How to Repair a Dead Car Key
Sometimes extreme cold or heat can cause a car key to not function properly. It is best to wait a few minutes before spending money to replace it.
If your car keys are damaged, it's a real problem. It occurs at the worst moment! There are a few ways to fix broken car keys that won't require an entirely new one.
Dead Key Fob Battery
Modern key fobs let us to open trunks, doors and tailgates without having fumble around for a key. Certain key fobs come with a built in key that can be used to start our vehicles. However, these fobs depend on a tiny battery that is the power source for their remote functions. If the battery fails then the key fob cannot send a signal to activate the vehicle. There are many ways to fix a dead vehicle key fob.
First, try to find out if your key fob is dead. If it seems to be, you'll need to replace the battery. You can do it yourself by taking the fob off its clip, or using a screwdriver with a flat head. Be cautious not to put too much pressure on the fob or you could end up damaging the fob. It is also essential to make sure you're replacing the correct battery type. Most key fobs use CR2032 3-Volt batteries, but certain models might require a different type of battery. Find out the kind of battery your car requires in the owner's manual, or you can visit an Interstate All Battery Center and get a specialist in battery care to assist you.
It is possible to revive the key fob which isn't dead by moving closer to the car. Most key fobs use RFID (radio frequency identification) that only operates within a narrow distance. The ignition system must be able to detect the signal. You can unlock your car, or even start it if you move few inches closer.
Many car manufacturers have backup systems that can be activated when the battery of the key fob is low. For example, most Ford models have a separate slot for the key fob which will turn on the engine if properly inserted. TheKeyLab can find instructions in your owner's guide on how to locate this slot and insert the key fob in the correct way. If you're not able to start your car by using this method, call roadside assistance.
Broken Key Ring
The internal chip of the key fob communicates to the immobilizer of your car in order to start the motor. If this chip becomes damaged or if there are programming errors, the key will not be able send the correct identification code and your car won't start. In some instances a malfunctioning transponder key can also be caused by physical damage or wear and tear on the key shell or contact pads.
Often, when a key fob starts to fail to communicate with the vehicle's immobilizer system and you notice specific warning signs on the dashboard. These may include error messages flashing lights, or the key not locking the car. If you see these warnings, contact your local locksmith immediately to request a replacement key fob or repair.
When you carry many keys, it is easy to scratch the key ring. This could cause the key fob to split in half, which is one of the most frequent causes of broken car keys. 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 is slow drying so that you don't risk drips or runniness.
If this method doesn't work, you need to contact a professional locksmith as soon as possible in order to prevent any further damage to your vehicle. A professional locksmith can replace or repair your key fob quickly, and they will be able ensure that the ignition lock and door lock do not get damaged in the process.
It can be a bit frustrating when your key fob becomes damaged. However, it is not cause to panic or be angry. Instead you can take proactive measures to minimize the chance of your key fob rupturing again in the future, such as regular maintenance, using key protectors and having an extra key. Quicksmith's team is available to assist you in the event that your key fob is damaged.
Broken Key Loop
One of my MK5 keyfobs has snapped off the little 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 wet-sanded it to make it stronger however, I'm assuming that the issue isn't solved by that.
I've also tried to wrap the broken ring with clear tape but it didn't work as good. It's a shame because I use the tiny rings to hold my keys on the little mini-split ring which holds the larger split ring for the keyfobs that I have.
If the key fob's case is damaged it is usually possible to remove the case and replace the battery (assuming the battery isn't already dead). Online kits are available, but they only provide a temporary solution. It may be quicker to get it fixed by a professional. You can also find an updated case at the locksmith or home improvement store. They are not likely to be as expensive as an entirely new key fob.