How to Repair a Dead Car Key
Sometimes extreme cold or heat can cause the car key to stop working properly. Try waiting a little while before you spend money to replace it.
When your car keys break it's a huge hassle. It always occurs at the most inconvenient timing! There are several ways to repair the broken car key that don't require the purchase of a new key.
Dead Key Fob Batteries
Modern key fobs allow us to open trunks, doors and tailgates without having search for a physical key. Some key fobs even have a built-in key that can be used to start our vehicles. However, these key fobs depend on a small battery that provides power to their remote functions. If the battery is dead then the key fob cannot emit a signal that could activate the vehicle. There are a variety of ways to repair the problem and get your car functioning again.
First, you must determine whether the key fob actually dead. If it seems to be, then you'll need to replace the battery. You can do it yourself by disconnecting the fob from its clip or using a flat-head screwdriver. Be careful not to apply too much pressure or you could damage the fob. You should also make sure that you're using the right type of battery. Most key fobs use three-volt CR2032 batteries, however certain models may require a different type. If you're unsure of the kind of battery your vehicle requires the most common place to look is the details in the owner's manual or visit an Interstate All Battery Center to have a battery expert help you.
You can sometimes revive a key fob that isn't dead by moving closer to the vehicle. Since most key fobs are RFID (radio-frequency identification) they only work at a limited distance and need to be within a certain distance for the ignition system to recognize the signal. You can unlock your car or even start it by moving a couple of inches closer.
Many automobile manufacturers have backup systems that can be activated when the battery of the key fob is low. For example, most Ford models have a dedicated slot for the key fob which will activate the engine when it is properly inserted. Refer to the owner's manual for information on where to find this slot and how to properly insert the key fob. If you're unable to start your car with this method, be sure to get assistance from roadside assistance.
Broken Key Ring
The internal chip of the key fob communicates to your car's immobilizer to allow it to start the motor. If this chip becomes damaged or if there are programming errors, the key fob will not be able to transmit the correct identification code, and your car won't start. In some cases the problem with a defective transponder key can be caused by physical damage or wear and tear to the key shell or contact pads.
There are a lot of warning signs on your dashboard when the key fob is having trouble communicating with the immobilizer system of your vehicle. These may include errors, flashing lights or the key not locking the vehicle. If you see these warnings, contact your local locksmith immediately for a replacement key fob or repair.
It's easy to cause damage to your key ring when you put too excessive pressure on it, especially when carrying multiple keys. This could cause the key fob to split in half this is one of the most common causes of car keys breaking. It is possible to apply super glue on both sides of the crack and gently press them together to repair the issue. It is essential to use a gel-type glue that has a slow drying time to prevent drips or runniness.
If this method isn't working, you should seek out a professional locksmith as soon as possible in order to avoid further damage to your vehicle. A professional locksmith will be able to repair or repair your key fob quickly, and they will be able to ensure that the ignition lock and door lock do not get damaged by the process.
It can be very frustrating when your key fob gets damaged. It's not a reason to be in a state of panic or anger. Instead, you can take proactive steps to decrease the risk of your key fob rupturing again in the future, including regular maintenance by using key protectors and keeping a spare key. Quicksmith's team is available to help you if your key fob breaks.
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 made of plastic or metal that is soft. I've drilled a hole, and wet-sanded it to make it stronger, but I suspect the problem isn't resolved by that.
I've also wrapped the broken portion of the ring in clear tape, but it isn't doing any good. It's a shame, because I use the tiny split rings to keep my keys in the right place.
If the key fob's case is damaged it is usually possible to open up the case and replace the battery (assuming the battery isn't already dead). Online kits are available however they're only an interim solution. It may be quicker to get it fixed by a professional. You can also locate an updated case at a locksmith or home improvement stores. car key remote repair to be as costly as the new key fob.