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Speak "Yes" To These 5 Remote Car Key Repair Tips
Car Key Replacement Services

If your car's remote for the key fob stops working, it can be frustrating and annoying. Luckily, most automotive locksmiths and dealerships offer replacement of your car key services that can help you get your key functioning correctly.

Before rushing to the dealership or a professional locksmith, try a few simple steps at home first.

Keys that have been stolen or lost are

Whether you dropped it in the car, left it on the counter when you went into the grocery store or just plain lost it and not having your key fob can be a big inconvenience. Fortunately, most of these problems can be solved by yourself, even without the help of a professional. You might need to replace the battery or the fob might have lost its pairing details -- both of which can be easily repaired.

Modern cars use remote controls that communicate with the vehicle using a radio frequency. When your fob works, it sends out a signal allowing you to lock and unlock the car remotely, as well being able to start the engine. The fob itself isn't a mechanical key and therefore you cannot have it cut at a hardware store and used to open your car. The latest fobs also come with transponder chips that must be programmed for your specific vehicle to allow keyless entry to function.

The most frequent problem with a car key fob is that it has lost its pairing with the vehicle. mobile key repair near me can happen if the battery goes out, or it can be caused by something as simple as a power failure. Consult your owner's guide for instructions. Although most modern vehicles have the option to reset and re-pair the pairing, you should also consult the manual. If the reset of your fob fails to fix the issue, you'll need to have it changed to a different program. This typically requires visiting an automotive locksmith or a dealership.

It's expensive to purchase a new fob for your key and it can take a few days for a dealer to order it and program it. Certain car insurance policies cover the cost of a replacement however if it doesn't, it's worth getting in touch with the car's manufacturer or a local locksmith to discuss replacing the fob. You can save money and time by having a locksmith create a copy of the key on-site. A locksmith can also cut new keys and replace the transponder chip. The new one will need to be synced with your car's receiver module.

Bad Battery

While modern car remotes are very convenient and offer a more secure method to start your vehicle, they can still be frustrating when they stop working. Fortunately, this is usually something that can be fixed by replacing the battery on the key fob.

Most modern remote key fobs utilize lithium ion coin cell batteries. They are quite inexpensive and are not limited in time, however they have a limit to how long they last. When a remote car key is used often the battery could wear out more quickly than normal. This could be due to being pushed or pressed hard, or by being exposed to moisture, which can cause corrosion.

The most frequent reason for the car key to not function properly is a worn-out or dead battery. If your remote key is not working, you must check this first. This is usually the solution to the problem. If not, you might have to replace the battery.

Most of the time, the battery is damaged due to corrosion or oxidation. It could also give acidic fumes, or leaking acid from the battery. This can cause poor connections between the terminals of the battery. This can be fixed by getting rid of the old battery and cleaning all of the contacts with a solution of baking soda and water. After cleaning, you can put the connectors back into place and then test the remote again.

If you're looking for a dead battery or one that is deteriorating and you need to determine whether any buttons aren't working. This could be a sign that there is a more serious issue with your remote, and you will need to get a professional to repair it. A specialist can tell you if your remote is repairable, or if it must be replaced. You can either repair it in a single visit using an onboard procedure or connect to your vehicle's OBD2 port to program a new key fob in a safe and fast way.

Bad Transponder Chip

The chip in your car key transmits a unique code to your vehicle's computer, similar to how the remote control for your garage door sends signals to its receiver to shut or open it. This informs the car that it is the right owner and stops anyone from running the engine without authorization.

When you try to start your car and it fails begin, it's an indication that your transponder has failed. This could be for a variety of reasons but it is generally an indication that you need an entirely new key.

A transponder chip that is not working is another sign. Your car won't lock with your key fob. If this happens, you will be required to manually lock your doors instead. This can be very frustrating especially if your vehicle is locked.

Finally, if your key fob battery is drained, it could cause the transponder cease functioning. This could happen over time, as the fob battery slowly loses its charge. It is always recommended to keep an extra battery for the key fob in the case that you can replace it as necessary.

There are a variety of other issues that could arise with the transponder chip in your car however the ones mentioned above are the most common. If the battery for your key fob is drained or the chip has gone bad it is essential to contact an auto locksmith to have the issue fixed as quickly as possible. They can reprogram the key or replace it entirely according to what's required. A Queen Creek auto locksmith will be able to pinpoint the problem for you and provide a reliable solution. Usually they are less expensive than taking your car to an auto dealer.

Pairings that are lost or damaged

The key fob in your car isn't impervious to damage and it's not uncommon to see them lose function as time passes. There are a few simple fixes that you can try to make your remote work again.

The first thing you should try is using a backup key to unlock and lock your car. This will help to ensure that your fob isn't at fault and will also help to eliminate a mechanical issue in the locks if it does turn out to be an electrical issue.


Batteries are typically the only thing needed to repair car key fobs. It's not costly to replace the batteries and you don't require any special equipment.

It is essential to choose the right type of battery. Most automotive remotes accept CR2025 and CR2032 batteries. However, some may utilize different types. You can verify the label on the remote or examine the inside if you're not certain. The battery will have a number printed or stamped on it. You can also make use of a multimeter to determine the voltage.

A different set of batteries can also be utilized. Sometimes, the batteries inside a fob can become corroded or worn out over time and replacing them could bring back the functionality of the remote.

If the battery change doesn't work you can clean your fob, and make sure that all the buttons are functioning. Car key fobs are not indestructible and may become dirty if they are tossed around in pockets or purses. In certain cases, taking the buttons off and cleaning them and flexing them in and out can get your remote back up and running.

If you've attempted all the steps on this list, and the car key fob isn't working, you'll probably need it reprogrammed. Grays Locksmiths can do this for you, and can also provide you with a brand new or used replacement, if needed.

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