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How to Repair a Dead Car Key Extreme cold or extreme heat can cause a vehicle to stop working. Try waiting a little while before spending money to replace it. It's quite a hassle when the keys to your car break, and it happens at the most difficult times! There are several ways you can repair broken car keys that don't require the purchase of a new key. Dead Key Fob Battery Modern key fobs let us open doors, trunks, and tailgates with ease without the need for a physical car key. Certain key fobs come with a built in key that can be utilized to start our vehicles. However, these fobs are dependent on a small battery that provides power to their remote functions. If this battery dies then the key fob will no longer transmit a signal that can be used to start the vehicle. Fortunately, there are many ways to repair the problem and get your car functioning again. The first step is to determine if your key fob is actually dead. If it seems to be, then you'll require a replacement battery. You can do this yourself by disconnecting the fob from its clip or using an screwdriver with a flat-head. Be careful not to put too much pressure on the fob or you may damage the fob. It is also essential to make sure you're replacing the correct type of battery. The majority of key fobs utilize CR2032 3-Volt batteries, but some models may require a different type of battery. If you're not sure which kind of battery your vehicle requires the most common place to look is the details in the owner's manual, or visit an Interstate All Battery Center to have a battery expert help you. If the key fob actually isn't dead, you can sometimes revive it by moving it closer to your car. Since the majority of key fobs use RFID (radio-frequency identification) they only function for a short time and must be near enough to allow the ignition system to detect the signal. You can unlock your car or even start it if you move a few inches nearer. Many car manufacturers have a backup mechanism that can be activated when the battery of the key fob is dead. For instance, many Ford models come with a designated slot for the key fob that will start the engine when it is properly inserted. You can find instructions in the owner's manual on how to locate this slot and insert the key fob correctly. If you are unable start your car using this method, be sure to call roadside assistance for assistance. Broken Key Ring The internal chip in the key fob is what transmits to your car's immobilizer to allow it to start the motor. The chip could be damaged or there might be programming mistakes. If this occurs the key fob won't be able to send the correct identification code, and your car won't begin. A malfunctioning transponder could be caused by physical damage to the key shell, or wear and tear on the contact pads. There are often warning signs on your dashboard if keys are not communicating with the immobilizer system of your vehicle. This could be errors, flashing lights or the key not locking the car. If you notice any of these warnings, contact your local locksmith right away to repair your key fob or replacement. It's very easy to cause damage to your key ring by putting too much pressure on it, particularly when carrying multiple keys. This could cause the fob to split in half. This is one of the most common causes of a broken car key. If this happens, try to use super glue to fix it by applying a small amount of the glue on both sides of the break and then gently pressing them together. Make use of a gel-type glue that dries slowly so that you don't risk drips or runniness. If this method doesn't work then you must contact a professional locksmith right away in order to avoid further damage to your vehicle. A locksmith who is certified can to repair or replace your fob swiftly and ensure that the ignition and door locks do not get damaged during the process. If your key fob gets damaged it can be frustrating and uninviable. But, it's not a reason to panic or be angry. You can take proactive steps to reduce the possibility of your key fob failing in the future. This includes regular maintenance, key protectors and keeping an extra. If you do encounter problems with your key fob the team at Quicksmith is here to assist you! Broken Key Loop One of my MK5 keyfobs has snapped off the little key loop at the top where it attaches to the keyfob. It's made of plastic or metal that is soft. car key immobiliser repair made a hole, then wet-sanded the area to make it stronger. But I suspect that's not helping. I've also wrapped the broken portion of the ring in clear tape, but that doesn't seem to do much good. It's really a shame because I use the rings to hold my keys on the little mini-split ring that holds the bigger split ring for the other keyfobs. If the key fob's case is damaged, you can usually open it and replace the battery if it is not already dead. Online kits are available, but they only provide an interim solution. It is more efficient to get it fixed by a professional. You can also purchase a new case at a locksmith or home improvement stores. These cases aren't as expensive as the new key fob.