The Comprehensive Guide To Key Fob Repair Service

· 6 min read
The Comprehensive Guide To Key Fob Repair Service

Key Fob Repair Service

Key fobs take a beating. Buttons can get stuck or break, depending on how they are stored and how they are jostled.

Luckily, most issues with key fobs are simple to fix. Certain key fob issues are more serious, and require assistance from a professional. This is where locksmiths come in handy.

Dead Fob Battery

Car key fobs are pretty intelligent however, it doesn't mean they can't occasionally get stuck in the "not responding" zone. It's time to replace your battery if this occurs. However, this doesn't always fix the issue, since there could be an issue with one of the battery connector terminals.

The car manufacturers are aware of the possibility of a problem, and they often install an extra mechanical key inside the fob to be used in an emergency. You can access it by finding the small release button or latch that is located behind the fob. (Check the user manual for more details). Pressing this button, you'll be able to open the fob and reveal a key that you can use to open the car.

Another sign that your fob's batteries are dying is the fact that you have to be closer to the car to unlock and open it than before. This is due to the fact that the transmitter of your fob loses its strength when its battery dies which limits its operating range.

It's fairly easy to replace the battery. You'll need a button-cell battery (which looks like an elongated silver coin) and then follow the steps in the user's manual to remove the old battery. Replace the battery in the same direction as the old one (the positive side facing upwards towards the buttons). Test the lock/unlock function, and start functions of the fob after reassembling it. Make sure the new battery is placed correctly.

Some key fobs are difficult to open, but you should be able to open them by finding the latch, switch, or screw at the back of the fob and then tearing it apart. Be careful not to break the fob since you'll require it to connect to your vehicle! If you're not confident in doing this on your own, you can also send your fob to a professional. Most auto shops will swap batteries for fobs for a small fee as it's an often-used repair service. Some dealers might even do it for free depending on the model and brand of your vehicle.

Fob not working

Replace the batteries in your key fob if it does not work. This is the most efficient solution and will most likely fix the issue. If your fob still doesn't work after replacing the battery, it could be due to damage.

Your car key fob can be damaged for a variety of reasons, such as physical trauma or exposure to water or a damaged or corroded board. These problems can prevent your key from sending the signal to the receiver in your vehicle, which will then prevent your car's ignition or doors from locking. You may need to have a professional replace the fob if it's damaged.

key repairs  on your keychain could have worn out with repeated use. The rubber can wear away and make the buttons less springy or 'clicky' and eventually, they'll begin to fail to detect your press accurately. You can try wiping the buttons down and adjusting them, however, it is recommended to get the fob examined by a professional to make more extensive repairs.

Double check that the battery you're using is the right one for your fob. You can find a list on the internet or in most hardware stores. Consult your owner's guide or the engraving on the fob to find out more. If the battery isn't the correct fit it could have problems transmitting strong signals or providing enough power to internal components.

In rare cases it could be a problem related to the vehicle's electronic components or receiver. You can test this by using a physical key to open the door and then trying to start your vehicle using the inductive backup system (if there is). If your physical key does not work or open your car, make sure a mechanic inspect the receiver and electronic components to ensure that they're working correctly.

Fob is damaged

A key fob contains many components that function together and a single malfunction can cause others to fail. If a keyfob stops working it is important to check for obvious causes like a cracked casing or a damaged part. It's also important to check other components of the vehicle such as the lights and horn to determine whether they're working as expected.

If the fob for your key is damaged, you should obtain a replacement from your dealer or an auto locksmith instead of attempting to repair it. The fob may need to be reprogrammed to the vehicle this is something that can't usually be done at home, and it requires special equipment to do so.

Over time the contacts on buttons of a key fob can wear out. This is particularly true if the fob is dropped or left in hot temperatures.

The internal wiring of a key fob may also wear out over time. This can result in the button not working when it's pressed, or only working when press very hard. It can also lead to the car not starting or unlocking when the fob is used.

The majority of fobs have the cover of plastic that can be opened and safely cleaned with water and soap. This can bring a keyfob back to its original function. It's also a good idea to clean it often to prevent dirt from damaging the inside.


A damaged battery is the most common reason why the key fob will not start or function. The majority of car dealers and mechanics can replace the battery quickly. If you're confident in installing the battery yourself and are able to do it yourself, you can purchase the new one from the big-box or a hardware store, and follow the steps on YouTube or in your owner's guide.

The most likely scenario is that the key fob has internal damage, for example cracks in the case, teeny electronic components not completely attached to the circuit board, or corroded or bent contact points for batteries. If you observe any of these issues, you should consult an auto locksmith or a dealer to obtain a new key fob as well as assistance in programming it to your vehicle.

Fob Is Not Programming

The car key fob is an easy way to start your engine and unlock the doors of your vehicle. They can also be a source of frustration when they stop working or seem to work intermittently. In some instances, the issue can be resolved by replacing the battery. However, in other situations it may require a more complex repair. The first step is to identify why the fob isn't functioning correctly.

The most common reason for a fob to malfunction is that it doesn't recognize your vehicle. This can happen when the connection between your remote and the car is damaged. This connection can be reset without the need for expensive key fob repair.

Other problems can arise when the key fob isn't able to sends an energizing signal. This could be the result of a key has been damaged or if the battery is not functioning properly. In either case, you should try to resync the key with your vehicle. This can be accomplished by following the instructions provided with the key fob. It is also recommended to carry a spare car key in case your primary key fails.

It's possible that the fob isn't getting a strong enough signal from the car. This can be caused by a weak car battery or interference from wireless devices, or an antenna problem. You can test the fob to see whether this is the cause by using an external tester. If the tester does not light up when one of the buttons is pressing, the battery may need to be replaced or the fob may be damaged.

Another reason that the fob not sending an adequate signal is that the immobilizer system in your car is blocking it from sending a strong signal. This could be the case in the event that your key fob isn't been properly programmed or there's a software issue.

If you're not able to resolve the issue, or it's not worth the hassle of repairing the fob, you should consider buying a new one. Many online retailers offer low-cost options, and some can be delivered directly to your home.