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How to Replace a Lexus Key Fob That Won't Turn On Or Work Correctly It can be quite frustrating when your key fob won't function or turn on. There are some simple steps you can follow to solve the problem. First remove the metal emergency keys from the key fob. Then utilize the flat side of the key to press and open the cover. Keyless Entry System The keyless entry system is a great option for anyone who owns a car. They let you unlock your vehicle before you even reach a handle or exit the doorway for the passenger. Some even turn on the light when you get close. Some will even open the trunk if you are carrying your groceries or 10 other electronic devices that are based on proximity. The key fob transmits radio-frequency signals to the receiver inside the car. The receiver then sends back an appropriate response code to the vehicle. The signal is only valid when the key fob is within a certain range, typically 50 feet or less. Some of these systems work in a one-way fashion this means that the key fob will only be capable of locking or unlocking the car, but it is not able to start the engine. Whatever keyless entry system you choose It is recommended to have it professionally installed. A professional locksmith in the automotive industry will ensure that the connection is secure and complete, including stripping a small portion of each wire before connecting it. The instruction manual will show you the specific wires to use, and it is important to use only the ones that are required. Another benefit of remotes with keyless access is that it could also lock your doors automatically when you walk away from your vehicle. This is helpful if you are prone to forgetfulness or tend to leave your car locked for too long. Transponder Keys Transponder keys (or transponder chips) are an important feature of modern automobiles. The chips are incorporated into the head of a fob or key and contain a unique code which is linked to the car's immobilizer system. When a key is placed into the ignition lock cylinder, and then turned to ON, a signal is sent through the antenna ring at the top of your car's ignition to your transponder chip. The chip then transmits an answer back to the antenna ring that is in line with your vehicle's code. The transponder chip discourages theft because the keys must be put in correctly and have the correct code for your car to turn on. It's also more difficult to make a duplicate of these keys, so it's less likely that someone will be able to take your car. A reputable locksmith can produce transponder keys that are programmed to work with your car at only a fraction of the price that you have to pay at a car dealership. They can also provide information on what type of key is in your possession and how to program it. They may also be able to offer you an alternative to your stolen or lost transponder key. They may even be able to help you re-programme your chip if it's stopped functioning. Duplicate Keys It doesn't matter if it's your car keys or house key, most people have lost their keys at some point in their lives. When this happens, it's painful and uncomfortable to be locked out of your home or car. It's important to have duplicate keys on hand to avoid this situation. These duplicates can be used to open your lock and assist you to get inside if you're in a pinch. The majority of duplicate keys are stamped or engraved with a “do not duplicate” message. This is to let others know that it is unlawful to duplicate a key without the permission of the owner. These types of keys are usually used to open padlocks, deadbolts or other door locks. They are also great to keep the track of which key for a customer is which. Many people believe that the “do duplicate” message on a keyboard is a way to make it more secure. This isn't the case. The message that is engraved on these keys is an indication and does not have any legal value. It could deter some individuals from trying to duplicate their keys. Most chain hardware stores will not cut these keys. However locksmiths can easily duplicate the keys. In fact, they could be cut using a replica blank to ensure that the duplicate is correct. Battery Replacement If your Lexus key fob has stopped working, it will probably require reprogramming to work with the vehicle's immobilizer. You'll have to visit the dealer, or a locksmith who is qualified to reprogram the ECU. In general, locksmiths will cost more than a dealership, however they'll save you the hassle of towing your vehicle there. In addition to the ECU and the battery, it could need to be replaced too. lexus key replacement near me is necessary to replace your old battery with one that meets the specifications of your vehicle. This includes the physical dimensions, terminal configuration, and cold cranking amps or amp-hour rating. The wrong battery installation can cause serious damage to your engine and other components. Before purchasing a new battery, be sure to verify the warranty to determine if it covers the cost. You may also want consider whether you'll need an assurance in the event that the battery fails within its warranty period. Additionally, you must keep in mind that car locksmiths often don't carry the necessary tools to code keys, and you'll have to find a dealer or an online key programmer come in and program the key for you. Also, you should let them know what type of key you had (chip or intelligent fob remote “push to start”) and the year of your car, and the VIN number if possible.