How to Repair a Dead Car Key
Sometimes extreme heat or cold can cause the car key to stop functioning properly. Try waiting a little while before you decide to replace it.
It's a real pain when keys to your car fail and they happen at the most inconvenient times! There are several ways to fix broken car keys that don't involve paying for 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 even have an inbuilt key that can be used to start cars. The fobs are powered by a tiny battery. If this battery dies then the key fob will no longer send a signal to trigger the vehicle. Fortunately, there are many ways to fix the problem and get your car running again.
First, check the condition of the key fob to determine if it's actually dead. If it appears to be, you'll require a replacement battery. You can do this yourself by removing the key fob from its clip or using a small flat head screwdriver to remove it. You should not use too much force or you could damage the fob. Also, make sure that you're using the right kind of battery. Most key fobs use the CR2032 3-Volt battery, however certain models may require a different type of battery. You can find out what kind of battery your vehicle requires by consulting the owner's manual, or visit an Interstate All Battery Center and ask a specialist to assist you.
If the key fob actually isn't dead, you can sometimes revive it by moving closer to your car. The majority of key fobs utilize RFID (radio frequency identification) that only operates within a narrow distance. The ignition system needs to be able to detect the signal. You can unlock your car, or even start it by moving a couple of inches closer.
Many car manufacturers have a backup system that is activated when the battery on the key fob is low. Ford for instance has a slot that is devoted to the key fob. If it is properly inserted the key fob can be used to start the engine of the car. You can find the instructions in the owner's manual on how to locate the slot and insert the key fob correctly. If you are unable to start your car with this method, make sure to call roadside assistance for assistance.

Broken Key Ring
The chip inside the key fob is the one that communicates with your car's immobilizer system in order to start the engine. If the chip is damaged or if there are programming errors, the key will not be able to transmit the correct identification code and your car will not start. In some instances the problem with a defective transponder key may also be caused by physical damage or wear and tear on the key shell or contact pads.
Usually, when a key fob starts to fail to communicate with the immobilizer system of your vehicle and you notice specific warning indicators on the dashboard. These can include errors messages, a flashing light or the key not locking or unlocking the vehicle. If you notice these warnings contact your local locksmith immediately to request a replacement key fob or repair.
It is very easy to cause damage to your key ring by putting too excessive pressure on it, particularly when carrying a lot of keys. This can cause the key fob to snap in half and is among the most common causes of broken car keys. If this happens, attempt to use super glue to repair it by applying a small amount of the glue on both sides of the split and then gently pressing them together. It is essential to apply a gel-type adhesive that has a slow drying time to prevent drips or runniness.
If this method does not work, it's important to get in touch with a professional locksmith right away in order to prevent further damage to your car. repair car key 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. It's not cause for anxiety or anger. You can make proactive steps to lessen the chance of your key fob breaking in the near future. These include regular maintenance, key protectors and having a spare. car key and repair is ready to assist you in the event that your key fob fails.
Broken Key Loop
One of my MK5 keyfobs has broken off the small key ring loop at the top of the loop where it joins the keyfob. It's believed to be made of very soft metal or plastic. I've drilled a hole, and then wet-sanded the area to make it stronger but I'm guessing that the issue isn't solved by that.
I've also tried wrapping the broken part of the ring in clear tape, but it doesn't seem to do much good. This is a pity, as I use the tiny split rings to keep my keys in the right place.
If the case of the key fob is broken, you can usually open it and replace the battery if the battery isn't already dead. There are online kits available however they're only a temporary solution. It may be quicker to have it repaired by a mechanic. Alternately, you may find a replacement case at the home improvement store or a locksmith. They are not likely to be as expensive as a new key fob.