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How to Repair Car Keys

The car keys are small and might not seem to be important, but they're vital for the proper operation of your vehicle. Replacing a traditional or a modern transponder key can cost up to $200.

There are many ways to repair your car keys yourself at just a fraction of the cost. This article will address the most frequently encountered car keys issues and their DIY solutions.

Dead Key Fob Battery

Cars come with remote key fobs that makes opening the doors and trunk easier than ever. The battery in the device is prone to dying. There are, however, some techniques that can be employed to fix this issue in the event of a need.


First, make sure that the car is still in ignition mode. If it is, the key fob's battery may be low, but not dead. To test this, press the button on the fob against the ignition button on the vehicle. If it works, the battery is probably fine and just requires to be replaced.

To replace the fob's battery, start by prying the case off using the help of a screwdriver or watch-type device. Be cautious not to apply too much pressure since this could cause the fob to break in two. If the fob doesn't seem to be coming open with ease, try placing your pry tool into several places on the outside of the case.

Open the electronic part of your car once you have removed the mechanical key. Install the new battery and then snap back the shell. If the key fob doesn't work after this, there could be a more serious issue with your car's remote start system that requires a professional to diagnose. A reputable mechanic will be able help you if this is the situation. If you need help with your vehicle and you need help, you can call roadside assistance.

Broken Key Ring

There are a few options you can do when your key fob does not work because the ring has been broken. Check to see if how to repair car key fob can locate the broken piece in the ignition. If it's still there the ignition, take it out without causing damage to the ignition lock or the door lock. If you have trouble getting it out, contact a locksmith for assistance. They have special tools to safely remove a broken key from the ignition.

Another reason that can lead to a broken car key is the corrosion of the circuit board or plastic frame. It is possible to clean the circuit board using cotton swab. This will eliminate the corrosion and protect to the contact pads.

You can fix a broken ring by using a thick wire or nail to close the hole. Superglue can be used to fix the broken key ring. After cleaning the ring with a moist cloth apply a small amount of superglue to each end of the wire or nail. Let the pieces dry and then press them together. These DIY solutions might look appealing, but they're just temporary solutions. For long-term repairs, you'll want to get an expert locksmith. They have the expertise and tools to fix a broken key quickly and efficiently. They can even replace the battery inside the key fob and change it's programming if required.

Broken Key Blade

Key blades can break due to wear and tear. If this occurs, you must buy a new one. This problem isn't nearly as serious as you think at first. The main problem is that the blade has separated from the case.

One method to fix this is to spray the key hole with lubricant. You can then employ pliers or tweezers grab the broken end of the key and pull it. You could also make use of a magnet if the key is magnetic. Be careful not to use a magnet on an ignition key because it could cause the lock tumbler to break.

If you're not able to remove the broken piece from the key, call an emergency locksmith. They're equipped with special tools that permit them to safely remove keys without causing damage.

Super glue can be used to fix the snapped lock. Apply a small amount glue to the edges of the crack and press them together. Make sure the glue is dry before inserting the key into the lock. This method isn't extremely reliable, and you might have to repeat it a few times before it works. Super glue may not hold the key together. This is more of a temporary solution than a permanent solution.

Broken Plastic Loop

If the loop of plastic on your key fob breaks it can make the key ineffective. Luckily, this is an simple fix. You can make use of wire or a nail for finishing as a replacement. For each end of the nail or wire, drill two holes into the plastic loop. Cut the nail or wire to a key width, then place a drop of superglue in each hole. Press the nail or wire into the holes and let them dry.

Another option is to purchase an alternative shell from a locksmith that sells them. They can take out the programmable part of your key, move it to the new shell and cut the new blade for less than a complete replacement cost.

This is not the best option, but it can allow you to travel once more if your key broken in half. However, it could be difficult to repair the blade of the key if it's in the ignition. You could try using a hair clip or needle extractor tool to remove the damaged part of the ignition, however it's risky if not careful. Call a locksmith with special tools to safely remove broken keys from ignitions. They can also make you new keys that have the appropriate cuts for your vehicle's ignition and ensure it works perfectly when it is put into the lock.

Broken Master Key

You'll need to at regaining the key before it's completely destroyed. You can use lubricants, tweezers, and needle nose pliers to grab the broken fragment of a key.

Spray the inside of your lock with WD-40 or graphite powder. You can also try the hacksaw blade method which involves carefully sliding the blade along the side of the broken key, and hooking onto some of the teeth - if you are able to do this, you will be able to remove the broken key from the lock.

Another tool that is useful is an extractor for keys spiral, that can be found in many hardware stores. It's a thin and flexible bar with spiral threads, that can be inserted into the keyway and bent to reach into the broken part of the key. Once it has hooked onto the serrations, it is possible to twist it in a circular motion, and press it against the broken portion of the key to take it out.

It's worth trying to get rid of the master key that is broken before calling a professional locksmith. If you're unable to pull the piece out, it's time to call the big guns - have a locksmith cut you a new key and reprogram it with your car's transponder.

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