You should not leave a child unattended in a motor vehicle for any length of time. If children are trapped inside cars—especially in hot weather—they can suffer from heat exhaustion or heat stroke in a matter of minutes, leading to permanent disability or death. Heat stroke, also known as hyperthermia, can cause shock, seizures, irregular heartbeat, and heart attack, as well as brain, liver, and kidney damage. Leaving a child unattended in a car is also a form of neglectful supervision that is investigated by Child Protective Services.

In Oklahoma, leaving a child unattended in a motor vehicle is considered a serious matter due to the potential risks of heat-related illnesses or worse. While Oklahoma does not have a specific statute that makes it illegal to leave a child unattended in a vehicle, such actions can fall under child neglect laws. According to Oklahoma statutes, child neglect includes the failure to provide adequate supervision to a child, which could apply to leaving a child alone in a car. If a child is left unattended and suffers from heat exhaustion, heat stroke, or any other injury, the responsible adult could face criminal charges, including child neglect or endangerment. Additionally, Child Protective Services (CPS) may investigate instances where a child's welfare is believed to be at risk due to being left in a vehicle unattended. It is important for caregivers to understand the severe health risks, including shock, seizures, and organ damage, that can occur if a child is left in a hot car, and to always ensure the safety and supervision of children.