`` To my horror , I realized Payton was still in her car seat . New signs are designed to warn drivers if they see a child in the back seat of a car . The National Highway Traffic Safety Administration says they are ` ` inconsistent and unreliable '' Heat stroke is the leading cause of non - crash vehicle deaths for children under the age of 14 .
New signs are designed to warn drivers if they see a child in the back seat of a car . The National Highway Traffic Safety Administration says they are ` ` inconsistent and unreliable '' Heat stroke is the leading cause of non - crash vehicle deaths for children under the age of 14 .