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photo - cute dog locked in a car; text - dogs in hot cars protecting your pet from overheating in the car

It’s all about dogs this time.

Dogs, dogs, dogs.

Our wonderful four-legged friends who enrich our lives so much by drooling all over us and peeing on the carpet. And, of course, by eating any food (and many things that are not actually food) they can get their mouth on as soon as our backs are turned. Ah, the loyalty…

Come to think of it, I have a cousin who does the same thing.

But why dogs you may wonder.

Or you may not. You may have other things on your mind. It’s possible you’re not thinking about dogs at all right now. If that’s the case, please stop what you’re doing and start thinking about dogs, okay?

Thank you.

But what does Comedy Guys Defensive Driving have to do with dogs? They’re all about safe driving and ticket dismissal and insurance discounts and those sorts of things.

And — with the possible exceptions of Goofy and Hong Kong Phooey —no dog has ever driven a car.

That is true.

The safety issue here is pet owners leaving their dogs inside hot cars on very hot days. It happens multiple times every year, and it often ends in the dog suffering injury or even death.

But we at Comedy Guys hope that by understanding the dangers better, we can move people to take precautions to protect their beloved pets from the heat.


What Makes Hot Cars So Dangerous to Dogs?

The problem is many people don’t realize how quickly temperatures can rise to dangerous levels. Even on a day where the temperature is only 70, the temperature inside a car can rise to 90 in only ten minutes.

Dogs are particularly susceptible to the dangerous effects of heat. They are at their best between 68°F and 86°F, in general.

This is the temperature range called “thermo neutral zone,” meaning that their body doesn’t have to expend any energy to either keep warm or to cool off.

And remember that I said “in general.” This varies a lot based on the dog’s health, age, breed, and the thickness of their coat.

You can read more
about laws protecting
dogs in hot cars
in various states
at the Animal Legal
Defense Fund website.

Dogs can acclimate to a hotter or colder temperatures, but this needs to be done slowly over about two months.

A human body responds to heat with perspiration, to cool the skin. But dogs can’t sweat. Their bodies try to expend excess internal heat through panting. It works, but it can only deal with so much heat.

After that, the dog’s body heats up to point that the dog is miserable. And beyond a certain point, the dog begins to suffer damage to internal organs.

Physical damage aside, dogs have a huge need for companionship. Being left alone in a car causes them anxiety, which increases their heart rate and raises body temperature. This makes the poor things even more prone to the effects of the heat.


Dogs and Hot Weather

Hot cars aside, the summer heat in general poses difficulties for dogs and other pets. That simple walk around the block that was so much fun for your dog in April can be torture in August.

And dogs can’t tell you when their miserable, so you have to proactively watch their behavior for the signs of overheating.

  • Difficulty breathing or excessive panting
  • Increased heart rate
  • Drooling
  • Mild weakness or slowness
  • Clumsiness in moving or stupor
  • Collapse

Watching your dog suffer while overheating is bad enough, but don’t forget that there can also be long-term consequences for your dog, including neurological impairment and permanent damage to the kidneys, heart, and liver.


Some Points to Remember

  • Be especially aware of the humidity. On humid days dogs have a harder time breathing and may not be able to cool themselves sufficiently.
  • Limit exercise on hot days. This is good advice for dogs and people. On the hottest days, try to walk your dog on grass. Hot pavement can burn their paws. And always take plenty of cold water for both of you.
  • If you notice the signs of heat exhaustion in your pet’s behavior, get both of you out of the heat and into the shade. Or into the AC. Place ice packs on their neck and head and get them to the vet.
  • Keep in mind old dogs and very young dogs are more likely to suffer heat stroke. And so are breeds with short snouts like boxers and pugs.
  • Overweight dogs have a harder time cooling off. And this is becoming an increasing problem: The Association for Pet Obesity estimates that more than half of dogs and of cats in the USA weighed more than was healthy for them.


Dogs and other pets cannot protect themselves from being closed inside a hot car on a sunny day. It’s one of the things that we as responsible, loving pet owners have to do for them.

Always keep your pet’s welfare in mind and that dog will be stealing food from your plate for many years to come.

Comedy Guys Defensive Driving school is dedicated to making our students safer drivers.

And better trained, more knowledgeable drivers are safer ones.

Which includes knowing about the effects of heat inside a car on a summer day, whether we’re talking about dogs, drivers, or passengers. The Texas summer can be oppressive, and you need to know how to keep yourself and your passengers — especially the four-legged ones — safe from the heat.

Admittedly, most people take our driving safety classes or our online defensive driving course to get speeding tickets dismissed. Or to get a discounted price on their auto insurance.

But knowing about the dangers to dogs in hot cars is another aspect of driving safety that’s well worth talking about.