Skip to content
If you’ve ever taken your dog on a car ride, you may have noticed extra drooling. While it can be messy, dog drooling in the car is common and can happen for several reasons, including motion sickness, anxiety, excitement, heat, strong smells, teething, or dental problems.
In this guide, we’ll explain why dogs drool in the car, when it may be a concern, and how to make car rides more comfortable for your dog.
For a broader look at drooling behavior, read why do dogs drool?
Table of Contents
It’s a Natural Response
Drooling is a natural response for dogs. When dogs feel excited, nervous, overstimulated, or nauseous, their salivary glands may produce more saliva than usual.
Car rides can intensify this response because the vehicle is moving, smells are changing, and your dog may not fully understand what is happening. For some dogs, drooling is simply their body’s reaction to the experience.
It’s a Sign of Motion Sickness
One of the most common reasons dogs drool in the car is motion sickness. Just like humans, some dogs feel nauseous when riding in a moving vehicle.
Other signs of motion sickness may include:
- Vomiting
- Whining
- Restlessness
- Lip licking
- Yawning
- Panting
- Refusing to get into the car
If your dog also whines during rides, read why does my dog whine in the car?
They Smell Something Interesting
Dogs have an incredible sense of smell. During a car ride, your dog may pick up scents from food, other animals, parks, people, or outdoor environments.
Interesting smells can trigger anticipation and salivation, especially if your dog associates the scent with food, adventure, or excitement.
They’re Anticipating Something
Dogs thrive on routine and can quickly learn where car rides usually lead. If your dog often rides to the park, a friend’s house, daycare, or the vet, they may start drooling as soon as they get in the car.
This type of drooling may be linked to excitement, nervousness, or anticipation depending on the destination.
They’re Nervous or Anxious
Some dogs drool in the car because they feel anxious. This is especially common if they are not used to car rides, had a bad experience in the car, or associate the vehicle with stressful places like the vet.
Anxiety-related drooling may appear with shaking, pacing, panting, whining, tucked tail, or attempts to escape. Helping your dog build positive associations with the car can reduce stress over time.
They’re Excited
Not all drooling is negative. Some dogs drool in the car because they are happy and excited. They may be going on an adventure, visiting someone they love, or heading to a favorite place.
Excited drooling is often paired with wagging, alert body language, happy barking, or eager movement.
They’re Hot
Dogs do not sweat the way humans do, so they rely heavily on panting to cool down. Panting can sometimes lead to drooling, especially if the car is warm or poorly ventilated.
If your dog is drooling heavily, panting, restless, weak, or seems overheated, cool the car immediately and stop safely if needed. A Waggle Pet Temperature Monitor can help you keep an eye on temperature conditions when traveling with pets.
They’re Teething
Puppies may drool more during teething because their gums are sore and producing extra saliva. A car ride may make this more noticeable, especially if the puppy is also nervous or carsick.
Offering vet-approved chew toys before or after the ride may help soothe teething discomfort.
They Have Dental Issues
Excessive drooling in the car could also be related to dental problems. Gum disease, tooth pain, mouth injuries, or oral infections can cause dogs to drool more than usual.
If your dog drools excessively outside the car too, has bad breath, avoids chewing, paws at their mouth, or shows appetite changes, schedule a veterinary dental check.
If your dog drools around other pets, you may also want to read why does my dog drool around other dogs?
How to Reduce Dog Drooling in the Car
Once you understand why your dog drools in the car, you can take steps to make rides easier.
- Make the car a positive place: Start with short, calm rides to places your dog enjoys. Reward relaxed behavior with praise or treats.
- Take breaks on long trips: Stop every few hours so your dog can stretch, potty, drink water, and get fresh air.
- Use a car harness or crate: A secure setup can reduce movement, improve safety, and help anxious dogs feel more stable.
- Limit food before rides: If your dog gets carsick, ask your vet whether adjusting meal timing before travel may help.
- Keep the car cool: Use airflow, shade, and temperature monitoring to prevent overheating.
- Talk to your vet: If your dog has severe motion sickness or anxiety, your veterinarian may recommend medication or a behavior plan.
FAQs
Why does my dog drool in the car?
Dogs may drool in the car because of motion sickness, anxiety, excitement, heat, interesting smells, anticipation, teething, or dental issues.
Is drooling in the car normal for dogs?
Yes, occasional drooling in the car can be normal. However, heavy drooling with vomiting, shaking, weakness, or distress may need attention.
How do I know if my dog has motion sickness?
Signs of motion sickness include drooling, lip licking, yawning, whining, restlessness, vomiting, and reluctance to ride in the car.
How can I stop my dog from drooling in the car?
Use short practice rides, keep the car cool, secure your dog with a crate or harness, avoid feeding right before travel, and ask your vet about motion sickness support if needed.
Can anxiety cause dogs to drool in the car?
Yes. Dogs may drool when anxious, especially if they associate car rides with stressful experiences or are not used to traveling.
When should I call a vet about dog drooling in the car?
Call your vet if drooling is severe, happens outside the car, comes with vomiting, weakness, breathing trouble, mouth pain, bad breath, or sudden behavior changes.
That’s a Wrap!
Dog drooling in the car can happen for many reasons, including excitement, anxiety, motion sickness, heat, teething, or dental issues. While it is often manageable, frequent or severe drooling should not be ignored.
With short positive rides, secure travel setup, breaks, temperature control, and veterinary guidance when needed, you can help your dog feel safer and more comfortable during car rides.
For more everyday canine behavior insights, read 8 reasons why dogs lick you.
