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How to Repair a Dead Car Key Extreme cold or heat can sometimes cause the car to stop functioning. It is best to wait a few minutes before replacing it. It's a real pain when keys to your car break and it happens at the most uncomfortable times! There are several ways to repair a broken car key that don't require the purchase of a new key. Dead Key Fob Battery Modern key fobs let us to open doors, trunks and tailgates without having to fumble around for a physical key. Some key fobs have an integrated key that can be utilized to start our vehicles. These fobs are powered by a small battery. If the battery fails and the key fob stops working, it cannot transmit a signal that can be used to start the vehicle. There are many methods to fix a dead car key fob. The first step is to find out if your key fob is actually dead. If it seems to be dead, you will have to replace the batteries. You can do this yourself by taking the key fob off its clip or using a small flat-head screwdriver to pry it apart. Be cautious not to put too much pressure on the fob or you could end up damaging the fob. It is also essential to make sure you are replacing the correct battery type. The majority of key fobs utilize CR2032 3-Volt batteries, but certain models might require a different type. You can find out what type of battery your car needs in the owner's manual, or you can go to an Interstate All Battery Center and get a specialist in battery care to assist you. You may be able to revive the key fob which isn't dead by moving it closer to the car. Most key fobs use RFID (radio frequency identification) which operates in a limited range. The ignition system must be able to recognize the signal. If you move a few inches closer to your car, it may unlock or even start it. Many automobile manufacturers have a backup system that can be activated when the battery of the key fob is low. Ford for instance has a slot which is dedicated to the key fob. If remote car key repairs is properly inserted the key fob will start the car's engine. Refer to the owner's manual for information on where to find this slot and how to insert the key fob. If you're unable to start the car using this method, you should contact roadside assistance. Broken Key Ring The internal chip of the key fob is what communicates to your car's immobilizer in order to start the motor. If this chip becomes damaged or there are programming errors, the key will not be able to send the correct identification code and your car won't start. In some instances, a faulty transponder key may be caused by physical damage or wear and tear to the key shell or contact pads. Usually, when a key fob starts to fail to communicate with the immobilizer system of your vehicle there will be specific warning indicators on the dashboard. These may include errors, flashing lights or the key not locking the vehicle. If you are noticing any of these warnings, call your local locksmith immediately for key fob repair or replacement. It is very easy to damage your key ring when you put too much pressure on it, especially when carrying many keys. This could cause the fob to crack in half. This is one of the main reasons for a broken car keys. You can use super glue on both sides of the crack and gently press them together to fix the issue. Make sure to use a gel type of glue that dries slowly to prevent drips or runniness. If this method does not work, you should contact a professional locksmith right away to prevent further damage to your vehicle. A qualified locksmith will be able to replace or repair your key fob in a short time and will be able to ensure that the ignition lock and door lock are not affected by the process. When your key fob is damaged it can be frustrating and uninviable. It's not a reason for anxiety or anger. You can make proactive steps to lessen the likelihood of your key fob failing in the near future. These include regular maintenance, key protectors and keeping an extra. Quicksmith's team is available to help you if your key fob is damaged. Broken Key Loop One of my MK5 keyfobs has broken off the small key ring loop at the top of the loop where it joins the keyfob. It's made of plastic or metal that is soft. I've punched a hole and wet-sanded it to make it stronger, but I suspect the problem isn't resolved by that. I've also tried wrapping the broken part of the ring with clear tape, but that doesn't seem to do much good. It's a shame as I use the little rings to keep my keys in place on the tiny mini-splitring that holds the bigger split rings for the other keyfobs. If the key fob case is damaged it is usually possible to remove the case and replace the battery (assuming the battery isn't dead). There are kits online for this, but they usually only offer temporary fixes – it might be better to bring it to a professional who will swap out the battery and reprogram the key fob. You can also find the new case at an a locksmith or home improvement stores. They are not likely to be as expensive as an entirely new key fob.