Is it safe to connect unhooked battery cables together to clear system to progrm

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! I mean, it's cool to watch the sparks fly but... It's not safe to connect the battery cables together. Instead, just disconnect the negative battery cable for about 15 minutes. That should reset the system without any risks. If you're not sure, checking with a mechanic is always a good idea! If you have any other questions, please call us at 877-913-1554! We'll gladly find you a certified RepairPal shop in your area!