmits an RF signal that is unique to the car's receiver. The receiver recognizes the signal and validates it against preprogrammed codes. This allows the driver to unlock the car key repair shop near me and begin it from a distance without putting the key in the ignition or turning a lock.

If your fob's buttons aren't working or responding intermittently, they could be damaged by water. You could be able to repair the fob by disassembling it and examining it for broken or unresponsive buttons. If this doesn't resolve the issue, try reprogramming or buying an entirely new fob.

Before buying a replacement key fob on the internet, seek out an expert locksmith or your local dealer to ensure that it's compatible with the security system of your vehicle. There are a variety of aftermarket key fobs available cheaper, but it's essential to look up the brands and read reviews before attempting to program them. While certain fobs can be repaired by a reputable locksmith others require special programming equipment that can only be used by a vehicle dealer or auto technician.