Reverse warning slogan

I think this should actually be understood from the perspective of language! 1. The subject of this sentence should be the car itself. The first object it reminds is the driver, and the second object is the pedestrians or vehicles around! Figuratively speaking, the car is telling the driver: "Please pay attention, what you are doing now is reversing!" " 2. The subject of this sentence should be the driver, that is, the person! The first object it reminds is pedestrians or vehicles around the car! You can also imagine the driver shouting "I am backing up, please pay attention to the pedestrians and vehicles around!" "So most cars use" Attention, reverse! "