I have a 2016 accent that dash lights came on suddenly

What is your question?

While driving my 2016 accent with 26k miles, the brake light, abs light, traction control light all came on at once. The speedometer also stopped working. I shut the engine off and restarted, everything appeared to be fine. i contacted the dealer who said there would be no code that they could review to determine the cause. he simply stated it could have been a loss of communications. They didnt even want to do any diagnostics as they said any info would be to difficult to determine. Any ideas?

What makes this problem better or worse?

n/a

How long has your 2016 Hyundai Accent had this problem?

one time