A University of Iowa survey finds many people are uncertain how many safety technologies work – even those that have been around for a long time.
27% haven't heard of traction control, and the same percentage don't recognize the symbol indicating low tire pressure.
40% of people in the survey report their car acted in unexpected ways. A majority don't know how adaptive cruise control works.
Survey authors say there's a clear need for more driver education, because people need to understand safety technology in order to benefit fully from it.
The university has partnered with the National Safety Council to help fill the need, with a new campaign website called MyCarDoesWhat.org.