Took My Bolt in to Dealer and Reported Problem
At the suggestion of several people here, I took my Bolt into the dealer and asked them to check for any updates, etc. My Bolt was built February 2017. Here is their reply on the paperwork when picking up the car.
"CUSTOMER STATES CENTER FRONT DISPLAY SCREEN GOES BLACK AT TIMES WHEN STARTING. LOADING AND ERROR MESSAGES ON THEN AFTER 1-2 MINUTES SCREEN COMES ON. NO DICS PRESENT. DISPLAY OPERATING AS INTENDED. NO RELATED BULLETINS. UNABLE TO VERIFY CONCERN"
So report the problem you are having to the dealer. If they get enough reports they will try to find the problem.