Perhaps a solution is to put a detailed description of what is under the hood into the owner's manual (photos, block diagram, schematics, ...)? After all, the

Perhaps a solution is to put a detailed description of what is under the hood into the owner's manual (photos, block diagram, schematics, ...)? After all, the main reason for opening the hood is probably curiosity, to have a look. Sate the curiosity in advance and the need to open the hood, and the associated risk, goes away.