Alexander Heit died shortly after the accident on April 3 on the outskirts of Greeley, Colorado.
The 22-year-old’s parents have now released an image of the text he was composing before he ran his car off the road.
He was responding to a friend’s message and had typed: “Sounds good my man, seeya soon, ill tw” before he crashed.
Heit’s mother Sharon released a statement via the police, which was published in the local newspaper.
It said: “I can’t bear the thought of anyone else having to go through something like this.
“Please, vow to never, NEVER text and drive. In a split second you could ruin your whole future, injure or kill others, and tear a hole in the heart of everyone who loves you.”
Police say Heit had a spotless driving record and wasn’t speeding.