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Remote Key Fob Repairs Check the battery first If your remote key fob isn't working. This is the most typical reason why your car isn't responding when you make commands. If the issue persists it could be due to a different issue. Many of these problems can be resolved with some simple steps. Check the Battery The key fob has a number of functions. They can lock and unlock your vehicle remotely and turn on the interior lighting and even start the engine by pressing a button. If you notice your fob isn't responding the same way it used to, or you need to be closer to the vehicle to lock or unlock it, your remote battery might need to be replaced. Most key fobs use an ordinary watch battery, typically the coin cell CR2032. They are available at a variety of hardware stores, supermarkets, and even some gas stations. Fobs differ, however, inside so it's essential to check your owner's manual for the type of battery required. It's also recommended to keep an extra battery in your bag — you never know when yours could get lost or break! A remote key fob transmits an RF signal (RF) to the receiver in your vehicle. When you hit a button on the fob, it transmits a code that matches with preprogrammed codes within the system of your vehicle. The vehicle's receiver is then able to verify the code and opens or shuts the doors based on the signal. If you're having issues with your key fob, it may simply need an upgrade in the battery or the codes could need to be reset. While you wait for a new battery you can try a few things to make your fob work better. Consumer Reports reports that many automobiles come with a feature that lets you disable the alarm on your key chain key fob by pressing the panic or lock button for ten second. This is a straightforward trick that can protect your key fob from being activated accidentally in public. It's also an excellent way to protect your vehicle and your home safe from unwanted burglaries. You can test your battery's current state with a multimeter and read its voltage. The probes should be placed on the positive and negative side of the battery. These sides should be marked with the letters P or N. A reading that is less than 3.0 Volts could mean that the battery is in need of replacement. Check remote car key repair If your car's key fob isn't responding when you press the buttons on it this could be a sign the key fob needs to be replaced. The buttons on a fob perform various commands that send a coded signal to the car's receiver, and it's not common for them to become worn out over time. To troubleshoot a dead key fob, the first thing you should do is to replace the battery. If the replacement battery fails to solve the issue, you should contact an emergency locksmith in the vicinity of Apache Junction and see if they can reset your remote to default settings. This process usually involves inserting the key into the ignition and pulling it back out several times in the time frame before pressing one of the unlock or lock buttons on your fob. After you've completed the process you will hear a chime. Your key fob may also be worn out, even if the battery is still functioning. The contacts in the device are rubber-like, yet coated with an electrically conducting film that can wear away as time passes due to use and exposure to water. You may be able to fix this with the metallic tape and a hole punch. A remote key fob is packed with numerous buttons that allow you to open and close the doors of your vehicle and trunk, lock it, and start the vehicle. Many vehicles have a button that is able to be folded into the wing mirrors. This is a fantastic feature for those who drive through busy parking lots and shopping malls. Many people don't realize that the fob could also be used to turn on the air conditioning or heating prior to getting into the car on a cold winter day or to cool it down during the hottest summer day. In most cases keys are only replaceable by the dealer. It is because the technology and security expertise required to create an appropriate replacement can only be supplied by a dealer for cars. If, however, you have an extended warranty or vehicle service contract for your vehicle, that may provide replacing the fob. Check the Connections A remote key fob, also known as a remote control key car key remote, or smart key is a device that's wireless which allows you to lock or unlock your vehicle without having to insert the key in a metal lock. They utilize radio frequency technology (RF) to communicate with a receiver inside your car that confirms and processes signals that come in. They can be a great security and convenience feature, but sometimes they stop working after replacing the battery. Key fobs are susceptible to damage caused by blunt force, water and scratches on the circuit board. They can also get worn out which can be a problem because they are used to open doors and start engines. This vulnerability has been used by thieves to take cars and gain entry to homes. The key fob has to be functioning properly to ensure security. If your key fob doesn't function as expected, you can start by attempting to lock and unlock your vehicle using the backup remote. If it works it's likely the issue lies with the primary remote. If this doesn't work, you can disassemble the remote and check the internal buttons or contacts for signs of a physical issue. Check for any distinctive marks on the remote. Some automobile brands have distinctive logos on their back or a model specific number. This can help you locate the correct replacement. Then look for the receiver module, which is usually located under the dash or close to the ignition on older vehicles. Look for obvious physical damages and ensure that the contact points are in good condition. Try relocating the key fob or disconnecting power for a short time to reset it. If the receiver module isn't working It's time to replace it. Contact the manufacturer for parts and/or service, if needed. Otherwise, you could try programming the new module to match the original paired connection to the key fob. This is a safe and simple procedure, but you will require the correct scanner to access the car's computer. Reprogram A remote key fob, also known as a remote control, is a small, electronic device that allows you to control your trunk as well as the alarm system and locks from a distance. Fobs can be used to replace a metal keys or upgraded to a smart fob or proximity fob that has extra features. The fob cannot be cut or copied to gain access to your vehicle by thieves, unlike traditional metal keys. They can also become unusable over time, due to battery problems or other reasons. It is possible to repair remotes rather than replacing them. Replacing the car key fob usually requires changing it's programming to match the security system of your vehicle. This is a difficult task, and can incur additional costs if done at an auto locksmith or a dealership. Fobs can also be offered as aftermarket or OEM products, with OEM (Original Equipment Manufacturer) options generally costing more than aftermarket options. Before replacing the fob on your key, it is an excellent idea to refer to the owner's manual or search online for specific instructions for your car model. Different manufacturers might have different steps to follow when reprogramming the fob and this can help you avoid any unnecessary fees. To reprogram your fob, open the driver's door and press the unlock key. The door locks should be able to cycle within a couple of seconds, signalling that your car has entered the mode of remote programming. If this does not happen, you will need to begin the process over again. After removing the metal ignition key, make use of the flathead screwdriver to break the fob and gain access to the circuit inside. This isn't easy and it's crucial to take your time in order to avoid damaging the housing or circuitry. Once you've accessed the board, you'll be able to remove the battery that was in place and replace it with a brand new one. It's a good idea to test your new device by locking and unlocking doors, and beginning the engine. The sound of the locks clicking should be a sign that your car has been successfully linked to the new fob.