How to Repair a Dead Car Key
Sometimes extreme heat or cold can cause a car key to stop functioning properly. Wait a while before replacing it.
It's quite a hassle when the keys to your car fail and they happen at the most difficult times! Repairing on front page damaged key without the need to purchase a new one.
Dead Key Fob Battery
Modern key fobs allow us to open doors, trunks, and tailgates without the need for a car key. Some key fobs have a built-in key that can be used to start cars. The fobs are powered by a small battery. If the battery dies and the key fob dies, it can no longer transmit the signal to activate the vehicle. Luckily, there are several ways you can repair the problem and get your car operating again.
First, try to find out if your key fob is dead. If it appears to be, then you'll need to replace the battery. You can do it yourself by removing the fob from its clip or using a flat-head screwdriver. Be cautious not to apply too much pressure or you could damage the fob. It is also important to ensure that you're using the right kind of battery. Certain models may require a different battery. You can find out what kind of battery your car requires by consulting 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 can revive it by bringing it closer to your car. Most key fobs use RFID (radio frequency identification) that only operates in a limited distance. The ignition system must be able to detect the signal. You can unlock your car, or even start it by moving a few inches nearer.

Many car manufacturers have backup systems that can be activated when the key fob's battery is low. For instance, the majority of Ford models have a separate slot for the key fob which will turn on the engine if inserted correctly. You can find the instructions in the owner's manual of how to locate this slot and insert the key fob correctly. If you are unable to start your car using this method, you should contact roadside assistance.
Broken Key Ring
The chip in the key fob is the one that communicates with your car's immobilizer system to start the engine. The chip could be damaged or there might be programming errors. If this occurs the key fob won't be able transmit the correct identification code, and your car won't begin. In some cases, a faulty transponder key can also be caused by physical damage or wear and tear to the key shell or contact pads.
There are often warning signs on your dashboard if a keyfob has trouble communicating with the immobilizer system of your vehicle. These can include errors messages, flashing lights or the key not locking or unlocking the vehicle. If you are noticing these warnings contact your local locksmith immediately for a replacement key fob or repair.
If you have a lot of keys, it's easy to break the key ring. This can cause the key fob to split in half, which is one of the most frequent causes of broken car keys. You can apply super glue on both sides of the crack and gently press them together to fix the issue. Use a gel-type of glue that dries slowly in order to avoid drips or runniness.
If this method doesn't work then you must seek out a professional locksmith as soon as possible to prevent further damage to your vehicle. A locksmith with the right qualifications will be able replace or repair your fob in a short time and make sure that the ignition and door locks are not damaged during the process.
It can be very frustrating when your key fob becomes damaged. But, it's not cause to panic or get frustrated. Instead, you can take proactive steps to decrease the risk of your key fob breaking in the future, such as regular maintenance by using key protectors and keeping a spare key. Quicksmith's team is ready to assist you if your key fob breaks.
Broken Key Loop
One of my MK5 keyfobs is broken off the tiny key loop on top, where it connects to the keyfob. It's made of plastic or metal that is soft. I've made a hole in it, and then wet-sanded it to make it stronger but I'm guessing the problem isn't resolved by that.
I've also attempted to wrap the broken ring with clear tape but it didn't work to be any better. This is a pity, as I use the tiny split rings to keep my keys in the right place.
If the key fob's case itself is broken it is usually possible to remove the case and replace the battery (assuming the battery isn't already dead). There are online kits available, but they only provide a temporary solution. It's better to get it fixed by a professional. You can also find a new case at the locksmith or home improvement store. They're not as expensive as a brand new key fob.