Why Is Tow Terrified Of The Ghostlight?

A: Because he's traumatized, he's been severely abused all his life (look at him, he's beat up and battered and he has scabs, bruises and dents, plus his behavior is strange) (by a meaner bigger Tow Truck named Bubba) and he believes that the Ghostlight will attack him and kill him and eat him, that's why he's a coward and avoids this strange phobia of his (he's afraid of pain, death, guns and violence).

B: DUH, ghosts are scary (I don't think they are real) but I saw Brave and Ghostlights weren't mean or harmful in it.

C: He's just being a shy, submissive and fearful male

Fact: Creatures who have been severely traumatized avoid things. Avoidance of new or previously identified sources of danger (phobias about animals, noises, storms, getting wet, rain, ghosts, germs, scary stories, fire, monsters under the bed or monsters in general, etc.)