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Remote Key Fob Repairs If your remote key fob isn't working, the first thing to do is to check the battery. This is often the cause of your car not responding to its commands. A new battery can fix the issue, but if it doesn't, there may be a second issue. Luckily, most of these issues can be resolved by following a few easy steps. Check the Battery Key fobs have a variety of functions, such as remotely locking and unlocking your vehicle as well as turning on the interior lighting and allowing you to start the engine with a push of the button. If you notice that your key fob isn't working the way it did previously, or it requires you to be closer to your vehicle in order for it to unlock or lock the door, the battery in your remote might need to be replaced. Most key fobs are powered by a watch cell that is typically the CR2032. They are available at most grocery stores, hardware stores and some gas stations. The inside of the fobs can differ, so make sure to check your owner's guide to see the type of battery required. It is also advisable to keep a spare key fob handy since you never know when it could break or be lost. A remote key fob works by sending an radio frequency (RF) signal to the receiver inside your vehicle. When you press the button on the fob it transmits a unique number that is compatible with preprogrammed codes within the system of your vehicle. The car's receiver is then able to verify the code and opens or shuts the doors in accordance with the signal. If your key fob isn't working, it may need a new batteries or the codes need to be reset. While you wait for a new battery you can try a few things to make your key fob perform better. Consumer Reports reports that many automobiles have a feature that allows you to disable the key-chain alarm that is on your key fob by holding down the panic or lock button for ten seconds. This is a simple technique to protect your key fob from accidentally being activated while out in public, and it's a great way to safeguard your vehicle and yourself from burglaries that aren't yours to prevent. You can test your current battery using a multimeter to determine the voltage. Put the probes on the negative and positive sides of the battery, which should be labeled with the letter P or N or N, respectively. A reading of less than 3,0 volts could indicate that the battery needs to be replaced. Check the Buttons If you're unable to get your car key fob to respond when you press its buttons, it could indicate that the fob needs replacing. The buttons on the fob transmit a coded message to the vehicle receiver. It is not uncommon for them to wear out. The first step in troubleshooting a dead key fob is to try replacing the battery. If the new battery doesn't solve the issue then you should call a mobile locksmith near Apache Junction and see if they can reset your remote back to factory settings. This involves inserting your key into the ignition, then pulling it out and re-inserting it several times in an undetermined time, then pressing the lock or unlock button on your fob. It should sound a chime when you complete the process. It's also possible that your key fob has simply worn out, even though it has battery power to perform its duties. The contacts inside the device are similar to rubber, yet coated with an electricity conducting film that is susceptible to wear as time passes due to use and exposure to water. It is possible to repair this using a piece metallic tape and a punch. A remote key fob is equipped with numerous buttons that let you to open and close your vehicle's door or trunk, lock it and even start the car. Many cars also have a button that folds in the wing mirrors, which could be a huge advantage for drivers who frequently visit shopping malls and busy parking areas. Many people don't realize that the fob is also used to turn on the air conditioning or heating in the car before getting into it in the morning on a cold day or to cool it down on a hot day. In the majority of cases, only a dealer can replace a key fob. It is because the security and technology required to prepare an appropriate replacement can only be provided by a car dealer. If, however, you have an extended warranty or service contract for your vehicle that may provide an exchange 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 that allows you to lock or unlock your car without the need to insert a metal key. They usually use radio frequency (RF) technology to communicate with the receiver inside your car that processes and verifies the signal received. They can be a wonderful safety and convenience enhancement however, they can also stop functioning after replacing the battery. Key fobs are vulnerable to damage caused by force, water and scratches on the circuit board. The rubberized buttons can also wear out which can be a problem since they are used to open the doors and start the engine. This flaw has been used by thieves to steal cars and break in to homes. The key fob must function properly to ensure security. If your key fob isn't able to operate as usual, you can start by attempting to lock and unlock the car using your backup remote. If it works, then the problem is most likely to be with the primary remote. If you can try this out doesn't work, you can disassemble the remote and check the buttons and contacts inside to determine if there is an issue with the physical. When you take the remote off, look for any identifying logos or marks on the exterior. Some auto brands have distinctive logos on their back or a model specific number. This will help you identify the right replacement. Find the receiver module. It is usually located on the dashboard or close to the ignition in older vehicles. Examine for physical damage and make sure that the contacts are in good condition. You can try moving the key fob, or disconnecting the power temporarily to reset it. If the receiver module isn't working it's likely time to replace it. Contact the manufacturer to request parts and service, if needed. Otherwise, you could try changing the program to match the original paired connection with the key fob. This is a safe and easy procedure, but it does require access to the car's computer system with the correct scan tool. Reprogram A remote key fob, also referred as a remote control, is a small electronic device that allows you to control your car's trunk as well as the alarm system and locks from the distance. Fobs can be used to replace a metal keys or upgraded to an intelligent fob or a proximity fob that has extra features. In contrast to traditional keys made of metal, fobs aren't cut or copied by a burglar to gain access into your vehicle. However, these devices may lose their functionality as time passes due to battery issues or other causes. Fortunately, it's possible to repair these remotes, rather than replacing them all. Replacing a car key fob typically requires updating the unit's programming to match your car's security system. This is a complicated job, and could result in additional costs if done at the auto locksmith or dealership. Fobs can be purchased either as OEM (Original Equipment Manufacturing) or aftermarket options. OEM products are generally more expensive than aftermarket options. It is a good practice to refer to your owner's manual or look online for instructions specific to your vehicle model prior to replacing your fob. Different manufacturers may have varying procedures to follow when reprogramming an electronic device, and this information can assist you in avoiding any unnecessary costs. The first step to reprogram your fob is to unlock the driver door and hit the unlock button. The door locks should cycle within a few seconds, which indicates that your car is in remote-programming mode. If this doesn't happen, begin the process again. Once you've ejected the metal ignition key from your fob then you can use a flathead screwdriver or another tool to open the fob and access the circuit board 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 in a position to remove the old battery and install a new one. After reprogramming your fob, it's a good idea to test it by locking and unlocking the doors, and switching on the engine. The sound of clicking locks should signal that the new fob is successfully paired with your vehicle.