One problem related to car stall has been reported for the 2013 Buick Regal. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Buick Regal based on all problems reported for the 2013 Regal.
Codes present in computer are p1101 air intake performance, p0101 mass air flow circuit a failure. The car has reduced power and surging during acceleration. Stumbling at start up. The vehicle's turbo wastegate fails to close before 3,500 rpm therefore causing a severe spool time on turbocharger the manufacture is unable to repair as per the 4 months the car has been being diagnosed and finally the service manager has admitted they are unable to repair the vehicle. Corporate gm in involved along with field technicians. Since the vehicle has been returned to me still failing now has active codes for u0100 lost communication with ecm, u0140 lost communication with body control module, u0128 lost communication with parking brake module, u0073 communication bus a off, u0101 lost communication with transmission control module since the can-bus is failing the car is now trying to stall intermittently while driving any speed.