Vapor lock can and does occur on fuel injected vehicles.
A fuel injected system is a closed loop system. That means whatever fuel isn’t used at the engine is returned back to the fuel tank. As this cycle continues, the fuel gets heated at the fuel rail(s) and starts heating up the fuel in the tank. This gets worse when the fuel level in the tank drops. This fuel in the tank becomes more volotile the hotter it gets, until it returns back to the hot fuel rail where it starts boiling and you have vapor lock. E10 gasoline also adds to the volotility of gasoline.
So on those hot days on the road, keep your gas tank a half full or more, and try to avoid E10 gasoline.
Tester