Authorities released a 911 call made by an Ames woman, as she was flying through traffic on Interstate-35 when her accelerator became stuck.
Shortly after that, state troopers caught up with Laura Ulvestad's car and tried to divert traffic.
For 59 miles and 35 minutes, Ulvestad dodged traffic in Missouri and Iowa.
Finally, troopers advised her to pull the accelerator and hit the break at the same time. It was a winning combination that stopped the vehicle.
Ulvestad didn't hit anything, she climbed from her car shaken, but unhurt.
Kia Motors says it inspected the car but hasn't been able to figure out what happened.
It appears to be an isolated incident and they'll continue investigating and will work with Ulvestad to resolve the problem.