Thank you for your question and I understand your concern.
Your new dishwasher should start by shutting the door and selecting the cycle and options and pressing start. If it will not accept any commands, check to see if the control has been accidentally placed in the "Control Lock". Press and hold the "Control Lock" key pad for 3 seconds or longer until the control lock light turns off.
If control panel powers up and it accepts the cycle and option selections but won't start; could indicate a faulty door latch assembly.
Since the dishwasher is new I recommend calling for service to have the dishwasher diagnosed and repaired.
You can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services