DETROIT (AP) — Cars and trucks with electronic driver assist systems may not see stopped vehicles and could even steer you into a crash if you're not paying attention, an insurance industry group warns.

The Insurance Institute for Highway Safety, in a paper titled "Reality Check," issued the warning Tuesday after testing five of the systems from Tesla, Mercedes, BMW and Volvo on a track and public roads. The upshot is while they could save your life, the systems can fail under many circumstances.

"We have found situations where the vehicles under semi-automated control may do things that can p...