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How to Repair a Dead Car Key Sometimes extreme cold or heat can cause the car key to not function properly. Try waiting a little while before you spend money to replace it. It's quite a hassle when your car keys fail and they happen at the most difficult times! There are a variety of ways to repair a broken car key that don't involve paying for the purchase of a new key. Dead Key Fob Batteries Modern key fobs let us open trunks, doors, and tailgates easily without the need for a car key. Some key fobs even come with a built-in key that can be used to start our vehicles. However, these key fobs depend on a small battery that is the power source for their remote functions. If the battery dies, then the key fob can no longer transmit the signal needed to start the vehicle. There are many ways to fix a dead car key fob. First, you must determine if your key fob is dead. If it appears to be, you'll need to replace the battery. You can do this yourself by disconnecting the fob from its clip or using an screwdriver with a flat-head. Be cautious not to apply too much pressure or you could cause damage to the fob. It's also important to be sure you're replacing the correct battery type. The majority of key fobs utilize CR2032 3-Volt batteries, but some models may require a different type of battery. You can find out what type of battery your car requires in the owner's manual, or you can visit an Interstate All Battery Center and have a battery specialist help you. If the key fob isn't actually dead, you may be able to revive it by moving it closer to your vehicle. Since the majority of key fobs are RFID (radio-frequency identification) they can only operate at a short distance and need to be within a certain distance for the ignition system to recognize the signal. If you can move a few inches closer your car, it might unlock or even begin to work. Many car manufacturers have backup systems that can be activated if the battery on the key fob is low. Ford, for example has a slot which is dedicated to the key fob. When inserted correctly, the key fob can be used to start the engine of the car. Check your owner's manual for details on how to locate this slot and how to insert the key fob. If you are unable start your car using this method, make sure to get assistance from roadside assistance. Broken Key Ring The internal chip of the key fob is what communicates to the immobilizer on your car to enable the motor. The chip could be damaged or there could be programming mistakes. If this occurs the key fob won't be able to transmit 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. Usually when a key fob starts to struggle with the vehicle's immobilizer system there will be specific warning indicators on the dashboard. This could be errors, flashing lights or the key not locking the car. If you see these warnings, contact your local locksmith immediately for key fob replacement or repair. It is very easy to cause damage to the ring of your keys by applying too much pressure on it, particularly when carrying multiple keys. This can cause the key fob to split in half and is among the most frequent causes of car keys breaking. If this happens, try to use super glue to fix it by applying a small amount of the glue to both sides of the crack and then gently pressing them together. It is important to apply a gel-type adhesive that dries slowly to prevent drips or runniness. If this method does not work, it's important to call a professional locksmith right away to prevent any further damage to your vehicle. A qualified locksmith will be able to replace or repair your key fob quickly and will also be able to ensure that the ignition lock and door lock aren't affected by the process. It can be frustrating when your key fob is damaged. However, it is not cause to panic or be annoyed. Instead you can take proactive steps to decrease the risk of your key fob breaking again in the future, such as regular maintenance by using key protectors and keeping an extra key. If you do encounter an issue with your key fob, the team at Quicksmith is ready to help! Broken Key Loop One of my MK5 keysfobs broke off the little key ring that is at the top, which is where it joins the keyfob. It's believed to be made of very soft plastic or metal. I've done a hole in the wall and then wet-sanded it to make it stronger. But I suspect that's not helping. I've also tried wrapping the broken portion of the ring in clear tape, but that isn't doing any good. It's really a shame because I use the little ring to hold my keys on the little mini-split ring which holds the larger split ring for the other keyfobs. If remote car key repair near me is broken it is usually possible to remove the case and replace the battery (assuming the battery isn't dead). Online kits are available however they are only a temporary solution. It is more efficient to have it repaired by a mechanic. You can also purchase a new case at an a locksmith or home improvement store. They're unlikely to cost as much as an entirely new key fob.