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How to Program a MERCEDES Truck Key If you require replacement of the battery or your key isn't functioning, our parts department will be willing to assist you. Note that replacement keys must be ordered and synchronized in person at the dealership. This is to ensure your vehicle's safety and security. truck keys replacement must be requested by you or a person authorized to do so. Keys Some people have claimed that you can change the programming of your Mercedes key. It's not the case. Once the key is paired, it will not work with any other vehicle. The key has a particular design in its beam of metal and the Mercedes system looks for this and only recognizes the particular key. A new blank key from Mercedes is of a different form and will not be compatible with the system. The dealer will have to order from Mercedes a new key that is compatible with your vehicle. They do not have them in stock at the parts department. When you pick up your key, you'll need the original title, registration, and an official driver's license, passport, or identity card. This helps confirm that the person who has the key is the owner and not someone trying to steal the vehicle. If you have an authorized representative or delegate pick up the keys for you they must provide all the above documentation along with an official and dated letter of authorisation from the owner. The authorized representative or delegates must also bring the vehicle to the dealership to get keys. Contact the dealer if you have any questions. volvo truck key replacement are happy to help. They will let you know if they have the key available or need to place an order with Mercedes for a fresh key that is compatible with your vehicle. Remotes In some MERCEDES models the remote key comes with an interactive touch screen that shows virtual buttons. When a button is touched it sends signals infrared to control devices. A graphic interface program can be used to program the screen. The “buttons” that appear on the screen, are actually pictures of electronic circuit elements. They include capacitors, resistors, inductors, potentiometers, transistors, diodes, integrated circuits and switches. If you put your keys in the boot, it could be difficult to get them out of the truck without damaging the door and the Mercedes-Benz lock cylinder. You could try using a rope with an a slip knot to secure the lock cylinder and pull it open, but it's not a foolproof method. You might need to call a roadside assistance or locksmith to open the truck. The lower level case has a panel that is opened to hold the batteries. The panel is a light-brown color with white writing that indicates the type of battery that are recommended (UM-4/AAA). The panel also features a Minus and Plus sign indents that indicate which direction to install the coils of battery. Keyless Entry System SmartKeys come with Keyless Go unlock or start your car even when you don't have the key. This is accomplished by with a technique known as passive entry and go. This is accomplished by a transponder built into each SmartKey, which allows the vehicle to recognize the driver when it detects the key is within a certain distance. The key transmits signals at a low frequency that are received inside and outside the door handles. If the transmission matches the ID number on the PASE module (Passive Access and Security electronics) the system allows the key to act as a passkey to operate the vehicle. These systems are designed to ward off “replay attacks” which allow hackers to record and replay the signals for control and use them to gain access to a vehicle or a building. To stop this from happening the system uses a special algorithm that ensures that every signal sent by the keyfob is different from previous ones. The PASE module within the car will be able to detect if a thief attempts to record one of these transmissions and then attempt to reuse it.