The best place to start troubleshooting any electrical problem with your 2nd generation (2008, 2009, 2010, 2011, 2012, 2013 & 2014) Smart Fortwo is to check for a blown fuse or a faulty relay in the electrical panel. Take a look at my DIY tutorial for the procedure by clicking on the text link or the thumbnail image below.
2008-2014 Smart Fortwo Electrical Fuses Replacement Guide
