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The red circle is the 400V battery that I am talking about and it controls things like the electric steering, all the many electrical doo dads, and it helps your car know when to shut off the engine when you are in traffic. It is completely in the silver case and it protected so that if you do run through a puddle it wont get wet, but would still use caution. Like I said these things run like 8-10K to replace.
The orange circle is where the orange wire sheath comes out of the battery, that is protected as well, but where the sheath and battery meet is the major concern of water getting where its not supposed to. It SHOULD be a water tight seal, but you never know and can never be too careful. Also make sure to inspect the orange sheath to make sure it is not broken or cracked.
The green circle is the engine itself, and that black box is the air filter housing, along with the washer tank, etc. You can treat this like any other engine bay part, but know there are no plastic covers for the spark plugs so pay mind not to shoot water directly on those.
My last piece of advice is to open the hood and then put your keys inside of your house. You should not need to disconnect anything to avoid getting shocked, but the keys do communicate with the car to turn on the interior light when you walk up to the car and to unlock the car when you get the key close enough. To just be super extra safe I would open the hood, make sure the car is off, and then go put your keys back in your house. That should be enough to prevent electrical shock. Still, remember I am not a professional and do this at your own risk, I certainly did lol. You should be fine though. Good luck!
Like always common sense prevails, if you see electrical connectors and dont feel comfortable spraying them with water — don't — or cover them up with something.
