In -13 degree farenheit, the vehicle locked me out. key fob left inside vehicle for 45 min, engine off, parked in a parking lot. remote start from inside building did not work due to fob in car. once i arrived back a the vehicle i found the doors locked, door handle unlock button unresponsive with multiple attempts. vehicle failed to unlock while i stood outside in -13 degree weather, completely unsafe, for 5 min. i tried all doors and tried unlocking from passenger side. there was no unlocking sound when pressing the door buttons. i tried the chevy app to unlock standing right next to the vehicle, it did not unlock immediately. after a minute or longer delay the locking mechanism started to engage or disengage randomly without me pressing buttons on the door or app. each time i tried to open the door without success. on the last click i was able to suddenly open the door. 2530 odometer reading.