Heat Wave Safety: Protecting Yourself and Others in Your Vehicle

Heat waves pose significant health risks, especially when you're in a vehicle. Understanding and implementing safety measures can prevent heat-related illnesses and fatalities.

How Does Heat Affect Vehicles During Heat Waves?

Even on mild days, the interior of a parked vehicle can heat up rapidly, reaching dangerous temperatures. Studies have shown that the temperature inside a parked vehicle can rise almost 20 degrees Fahrenheit within the first 10 minutes, even with a window cracked open. This rapid increase can be life-threatening for children, pets, and even adults. (weather.gov)

What Are the Risks of Leaving Children and Pets in a Vehicle During Heat Waves?

Leaving children or pets unattended in a vehicle during a heat wave is extremely dangerous. Children's bodies warm three to five times faster than adults', making them particularly vulnerable to heatstroke. In 2025, 31 children died of heatstroke in vehicles. (nhtsa.gov) Pets are also at risk; even on cool days, the temperature inside a parked vehicle can rise to dangerous levels, leading to heat-related illnesses or death. (cdc.gov)

How Can You Protect Yourself and Others in Your Vehicle During Heat Waves?

• Never Leave Children or Pets Unattended: Always ensure that children and pets are not left alone in a vehicle, even for a short period. (cdc.gov)

• Check the Back Seat: Develop a habit of checking the back seat before locking the doors and walking away to ensure no one is left behind. (nhtsa.gov)

• Keep Vehicles Locked: Always lock your vehicle when not in use and keep keys out of children's reach to prevent them from entering and becoming trapped. (nhtsa.gov)

• Stay Hydrated: Drink plenty of fluids, but avoid alcohol and high-sugar drinks, to help your body cope with the heat. (cdc.gov)

• Use Air Conditioning: If you have air conditioning in your vehicle, use it to maintain a comfortable and safe temperature inside.

• Park in the Shade: Whenever possible, park your vehicle in the shade to reduce the interior temperature.

What Should You Do if You See a Child Alone in a Vehicle During a Heat Wave?

If you see a child alone in a vehicle during a heat wave, it's crucial to act immediately:

• Call 911: Contact emergency services to get help as quickly as possible.

• Assess the Situation: If the child is unresponsive or in distress, attempt to get into the car to assist the child, even if that means breaking a window. Many states have "Good Samaritan" laws that protect people from lawsuits for getting involved to help a person in an emergency. (nhtsa.gov)

How Can You Stay Informed About Heat Risks During Heat Waves?

Stay informed about heat risks by checking local weather forecasts and heat advisories. The CDC Heat & Health Tracker provides local heat and health information so communities can better prepare for and respond to extreme heat events. (cdc.gov)

By understanding the dangers of heat waves and taking proactive steps, you can protect yourself, your loved ones, and others from heat-related illnesses and fatalities.