Gael Salcedo, 18, told KIMT3 he thought he was going to die after he crashed into the river.
A teenager whose car was sinking into freezing water was saved when he asked Siri to call 911.
Gael Salcedo, 18, from Iowa, hit a patch of ice and lost control of his car on Tuesday at around 7.30am local time.
He told US news service KIMT3 he thought he was going to die as he was unable to find his phone to call for help - but then had the presence of mind to use his phone's voice assistant to call for help.
He said: "I turned to the right and everything just went blurry, I didn’t know where I was going.