Radio/tape Cd Player problems of the 2018 Chevrolet Cruze

I was 3 feet from turning left at intersection left lane turn (light had just turned green) through a intersection, when I noticed my engine was off. I rolled across the intersection; attempted to restart the car - car didn't start. The electricity in car was still on and normal. Coolant was at normal temp. Only radio was on low volume. No dashboard lights- nor messages appeared. Car wouldn't restart. Was stuck halfway in right (oncoming traffic) turn lane & half in business driveway. Put car in park & tried to turn on again. Nothing. Steering, brakes, lights and doors were functional. Got help to push car in a parking space. Turned off car completely & attempted to turn on. Car cranked & almost started. Tried again - nothing. Turned off & removed keys to get out of car to look under hood. All looked normal. Got back inside car, attempted to start. It came on for 5 seconds then died. Waited. No dashboard lights nor error messages. Finally got car to crank and it stayed on. No error messages. Went trough car screen and voltage was normal 13 +/- volts; idle was normal - did not move around. Left business when message said about having antilock breaks checked but has not appeared on car screen since (didn't press breaks before it died. I prefer engine breaking). Received email from onstar that "an issue with the stabilitrak� stability control system in your 2018 Chevrolet Cruze has been detected. Please service your vehicle within 7 days. & an issue with the antilock braking system in your 2018 Chevrolet Cruze has been detected". I was almost hit by a truck while stuck half way in street. Called and complained to gm. Gm rep said I am past warranty by 9,000 miles (car is 1. 5 yrs old). They cant help. Told me to go to dealership. Called 4 dealerships, no techs on saturdays and no loaners since out of warranty. No error codes still. No lights lit up. Car is acting normal.