Same issue with my 2020 GMC Sierra. First happened 3 weeks after purchase. Drove 4 miles to local store. Finally started after 3 tries, 15 minutes later and with "low battery, start engine" message across dash cluster. Called sales rep and service rep and said you can bring it in but same old "if there aren't any code alerts" it will be a wasted service trip
Happened again one month later after 2 mile drive to post office. Started after 3 failed attempts. Immediately called the service manager at dealer who said "well you know, these new units are loaded with modules and when you take a short drive after the car has been parked for a while, those electronic modules don't have enough boost to become fully charged and that's what's causing the vehicle to not start." So logically my response was "so are you telling me the car is not engineered to make short trips?" Long story short the dealership said I need to put more miles on the vehicle regularly! Great answer! Net-net: spend $60k for new vehicle that won't start. Look for a recall to address typical GM piss poor engineering!
