DuckManiac

The doors will unlock while driving and/or I can't use the key fob to lock doors when parked, I must use on door lock switch. This is intermittently. It may not do it for many weeks and then twice in a week and again not for some time. It doesn't have passive door locks, only remote door lock/unloc/start. I have changed the fob batteries and cleaned connections. No other problems. I'm thinking a bad accuator or control module. How can a check? Thank you for your attention.

2015 Silverado High Country. The doors will not lock using fob at times but will using door switch. Will unlock while driving intermittently. Both happens about once or twice a month. Have changed fob batteries and checked connections. Have made sure doors are closed tightly. It doesn’t have passive lock. Thank you for your help.