I totally forgot about it until one day this summer decided to enable it for whatever reason and I noticed it didn't engage. When scrolling through the dash menus I came to the Auto Start/Stop screen and there was a message that it was not available because the battery was charging (I'm assuming this means the second battery). Two easy ways to turn off the engine auto start system in the Chevrolet Silverado 1500 since they do not give you an off switch!Follow me on Snapchat @Malibu xuHG.