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How to Repair a Dead Car Key Sometimes extreme cold or heat can cause a car key to stop functioning properly. You should wait a while before you decide to replace it. When Click At this website break it's a huge hassle. It always occurs at the worst timing! You can repair a broken key without the need to purchase another one. Dead Key Fob Battery Modern key fobs allow us to open trunks, doors and tailgates without having to fumble around to find a physical key. Certain key fobs come with an integrated key that can be used to start our vehicles. However, these fobs depend on a small battery that is the power source for their remote functions. If the battery is dead and the key fob stops working, it cannot emit a signal that could trigger the vehicle. There are a variety of ways to fix the problem and get your car functioning again. First, check the condition of the key fob to determine if it's really dead. If it appears dead, you will have to replace the batteries. You can do this yourself by removing the key fob from its clip or using a small flat head screwdriver to break it. Be cautious not to put too much pressure on the fob or you may cause damage to the fob. You should also make sure that you're using the right type of battery. Most key fobs are CR2032 3-Volt batteries, but certain models might require a different type. Find out the kind of battery your car requires in the owner's manual, or you can go to an Interstate All Battery Center and have a battery specialist help you. If the key fob actually isn't dead, you may be able to revive it by moving closer to your car. Since the majority of key fobs are RFID (radio-frequency identification) they only work at a limited distance and need to be within a certain distance for the ignition system to be able to recognize the signal. You can unlock your car or even start it by moving a couple of inches closer. Many car manufacturers have backup systems that is activated when the battery on the key fob is low. For example, most Ford models have a dedicated slot for the key fob which will start the engine when inserted correctly. You can find instructions in the owner's manual on how to locate this slot and insert the key fob in the correct way. If you are unable to start your car by using this method, call roadside assistance. Broken Key Ring The internal chip of the key fob is what transmits to the immobilizer of your car to enable the motor. If car keys repairs becomes damaged or if there are programming errors, the key isn't able to transmit the correct identification code and your car won't start. A faulty transponder can be caused by physical damage to the key shell or wear and tear on the contact pads. You will often see warning signs on your dashboard when the key fob is having trouble communicating with the immobilizer system of your vehicle. This could be errors, flashing lights or the key not locking the vehicle. If you observe any of these signs, you should contact your local locksmith right away for key fob repair or replacement. It's very easy to damage your key ring when you put too much pressure on it, especially when carrying a lot of keys. This could cause the key fob to break in half, which is one of the most frequent causes of car keys breaking. It is possible to apply 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 drys slowly in order to avoid drips or runniness. If this method does not work, it is important to contact a professional locksmith right away to avoid any further damage to your vehicle. A professional locksmith can replace or repair your key fob swiftly, and they will be able to make sure that the ignition lock and door lock are not affected in the process. It can be frustrating when your key fob becomes damaged. However, it is not a reason to panic or become frustrated. Instead you can take proactive steps to reduce the risk of your key fob breaking again in the future, including regular maintenance including key protectors, and keeping an extra key. Quicksmith's staff is on hand to help you if your key fob is damaged. Broken Key Loop One of my MK5 keyfobs is broken off the small key loop at the top, where it connects to the keyfob. Apparently it's made out of very soft metal or plastic. I've punched a hole and then wet-sanded it to strengthen it however, I'm assuming the problem isn't resolved by this. I've also tried wrapping the broken the ring using clear tape, but it didn't work as good. It's really a shame because I use the little rings to hold my keys in place on the mini-split ring which holds the larger split ring for the other keyfobs. If the key fob case itself is broken It's usually possible to open up the case and replace the battery (assuming the battery isn't dead). There are online kits available, but they only provide a temporary solution. It may be quicker to get it fixed by a mechanic. Alternately, you may be able to locate the replacement case at a home improvement store or locksmith. They are not likely to cost as much as an entirely new key fob.