Taichung: A 40-year-old woman surnamed Pan recently drove her husband and friends to Dakeng late at night. They had intended to take a walk at Guanyin Pavilion, but relying on the car’s navigation system, they ended up on Trail No. 9. They got stuck on the narrow hiking path and were unable to move, so they had to call the police to guide them down the mountain. But how the car got up there in the first place? Pan had no idea.