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How to Repair a Dead Car Key

Sometimes extreme cold or heat can cause a car key to not function properly. Try waiting a little while before you spend money to replace it.

It's quite a hassle when keys to your car fail and they happen at the most uncomfortable times! There are a variety of ways you can repair broken car keys that don't involve paying for a new one.

Dead Key Fob Batteries

Modern key fobs let us to open doors, trunks and tailgates without having fumble around for a key. Some key fobs have an inbuilt key that can be used to start cars. However, these key fobs are dependent on a small battery that powers their remote functions. If the battery fails then the key fob cannot transmit the signal to activate the vehicle. There are several methods to fix a dead car key fob.

First, determine whether the key fob actually dead. If it seems to be, you'll require a replacement battery. You can do this yourself by taking the key fob away from its clip or using a small flat-head screwdriver to pry it apart. Do not apply too much force, or you could damage the fob. You should also make sure that you're using the correct kind of battery. Most key fobs are the CR2032 3-Volt battery, however some models may require a different type. If you aren't sure what kind of battery your car needs, you can usually find the information in the owner's manual, or visit an Interstate All Battery Center to have a battery expert help you.

If the key fob actually isn't dead, you can sometimes revive it by moving it closer to your car. The majority of key fobs employ RFID (radio frequency identification) which operates at a short range. The ignition system needs to be able to detect the signal. If you are able to move a few inches closer your vehicle, it could unlock or even start.

Many automobile manufacturers have backup systems that can be activated when the battery on the key fob is low. For example, most Ford models have a separate slot for the key fob that will start the engine when properly inserted. Check your owner's manual for instructions on finding the slot and how to insert the key fob. If you are unable to start your car using this method, be sure to contact roadside assistance for assistance.

Broken Key Ring

The internal chip inside the key fob is what transmits to the immobilizer of your car to allow it to start the motor. If related web-site is damaged or there are programming errors, the key isn't able to send the correct identification code and your car won't start. In certain instances, a faulty transponder key may also be caused by physical damage or wear and tear to the key shell or contact pads.

Usually, when the key fob begins to have trouble communicating with the vehicle's immobilizer system there will be specific warning signs on the dashboard. These could 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 key fob replacement or repair.

It's easy to damage your key ring when you put too excessive pressure on it, especially when carrying a lot of keys. This could cause the key fob to break in half, which is one of the most common causes of car keys breaking. If this happens, try using super glue to fix it by applying a small amount of the glue on both sides of the crack and carefully pressing them together. It is crucial to apply a gel-type adhesive that has a slow drying time to prevent drips or runniness.

If this method does not work, it is important to call an experienced locksmith immediately to prevent any further damage to your vehicle. A qualified locksmith will be able to repair or repair your key fob in a short time, and they will be able to ensure that the ignition lock as well as the door lock are not affected by the process.

It can be a bit frustrating when your key fob gets damaged. It is not a cause to be in a state of panic or anger. You can make proactive steps to lessen the chance of your key fob breaking in the future. This includes regular maintenance, key protectors and having a spare. Quicksmith's team is ready to help you if your key fob breaks.

Broken Key Loop


One of my MK5 keyfobs is broken off the little key loop on top of the loop where it joins the keyfob. It appears to be made of very soft metal or plastic. I've drilled the hole and wet-sanded it to make it more durable. But I suspect that's not helping.

I've also attempted to wrap the broken part of ring with clear tape but it didn't look as good. It's a shame because I use the tiny split ring to keep my keys in place.

If the key fob's case is damaged, you could usually open it and replace the battery, if it isn't dead. There are online kits available to help, but they generally only offer temporary fixes - it may be faster to take it to a technician who can swap out the battery and reprogram the key fob. You can also purchase a new case at an a locksmith or home improvement store. They are not likely to cost as much as the new key fob.

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