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How to Repair a Dead Car Key Extreme cold or extreme heat can sometimes cause the car to stop functioning. Wait a while before replacing it. It's a real pain when the keys to your car break, and it happens at the most inconvenient times! There are a few ways to fix 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 to open doors, trunks and tailgates without having search for a physical key. Certain key fobs come with an integrated key that can be used to start our vehicles. These fobs are powered by a tiny battery. If this battery dies and the key fob stops working, it will no longer send a signal to be used to start the vehicle. There are Ongoing of methods to repair a dead car key fob. First, you must determine if the key fob is really dead. If it appears dead, you'll require replacing the batteries. You can do it yourself by disconnecting the fob from its clip or using a screwdriver with a flat head. Do not apply too much force or you could damage the fob. It is also important to ensure that you're using the right kind of battery. The majority of key fobs utilize CR2032 3-Volt batteries, but certain models might require a different type of battery. If you're not sure which type your car requires the most common place to look is the details in the owner's manual, or visit an Interstate All Battery Center to get a professional to assist you. If the key fob isn't actually dead, you may be able to revive it by moving it closer to your vehicle. Since most key fobs are RFID (radio-frequency identification) they can only operate for a short time and must be near enough to allow the ignition system to recognize the signal. You can unlock your car, or even start it by moving a couple of inches closer. Many automobile manufacturers have a backup system that can be activated if the battery of the key fob is low. Ford, for example, has a slot that is dedicated to the key fob. When inserted correctly the key fob will start the car's engine. There are instructions in your owner's guide on how to locate this slot and insert the key fob in the correct way. If you are unable to start your car using this method, contact roadside assistance. Broken Key Ring The internal chip of the key fob is what transmits to the immobilizer on your car to allow it to start the motor. If this chip becomes damaged or if there are programming errors, the key isn't able to send the correct identification code and your car won't start. A damaged transponder may be caused by physical damage to the key shell or wear and wear and tear on the contact pads. There are often warning signs on your dashboard if a keyfob has trouble communicating with the immobilizer system of your vehicle. These could include error messages, flashing lights or the key not locking or unlocking the vehicle. If you see these warnings, contact your local locksmith immediately to request a replacement key fob or repair. It's easy to cause damage to your key ring by putting too much pressure on it, especially when carrying many keys. This could cause the fob to split in half. This is one of the main causes of broken car keys. It is possible to apply super glue on both sides of the crack and gently press them together to fix the problem. It is essential to apply a gel-type adhesive that is slow drying to avoid drips or runniness. If this method isn't working then you must contact a professional locksmith immediately to prevent further damage to your vehicle. A locksmith with the right qualifications will be able repair or replace your fob in a short time and make sure that the ignition and door locks aren't damaged in the process. When your key fob is damaged, it can be frustrating and uninviable. It's not cause for panic or frustration. You can take proactive steps to decrease the possibility of your key fob failing in the future. This includes regular maintenance, key protectors, and keeping a spare. If you do experience problems with your key fob, Quicksmith's team Quicksmith is available to assist! Broken Key Loop One of my MK5 keyfobs has snapped off the small key ring loop at the top where it attaches to the keyfob. Apparently it's made out of very soft metal or plastic. I've done a hole in the wall and then wet-sanded it to make it stronger. But I'm guessing that's not helping. I've also tried wrapping the broken part of the ring using clear tape, but that didn't seem as good. It's really a shame because I use the little ring to hold my keys on the mini-split ring that holds the bigger split ring for the keyfobs that I have. If the key fob's case is broken, you can often open it up and replace the battery if the battery isn't dead. There are online kits for this, but they generally only offer an interim fix. It might be better to take it to a technician who can swap out the battery and reprogram the key fob. You can also purchase the new case at a locksmith or home improvement stores. They're unlikely to be as expensive as an entirely new key fob.