I know that some vehicles light up certain ECUs in the presence of the key fob, assuming the car will be started and driven away--so you shouldn't leave the fob in the (unlocked) car in your garage. I have a very secure garaging situation and like to leave the key in our cars. Will my '17 Citadel 5.7 ignore the fob until the start button is pushed and not drain the battery? Thanks for the information & tips!