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 Nevada, leaving a child unattended in a motor vehicle is considered a serious offense, especially given the state's high temperatures which can increase the risk of heat-related illnesses or death. Nevada law (NRS 202.575) specifically prohibits leaving a child who is less than 7 years old unattended in a vehicle if the conditions present a significant risk to the health and safety of the child, or if the engine is running or the keys are in the ignition. Violation of this law can result in misdemeanor charges. Additionally, such an act can be deemed as neglectful supervision and may be investigated by Child Protective Services (CPS). The consequences of leaving a child unattended in a vehicle can include legal penalties and intervention by CPS to ensure the child's welfare.