I just bought a 2016 MDX a month ago. I went to start it and nothing happened. When I pressed on the brake it was very stiff and then I pressed the start button and there was flashing lights around the gauges and I got a yellow key error with a exclamation point and signal(wifi) in it. Nothing happened. I replaced the batteries in both key fobs and nothing. I checked the battery in the car and it's fine. Disconnected the battery terminals to see if it would reset and nothing. I also tried holding the key near the start button and same error occurred. The car opens with the key fob but won't do anything when I try to start it. I can't even start it to get it to the shop to diagnose. I've attached a picture of the error code on the dash for reference. Can someone please help with advice?