I call it what it is.
A parked car can become a coffin.
Every summer — and even on mild spring and fall days — dogs die inside vehicles because someone believed they would “only be a minute.”
But temperatures inside a car are not what they seem.
The Truth About Car Temperatures
Even when the outside temperature feels comfortable, the inside of a parked vehicle rises dangerously fast.
According to the ASPCA, the temperature inside a car can climb 20 degrees in just 10 minutes — and continue rising rapidly after that.
On a 70°F day:
Inside the car can reach 90°F in minutes.
On an 85°F day:
Interior temperatures can exceed 100–120°F quickly.
Cracking the windows does not prevent heat buildup.
And here’s something many people don’t consider:
A hot engine beneath the vehicle continues radiating heat upward into the car — adding to the internal temperature.
Dogs do not sweat like humans.
They cool themselves primarily by panting.
Once the internal body temperature reaches 104–106°F, heatstroke begins.
Organ damage can follow quickly.
This can happen in less than 15 minutes.
“I’ll Only Be a Minute” Is Not a Plan
Lines are unpredictable.
Conversations happen.
Checkout takes longer than expected.
What feels like “five minutes” can easily become fifteen.
For a dog inside a vehicle, that difference can be fatal.
If you cannot bring your dog inside the store, leave them safely at home.
Most major retailers now allow well-behaved pets.
If you’re unsure, ask.
Advocating for your pet’s safety is part of responsible ownership.
The Hatchback Danger Most People Miss
Another overlooked risk is allowing dogs to ride in the hatchback area of SUVs.
Even with air conditioning running:
* Airflow often does not circulate well to the back compartment.
* Rear hatch windows are frequently not ventilated.
* Sun exposure through back glass intensifies heat.
* Dogs in rear compartments may not receive adequate cooled air.
If you must travel with your dog:
* Ensure full air circulation reaches the back.
* Use rear air vents if available.
* Monitor your dog’s comfort closely.
* Never leave them unattended in the vehicle.
Signs of Heatstroke in Dogs
If you ever suspect overheating, watch for:
* Excessive panting
* Drooling
* Lethargy
* Vomiting
* Bright red gums
* Staggering
* Collapse
Heatstroke is a medical emergency. Immediate veterinary care is critical.
What You Can Do Instead
* Leave pets at home when running errands.
* Plan pet-friendly outings where dogs are welcome indoors.
* Run errands before or after bringing your dog along.
* Advocate for pet-friendly policies.
* Speak up if you see a dog in distress.
If you encounter a dog left inside a hot vehicle, contact local authorities immediately.
Our Responsibility
Dogs trust us completely.
They rely on us for safety.
What feels like a small decision to us can be life-or-death to them.
If you love your dog — leave them home when necessary.
Their safety is not negotiable.
Learn More
For additional guidance and statistics on heatstroke and vehicle dangers, visit the ASPCA’s pet safety resources.