Smart can obtain this code for you (price unknown) that, when entered into the stereo, will reset the security code back to 0000 allowing you to turn the stereo on, gain access to the menus and change the security code to something you'd remember. Don't forget it again as the reset code works once. Enter your code at this point (when the 4 dashes are shown), then press the smart symbol button to confirm the code. The radio should be activated. Example - if your code is 4321 you would get the 4 dashes to show and then press the "1" button x4 four times, the "2" button x3 three times, the "3" button x2 twice times and the "4 Write down your VIN number and visit your nearest MB/smart dealeship. They can look up the 4 digit unlock code for you. If your owner's document package is complte, the code may also be in there.Bil Find your radio code card and enter the code into the stereo as follows.Repeatedly pressing one of the station buttons (1, 2, 3 or 4 circled below) changes one of the numbers in the code line on the display. The first digit is increased by continually pressing station button number 1. I've had my Smart a year and I keep discovering things about it. I just happened upon the Security Code setting in the radio. I bought my Smart used. Any idea what the default code might be? Any ideas (besides going to the dealer) to get the code and/or reprogramming it? Visit the manufacturer's website. If you didn't find the stereo security code on the owner's booklet or glove box, the next step you want to take should be to check out the manufacturer's website for online radio codes. Smart 1998-2007 - What is the Smart Fortwo car radio code for? Read Answer; Smart 2004-2006 - How do you unlock the radio on the Smart Fortwo? we scroll with the up / down button until we find the written "Tire reset", using the end lever keypad, as shown in the video, select the turning off of the tire pressure warning light and exit the Smart - Video tutorial. Model: Smart Smart 453 - Years 2014-2022. Part: Car stereo. Operation: How to reset the radio of a Smart Fortwo. I recommend carrying out this operation with the battery disconnected, in order to avoid risks. Before we can begin, we will need to open the glove box. If you do find the code, use this process to reset the radio: Press the CD button, then use the four buttons below the radio, pressing the one on the far left first until the number on the readout area is the same as your first code number. Easiest method: Contact your local dealer's service department for the code or to reset the car radio for you. Second method: Go to the automaker's website with your car's information and request the code. Third method: Rely on free or paid online resources and databases. This article explains the options for finding a car radio code. k9oG.