Spiders In Your Car? – Here Are 7 Safe Steps To Get Rid Of Them

Your car can be a perfect home for many bugs and critters. And spiders are one of them.

In this guide you’ll learn –

  • What attracts spiders inside your car
  • Where do spiders hide inside your car
  • How to safely get rid of spiders in your car
  • Hacks that ensure bugs and spiders don’t enter your car

And a lot more. Keep reading

How Do Spiders Get In Your Car?

Spiders In Your Car

It’s always wise to begin with the fundamental question – why and how spiders enter your car?

In other words, what’s the reason behind spider infestation in your car.

The reason is simple. Wet and cold weather outside forces the siders to look for dry and warm places to hide.

That’s why they sneak into your home and car.

And how do they get in your car?

Spiders are great crawlers. Getting inside your car through the small gaps isn’t much of a problem for them.

They can easily crawl through the small gaps between the door and the car floor. Spiders can also enter your car through the open windows.

Another reason that plays a role in attracting spiders is a lot of clutter.

If your car has a lot of clutter and it’s dirty from inside, then it’s not only a haven for spiders but also for all kinds of bugs like maggots, carpet beetles and bed bugs.

So, keeping your clean and vacuuming the interiors goes a long way in keeping your car bug free.

Where Do Spiders Hide In Your Car?

Once they enter your car, there are certain places that they prefer to hide.

You need to know those places. Else your riddance process won’t amount to much.

Car vents, car mirrors, underneath the upholstery, at the back of the seat, and in the edges of windows are the most common places for the spiders to hide.

Spiders like to move to places inside your car where there’s least engine vibration.

So, if your car has a front engine, then spiders will avoid hiding in the front seat area.

If you drive a car like Porsche that has the engine at the center, then spiders hide at the opposite ends of the car.

How Long Can A Spider Live In A Car?

If your car has an ample condition to sustain a spider, then it can spend its entire lifetime inside your car.

With ample condition we mean, that your car has organic waste like food droppings and it’s also infested by other bugs.

Spiders can also eat other bugs living inside your car.

Spider species that infest homes and cars has a life span of 1-3 years. In this life span, they can live and multiply inside your car, spawning more spiders, if you don’t get rid of them on time.

Without food and water, a spider can easily live from ten months to a year.

Spiders can survive in cold temperatures of up to -5 degrees Fahrenheit. So, even if your turn on the AC of your car, the spiders won’t die. Spiders can also survive heat up to 70 degrees Fahrenheit.

How To Get Rid Of Spider In Your Car?

In this section you’ll know how to get rid of spiders in your car, step by step.

You’ll also find a quite a few options to get rid of spiders. You can choose one with whatever you’re comfortable with.

Step#1 – Declutter And Vacuum Clean Your Car To Remove Waste and Other Spider Attractants

Vacuum Cleaning Car's Interiors

The foundation for getting rid of spider and other bugs in your car is vacuum cleaning.

Vacuum cleaning your car will remove most of the adult spiders, spider eggs, and baby spiders in your car.

Before vacuuming, declutter your car.

The clutter is a hiding place for not just spiders, but also for many bugs like ants, carpet beetles, and German roaches in cars.

Decluttering your car can reveal many spiders hiding in the inaccessible places.

Ensure that you don’t try to handle these spiders because they’ll be aggressive and can bite you.

If you see any spiders in your car while decluttering, take a vacuum cleaner and use it on the spider to remove it.

Remove all the things lying around inside your car that you don’t need.  

Make sure you clean all the corners, especially the ones that you might ignore. For example, the inseams of the car’s upholstery, the area underneath the car foot mattress, and the rear of your car’s backseat.

Vacuuming cleaning your car at least once in two weeks keeps a lot of bugs away. Vacuuming will also remove all the organic wastes, garbage, and other bugs that attracts the spiders.

The best part about vacuum cleaning your car is that you will remove most of the spiders, their eggs, and baby spiders.

Some tiny spiders in your car are hard to spot. Vacuuming your car will get rid of them too by pulling them out from the hiding places.

The following steps will remove the rest of the spiders hiding in your car.

Step#2 – Seal Gaps And Cracks In Your Car From Stopping The Spiders To Sneak In

Believe it or not, there are some cracks and crevices in your car that spiders can use to sneak into your car.

Find those cracks and seal them with a good quality sealant.

You’ll find a lot of these crevices on the cars floor and at the back of your car’s backseat.

Step#3 – Sprinkle Diatomaceous Earth To Kill Spiders Hiding In The Gaps

Diatomaceous Earth

Now it’s time to hunt down the hiding spiders.

Though vacuuming can get rid of most of the spiders, but there are some slimy ones who might have scurried to hide in the deep corners of your car. 

Diatomaceous earth is a great and very underrated spider killer.

All you’ve to do is to spread some diatomaceous earth inside your car. Scatter it around in the inaccessible corners of your car.

Diatomaceous earth gets inside the body of the spiders and kills them by dehydrating them.

Bugs have moisture locked inside their bodies. The moisture is critical in keeping them alive. Diatomaceous earth dries up the moisture inside the bugs body causing death.

Once you’ve sprinkled diatomaceous earth, close the car doors if they’re open. And leave it for an hour or so.

Now, again vacuum clean the car to remove the diatomaceous earth and dead spiders.

Make sure that you clean all the corners. Chances are that there are dead spiders inside those hidden corners.

One thing to keep in mind is that use food grade diatomaceous earth. It’s safe for humans and pets.

Step#4 – Use Chlorine Oxide Car Odor Eliminators To Kill Spiders

Another ingenious way of getting rid of spiders from your car is to use chlorine oxide car odor eliminator, also known as chlorine bomb for spiders.

The odor eliminator not only gets rid of the stink inside your car, but it’s also a spider killer.

Some people call it as chlorine bomb for spiders because, just like any other car bug bomb, it spreads gas.

The gas spreads into every corner of the car including places like head liners, seat cushions, floor mats, and it kills the spiders.

All you’ve to do is take the chlorine oxide powder in a cup and add one ounce of water in it.

Keep the cup inside the car for one hour. Make sure your car is inside the garage, windows closed, and it’s away from direct sunlight.

Direct sunlight will warm up the car which will make the chlorine bomb ineffective.

Chlorine oxide car odor eliminators will remove all kinds of stinks and spiders from your car.

Step#5 – Use Citrus Essential Oil To Repel Spiders Living Inside Your Car

Citrus Essential Oil

Essential oils are great spider repellent. And the best one to get rid of spiders is citrus essential oil for spiders.

Mix a few drops of citrus essential oil with water and spray it inside the car. Spray in all the hard-to-reach corners where spiders can hide, including the window reams and side mirrors.

Spiders hate the smell of the citrus essential oil and they’ll abandon your car as soon as your spray it.

Essential oils are a great non-toxic bug and spider repellents. But they might not kill the spiders. Essential oils are more of a repellent than killers.

Eucalyptus, neem, rosemary essential oils are also effective in repelling spiders and other bugs.

Step#6 – Use White Vinegar To Repel Spiders, Especially Huntsman Spiders, From Your Car

Spiders hate the acidic pungent smell of white vinegar.

To get rid of them, mix two ounces of vinegar with one ounce of water in 3-4 different cups.

Keep the cups inside the car and keep the windows of your car open. The acidic smell of the vinegar will repel the spiders.

Huntsman spiders can’t tolerate the smell of this mixture at all. So, to get rid of huntsman spiders you can use this tactic of mixing vinegar with water.

Alternatively, you can soak some cotton balls in this mixture and keep them inside your car at different places. That will also work in repelling the spiders from your car.

Step#7 – Use Spider Traps In Your Car To Lure Them And Kill Them

Some spiders like the black widow, brown recluse, yellow sac, and hobo spiders are quite good in hiding and very hard to spot.

To get rid of them, or to get them out of hiding, spider traps come in very handy.

The spider traps are sticky, and lures the spiders out of hiding. Once the spider steps on it they sticks on these traps.

Some spider traps also kill spiders.

Keep spider traps in your car during the evening. Check them out the next morning, there’ll be quite a few dead spiders on these traps.

How To Get Rid Of Spiders In Car Side Mirrors?

One of the unusual places that some spiders can hide is your car side mirrors.

There can be spiders behind the side mirror or in the joints between the side mirror and the body of the car.

To get rid of spiders in car side mirrors you can wrap a plastic on the side mirror with the spider trapped in it.

Make a hole on the plastic and spray an insecticide like raid through the hole. Seal the hole and leave it for a few hours. The spider will die.

You can also use spider killer sprays in places like car vents and in the interior of your car to kill the spiders.

How To Get Rid Of Yellow Sac Spiders In Car?

Yellow Sac Spider In Car
Yellow Sac Spider

Yellow sac spiders can wreak some expensive damage inside your car.

That’s why we decided to dedicate one section to it.

Yellow sac spiders prefer the car engine under the hood, which is quite unusual.

The yellow sac spiders build cocoons to lay eggs in the gaps and cavities in the engine area.

Some of these cavities are a part of the fuel vapor line. Yellow sac spiders’ cocoons, and web, in these cavities chokes the fuel line that causes engine damage.

To get rid of yellow sac spiders, use a strong aerosol spider killer spray in the car engine area.

Then close the hood of the car for a couple of hours to let the spiders choke and die.

Open the hood the car and remove all the spider webs in the engine area. Use a hair dryer to eject all the cocoons and eggs from the engine area.

You can also use vacuum clean the engine area, but as far as our experience goes, vacuuming the engine area is quite difficult.

Yellow sac spiders enter cars and homes during the fall months looking for a warmer place to hide.

So, you might notice them inside your home and car during the fall more than in any other season.

But there’s a catch. Yellow sac spiders are not always yellow. They can appear as white spiders in the homes and cars.

As per experts, the color of the yellow sac spider depends on the color of the bugs they hunt and eat most often.

How To Keep Spiders Away From Your Car?

We’re sure that you wouldn’t like to have spider re-infestation, again and again.

No one will want to do all the procedures to get rid of spiders every month.

Keeping spiders away from your car is the best way to nullify chances of spider re-infestation.

Here’s how to keep spiders and other bugs away from your car –

  • Keep your clean. Vacuum clean your often. If you can steam clean your car upholstery, like seat cushions, then it’s even better. Steam cleaning produces heat and heat kills a lot of bugs, including bed bugs.
  • Avoid eating in your car. Food droppings inside your car is one of the major attractants of all kinds of bugs. And these bugs attract spiders.
  • If you’re keeping your idle for a long time, then make sure it’s in a garage and the windows are closed.
  • Always use a car freshener. Strong smells are bug repellents. If you can use essential oils in the car interiors often, then it’s even better.
  • Avoid animal products like fur, wool, leather, and feathers as car interiors. It’s a choice, but animal products attract all sorts of bugs and they’re high in maintenance too.
  • It’d be best that you also wash and clean the underside of your car. The underside of your car is a place where lot of spiders and bugs can hide.


In this post, you’ve got to know how to get rid of spiders in your car. You also got to know why spiders enter your car and how you can keep your car free from spiders forever.  

Cars are a great place for the spiders to hide and breed. Cars provide warmth and dryness that gives the spiders an ideal condition survive.

Even if your car is lying around for months, unused, spiders can still enter through the gaps between the doors and hide in your car.

Spiders can go without food and water for at least ten months, so it’s possible that even a stationary car can have spider infestation.

We strongly recommend keeping your car clean, especially from organic wastes and food droppings. These wastes are prime attractors of all kinds of bugs and spiders and can cause serious infestation.