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How to Repair a Dead Car Key Extreme cold or heat can cause the car to stop functioning. Wait a while before replacing it. It's a major pain when the keys to your car break, and it happens at the most difficult times! There are several ways you can repair a broken car key that don't involve paying for a new one. Dead Key Fob Batteries Modern key fobs allow us to open doors, trunks, and tailgates with ease without the need to search for a physical car key. Some key fobs have an inbuilt 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 fails, then the key fob can no longer transmit the signal needed to turn on 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 seems to be, then you'll require a replacement battery. You can do this yourself by taking the fob off its clip or using a screwdriver with a flat head. It is important not to apply too much force or it could cause damage to the fob. Also, make sure that you're using the right kind of battery. Some models might require a different type of battery. If keys repair what kind of battery your car needs 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. You may be able to revive the key fob which isn't dead by moving closer to the car. Since most key fobs are RFID (radio-frequency identification) they only function at a limited distance and must be near enough to allow the ignition system to be able to recognize the signal. You can unlock your car or even start it if you move a few inches nearer. Many car manufacturers have an emergency mechanism that can be triggered when the battery of the key fob is dead. Ford for instance has a slot that is dedicated to the key fob. If it is properly inserted the key fob will activate the engine of the car. Check your owner's manual for details on how to locate this slot and how to properly insert the key fob. If you're not able to start the car using this method, you should contact roadside assistance. Broken Key Ring The internal chip in the key fob communicates to the immobilizer on your car to enable the motor. If this chip becomes damaged or there are programming errors, the key isn't able to transmit the correct identification code, and your car will not start. A damaged transponder may be caused by physical damage to the key shell or wear and wear and tear on the contact pads. Often, when a key fob begins to struggle with the immobilizer system of your vehicle, you will see specific warning indicators on the dashboard. These can include error messages, a flashing light 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 easy to damage your key ring by putting too excessive pressure on it, particularly when carrying a lot of keys. This can cause the fob to crack in half. This is one of the main causes of broken car keys. If this happens, you can try using super glue to fix it by applying a small amount of the glue on both sides of the crack and then gently pressing them together. It is essential to apply a gel-type adhesive that is slow drying to avoid drips or runniness. If this method isn't working, you should contact a professional locksmith immediately to prevent further damage to your vehicle. A professional 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. If your key fob is damaged, it can be frustrating and uninviable. It's not a reason to be in a state of panic or anger. You can make proactive steps to lessen the likelihood of your key fob breaking in the future. This includes regular maintenance, key protectors, and having an extra. Quicksmith's team is ready to help you if your key fob fails. Broken Key Loop One of my MK5 keysfobs broke off the little key ring that is at the top, which is where it connects to the keyfob. It's made of soft metal or plastic. I've made a hole, then wet-sanded the area to make it stronger. However, I'm sure that's not helping. I've also tried wrapping the broken the ring with clear tape, but it didn't work as good. It's really too bad as I use the tiny ring to hold my keys in place on the tiny mini-splitring that holds the bigger split ring for the keyfobs that I have. If the key fob's case is damaged, it's often possible to open up the case and replace the battery (assuming the battery isn't already dead). There are online kits available however they're only an interim solution. It's better to have it repaired by a professional. Alternately, you may be able to find the replacement case at a home improvement store or locksmith. They are not likely to be as costly as a new key fob.