The update, dubbed "Sentry Mode," has been developed to enhance the car's intruder alert system using a new 360° dashcam surveillance feature. Once a robber is detected nearby, the car will start to play Bach's "Toccata and Fugue," a creepy organ piece usually used in horror movies.
Keeping Summer safe is most likely a reference to Rick and Morty season two episode six, "The Ricks Must Be Crazy." In the episode, Rick and Morty dive inside a car battery in order to repair it, leaving Summer — the granddaughter of Rick and sister of Morty — waiting in the car, with Rick giving the vehicle instructions to keep her safe. Naturally, things to do not go to plan.
This isn't the first time Musk has adapted pop-culture references into Tesla products. The "Ludicrous Mode" referenced ’80s sci-fi comedy Spaceballs, while future plans involve references to Tintin and Iain M. Banks' Culture novels.