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Key Fob repair car key Service - 5 Common Reasons Your Key Fob Won't Work

It can be a frustrating experience when your key fob breaks down. Most fob problems can be solved at home by an auto locksmith or are not important.

First, check the key fob to see whether it is suffering from physical damage or a dead battery. Then, you can reset the fob by following the instructions in your owner’s manual.

Dead Key Fob Battery

With a key fob, you can unlock and start your vehicle without having to fiddle around with your keys. Some models even unlock doors, hatchbacks and trunks with the touch of one button. While the battery of your key fob is dead, it may seem like a huge problem, it's actually one of the most simple issues to resolve. You can take your vehicle to an auto repair shop or dealership for assistance. But did you know that you can fix your fob on your own?

First, you'll require a brand-new CR2032. They are available in a multipack from most hardware stores. Then you can use a watch or flathead screwdriver to open the fob case. Once you've opened the first gap then you can use your pry tool to further open the case. It is recommended to be gentle as you don't want to damage the case of the fob, or the circuit board within.

When you've got the case open, insert the battery you just purchased under the tabs that are highlighted by yellow arrows in this photo. Make sure it goes in between the two smaller tabs pointed to by green arrows. Close your key fob after you have installed the new battery and test it. If the key fob still isn't working, you might require the assistance of a professional for a more thorough troubleshooting.

In rare cases replacing the battery on a key fob can still leave you with a nonfunctional device. If this happens, it's likely that there's a problem with your device or the vehicle itself. Keep a spare keyfob handy to be prepared in the event that the battery fails, or if another problem occurs.

In addition to battery replacement, you can ask an expert to inspect and perform other repairs to your key fob. They can look for damaged buttons as well as contacts and other components. They can also do reprogramming or synchronization, when your vehicle is experiencing issues communicating with your keyfob.

Damaged Key Fob Battery

The majority of key fobs utilize small batteries to power their internal components, such as buttons that activate the antenna and chip to release the radio frequency. The battery also powers the plastic casing that protects these components. If the battery fails, your key fob won't work. The solution is easy and affordable: replace the battery. In the owner's manual of their product, many manufacturers provide instructions on how to replace key fob batteries. The process isn't easy however it's not hard to do and you'll probably save money by doing it yourself, rather than taking the fob to a dealership or auto shop.

You could have a different issue if the key fob still does not work after replacing the batteries. Check the key fob to determine whether there are any physical damage, like cracks or dents. You can also examine the circuit board by opening the case. If you're at ease, use a cotton ball dipped into rubbing alcohol to clean contact points on the circuit board of the key fob. This will remove the corrosion without causing damage to the fob.

The key fobs also need to be programmed so that they can connect to the vehicle receiver. This is to ensure that only those with keys for the same vehicle key repairs are able to unlock the car, and to prevent other key fobs from trying to access vehicles they were not designed for. If you recently had your key fob repaired or replaced, or in the event that it hasn't been used for some time the receiver and transmitter could have been disconnected.

You can test this using a spare remote that you own. This will let you know whether the issue is related to the key fob or the electrical system of your vehicle. A mechanic in your car can help you reconnect any disconnected wires and help you resolve the problem. Alternatively, you can try to connect the key fob to a different receiver in your vehicle and see if that solves the problem. If you're not able to do this, you might need to take your key fob into a car dealer or auto repair shop for more extensive repairs.

Key Fob Transmitter Damaged

If your car's key fob stops working, it can be a major issue. Fortunately, the majority of car key fobs can be repaired with only a few steps. Examine the fob to determine whether it's suffering from physical damage, and ensure that it's not dead. A new battery might be all you need however, if it fails to fix the issue, there could be a larger issue with the fob transmitter.

It's not a surprise that car key fobs wear out with time. They have many moving parts. A damaged transmitter on your fob can prevent your vehicle from starting or from unlocking the doors. A damaged transmitter may also affect radio signals transmitted from your key fob to the receiver inside the car. Bring your key fob to a technician to be repaired and inspected when you believe that the transmitter is damaged.

One of the most common reasons why a key fob stops functioning is because the batteries are dead. Key fob batteries typically last between three and five years, which is why it's a good idea purchase fresh batteries regularly.

Replacing a key fob's battery is a simple task that most people can do at home. You will need a flat-head screwdriver to pry the case open. Once you have it opened, you'll be able replace the battery. Most key fobs are powered by 3V button cells, which can be found in a majority of auto parts stores.

A damaged receiver may be the reason for your key fob not responding. This can be a frustrating issue, since it typically occurs when you're driving. If you find that your key fob isn't getting an alert from your vehicle, try placing it in the door of the driver's lock.

A damaged receiver may cause your key fob to act erratically, such as by turning off or locking the vehicle whenever you press one of its buttons. If you have a spare key fob, test it to see if it can respond to the vehicle's commands. If you don't have an additional key fob, you can call your dealer for service. In some instances the new-car dealership might be able to provide a replacement for free if your current fob is under warranty.

Damaged key fob receiver

Key fobs may have several issues. They are useful tools that let us lock or unlock, as well as start our cars. If your remote key fob in your car isn't functioning properly it's possible to call a locksmith or an auto dealer. A lot of common issues with keys can be fixed without the need to purchase an expensive replacement. Here are five of the most frequent reasons your key fob may not be working:

Key Fob Needs Re-Programming

Over time, a car's key fob receiver and transmitter may become out of sync with one other. To fix this problem, you will need to re-sync the key fob with its receiver by following instructions for reprogramming your car key remote repair. These instructions are found in your owner's manual or you can ask your local dealer to help you.

If re-programming your key fob doesn't solve the issue, there may be other issues or interference to your key fob, or its receiver. Luckily, this is often easy to repair by opening your key fob to take a closer view of the inside. Find indications of damage such as cracks in the circuit board, teeny electronic components that aren't fully attached to the circuit board or bent or the battery contacts are oxidized. If you find any of these, you can fix your key fob by replacing damaged parts.

The best solution for you depends on your budget and convenience. If your key fob is damaged or has been dropped, it could be more affordable to replace it professionally. In any case, make sure to take care of your key fob so that it will continue to provide you with years of trouble-free operation. You can extend its life by cleaning it regularly and staying clear of extreme temperatures or electromagnetic fields. Additionally, by selecting an expert with a lot of experience working with your particular car's model and make, you can rest assured that your key fob will work exactly as intended.