Well add me to the growing list I guess, 2020 Z71 RST, only 3500 miles. We went to take to to dinner and it just cranked and cranked. It never started. Just shook my head and put the garage door down and jumped in my 2019 Honda Civic and went to dinner. On the way down to eat my truck texted my phone, said it needs service within one day. Got back in and tried it again and after cranking for a good 10 seconds it started and seems to run ok but thankfully a check engine light is on so it kicked something. It will go to the dealer on Monday. I will update here after I hear back.