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How to Replace a Lexus Key Fob That Won't Turn On Or Work Correctly It can be very frustrating when your key fob won't work or turn on. There are some simple steps you can follow to resolve the problem. The first step is to take the metal emergency key from the key fob. Utilize the flat side of a key made from metal to press the cover down and twist it open. Keyless Entry System Keyless entry systems are a wonderful convenience for anyone who drives. You can unlock your car when you even leave the passenger's door. Some of them will even turn on the lights when you get close. Some will even open the trunk when you are carrying groceries or 10 other electronic devices that are based on proximity. The key fob sends the radio frequency signal to the receiver inside the car, which in turn sends a response code back to the vehicle. The signal is valid only if the key fob is within a specific distance, typically 50 feet or less. Certain 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. No matter what type of keyless entry system that you choose it is recommended to have it professionally installed. A good automotive locksmith can assure that the connection is complete and secure, even if that involves stripping a small portion of each wire. The manual that comes with the instruction manual will outline the exact wires to use and it is essential to use only the ones required. Another benefit of keyless remote entry is that it will also lock your doors automatically when you walk away from your car. This is a great feature for those who are forgetful and often leave their car unlocked all day. Transponder Keys Transponder keys (or transponder chips) are a vital feature in most modern cars. These chips are placed in the fobs' heads or the head of the keys and come with a unique immobilizer code. The antenna ring at top of the ignition transmits a signal to the transponder chip once the key is inserted, and then turned on. The chip transmits an answer back to the antenna ring that is in line with your vehicle's code. The transponder chip is a deterrent to theft since the keys must be put in correctly and contain the correct code to allow your car to turn on. It's also harder to make a duplicate of these keys, making it less likely that someone is able to take your car. A reputable locksmith can create transponder keys that can be programmed for your vehicle at a fraction the cost of what you would spend at a dealership. They can also help figure out what type of key you have and how to program it to your car. They might even be able to give you a replacement for your stolen or lost transponder key. They may also be able to help you in reprogramming the chip if it has stopped working. Duplicate keys If it's your car key or your house keys, the majority of people have lost their keys at some time in their lives. It's frustrating to be locked out of your house or car. It's essential to have duplicate keys in order to avoid this problem. These duplicate keys are able to be used to open your lock and help you get inside if you're in a pinch. Most duplicate keys have an “do duplicate” message engraved or stamped on the keys. G28 Car Keys Solutions is to let others know that it is unlawful to duplicate a key, unless the owner is. Keys are used to open padlocks and deadbolts as well as other door locks. These keys can also be a useful tool to keep track of which customer's key is which. Many people believe that the “do duplicate” message on a keyboard can make it more secure. But, this isn't true. The message engraved on the keys is an indication of caution and doesn't carry any legal weight. It could discourage some from trying to duplicate their keys. A majority of chain hardware stores not cut these keys, but a locksmith can easily duplicate the keys. In fact, they can even be cut using a replica blank to ensure that the duplicate is accurate. Battery Replacement If your Lexus keyfob isn't working it could need to be reprogrammed to ensure that it is compatible with the immobilizer system in the vehicle. You'll need to visit the dealer or contact an experienced locksmith who can reprogram the ECU. Locksmiths typically charge more than the dealership, but you'll avoid the hassle of towing your car. Aside from the ECU and the battery, it could require replacement also. You'll have to replace your old battery with one that matches the specifications of your vehicle. This includes the physical dimensions, terminal configuration, as well as cold cranking amps (or amp-hour rating). If you install a defective battery it could cause significant damage to the engine and other components. Check the warranty before you buy a new battery to see if the cost is covered. It is also important to determine whether you require an insurance policy in the event that the battery fails within its coverage period. In addition, be aware that automotive locksmiths often don't carry the tools required to code keys, and you'll have to either have an online or dealer key programmer come in and program the key for you. It's also essential to inform them what type of key you want (chip or intelligent, or remote “push-to-start”) as well as the year your car was, and the VIN in the event that you can.