I was just wondering if the Vehicle Stability Assist, Road Departure Mitigation, and Collision Mitigation Breaking Systems put any strain on the engine or any parts of the car. I plan on keeping the Collision Mitigation Breaking System on, but don’t really need the other 2 (and don’t even really feel a difference), especially if they cause strain.

 

welcome to the forum. only strain put on the engine i think is the air condition pump. it draws approx 15-20 hp off the engine. power windows will draw some power if opening or closing during acceleration. in reality, Honda accounts for all the strain during testing and developing. so not to worry and leave those things on. battery is being charged as the engine is running. if your car is under warranty, you need the ok from the dealership service manager in writing to disconnect any electrical items or safety items.

 

Vehicle Stability Assist, Road Departure Mitigation and Collision Mitigation systems are not used until there is a need for them
So, there is no strain until it is needed. And even then, the strain is below anything that will cause any damage to the vehicle.
Personally, would leave them all on. Better to be safe than sorry.