Consumer Reports discovered a potentially fatal flaw with Tesla's Summon mode.

The vehicle's sensors apparently won't always detect a low-lying object, which means that while in Summon mode, there's a chance that the Model S/X could run over a child if the vehicle isn't stopped by the user.

While that wouldn't seem problematic, the issue is that if the phone app stops working or if the user happens to drop his/her phone, the car could continue moving, thus potentially running over a low-to-the-ground object.

Consumer Reports writes:

"After Consumer Reports raised safety concerns with Tesla’s Summon mode, the company agreed to add additional protections."

Tesla says it will implement the necessary safety measures as soon as this week in an effort to avoid risk to those who may be around a summoned Model S/X.