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How to Repair a Dead Car Key Sometimes extreme heat or cold can cause the car key to stop functioning properly. Wait a while before replacing it. It's a major pain when the keys to your car fail and they happen at the most difficult times! There are several ways to fix broken car keys that don't require a new one. Dead Key Fob Battery Modern key fobs allow us to open doors, trunks and tailgates without having to search for a key. Some key fobs have an integrated key that can be used to start our vehicles. However, these devices are dependent on a small battery that is the power source for their remote functions. If the battery is dead and the key fob dies, it can no longer transmit the signal needed to start the vehicle. There are many methods to repair a dead car key fob. First, you must determine if your key fob is in fact dead. If it appears dead, you'll require replacing 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. It is important not to apply too much force, or you could damage the fob. It's also important to be sure you are replacing the correct type of battery. The majority of key fobs utilize three-volt CR2032 batteries, however certain models might require something different. Find out the type of battery your car needs in the owner's manual, or you can go to an Interstate All Battery Center and ask a specialist to assist you. You can sometimes revive the key fob that's dead by moving it closer to the car. Since the majority of key fobs are RFID (radio-frequency identification) they only function for a short time and need to be near enough to allow the ignition system to be able to recognize the signal. If you move just a few inches closer to your car, it may unlock or even start. Many car manufacturers have backup systems that is activated when the battery of the key fob is low. Ford for instance has a slot that is dedicated to the key fob. When inserted correctly the key fob will start the car's engine. Check your owner's manual for details on how to locate the slot and how to properly insert the key fob. If you're not able to start the car by using this method, call roadside assistance. Broken Key Ring The internal chip of the key fob communicates to the immobilizer on your car in order to start the motor. If the chip is damaged or there are programming errors, the key will not be able send the correct identification code, and your car will not start. A malfunctioning transponder could be caused by physical damage to the key shell or wear and wear on the contact pads. There are a lot of warning indicators on your dashboard when a keyfob has trouble communicating with the immobilizer system of your vehicle. This could include error messages, flashing lights or the key not locking or unlocking the vehicle. If you notice any of these signs, you should contact your local locksmith immediately for key fob repair or replacement. It's very easy to damage your key ring by putting too much pressure on it, especially when carrying a lot of keys. This could cause the fob to break in half. This is one of the main causes of broken car keys. You can use super glue on both sides of the crack and gently press them together to fix the problem. Make use of a gel-type glue that dries slowly to prevent drips or runniness. If this method doesn't work, you need to contact an experienced locksmith immediately in order to prevent further damage to your car. A locksmith who is certified will be able to replace or repair your key fob swiftly and will also be able to ensure that the ignition lock as well as the door lock are not affected by the process. It can be a bit frustrating when your key fob gets damaged. However, it is not an excuse to panic or become angry. You can take proactive steps to reduce the likelihood of your key fob breaking in the future. This includes regular maintenance, key protectors, and keeping a spare. car key repairs near me is on hand to help you if your key fob fails. Broken Key Loop One of my MK5 keyfobs has broken off the small key loop on top of the loop where it joins the keyfob. Apparently it's made out of very soft metal or plastic. I've drilled a hole, and then wet-sanded it to strengthen it, but I suspect the problem isn't helped by that. I've also attempted to wrap the broken the ring using clear tape, but it didn't work as good. It's a shame because I use the little rings to keep my keys on the tiny mini-splitring that holds the larger split ring for the other keyfobs. If the case for the key fob itself is broken, it's often possible to open up the case and replace the battery (assuming the battery isn't already dead). Online kits are available however they're only an interim solution. It's better to get it fixed by a mechanic. You can also locate a new case at a locksmith or home improvement store. They are not likely to be as costly as an entirely new key fob.