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How to Program a MERCEDES Truck Key Our parts department is ready to assist you, no matter if you need to replace a battery or if your key no longer is working. Keep in mind that replacement keys should be purchased and synchronized at the dealership in person. This is done to ensure your vehicle's safety and security. VOLVO truck key can only be requested by you or an individual who is authorized to do so. Keys There are rumors that you can reprogram a Mercedes key, but this isn't the case. The key is paired “for the duration of its life” and once it's programmed to a vehicle, it cannot be used with another. The metal beam of the key has an exclusive profile, which is what the Mercedes system detects and recognizes. A new blank key from Mercedes has a different design and won't work with the system. The dealership will have to purchase a new, compatible key for your vehicle from Mercedes and they don't keep them on hand at the parts department. When you are picking up your key, you will need the original title, registration, as well as an official driver's license, passport or identity card. This helps to verify that you are the owner of the vehicle and not a person who is trying to steal it. If you have an authorized representative or delegate to pick up the keys for you, they will need to provide all of the above documentation as well as an official and dated letter of authorization from the owner. The authorized representative or delegate must also bring the vehicle into the dealership to retrieve the keys. If you have any other questions, contact the dealer and they will be happy to help. They will inform you whether they already have the key or if Mercedes requires an alternative key that is compatible with the vehicle. Remotes In certain MERCEDES vehicles the remote key is equipped with a touch screen that displays virtual buttons. When a button is pressed, it sends infrared signals to control devices. The screen can be programmed using a graphical interface program on the user's computer. The “buttons”, which appear on the screen, are actually images of electronic circuit components. These include resistors, capacitors, inductors, potentiometers, diodes, transistors, integrated circuits and switches. It isn't easy to unlock the truck when you have locked your keys in the boot. This is due to the lock cylinder and door of the Mercedes-Benz may be damaged. You could try using a rope tied with a slip knot to hook the lock cylinder and pull it open however, it's not a foolproof method. You might need to call an emergency roadside service or locksmith to open the truck. The lower case is equipped with an opening panel that can be opened to store the batteries. The panel is a light-brown color with white writing that indicates the type of batteries that should be used (UM-4/AAA). It also includes the Plus and Minus sign to indicate in which direction the coils of the battery should be placed when installing the batteries. Keyless Entry System SmartKeys with Keyless Go unlock or start your car even when you don't have the key. This is done with a technique known as passive entry and go. This is accomplished by a transponder integrated into each SmartKey, which lets the vehicle recognize the driver if it detects the key is within a certain distance. The key transmits signals at a low frequency that are detected inside and outside the door handles. If the transmission matches the ID on the PASE module (Passive Access and Security electronics) the system will allow the key to function as a passkey for operating the vehicle. These systems are designed to stop “replay attacks” which would allow hackers to record and replay control signals and use them to gain access to a car or a building. To stop this from happening the risk, a specific algorithm makes sure that every transmission sent by the key fob differs from previous ones. This means that if a burglar is able to record one of these transmissions and tries to use it again the car's PASE module will detect the attempt and deny access.