
Squirrels have been known to cause extensive damage to automobiles while they are stationary. These animals are attracted to engine bays, especially when they are still warm and it’s cold outside.
A very convenient solution is an under hood rodent repeller. These ultrasonic squirrel deterrent products use a combination of sonic waves and strobing lights to scare squirrels away.
This will keep squirrels from nesting under your hood while parked.
There are a variety of products available for this purpose but only 2 of them are fit for our recommendation.
So let’s have a look at these devices and just how they work.
Loraffe Under Hood Rodent Repeller (Wired)

The first product we recommend is the wired version of the Loraffe Under Hood Rodent Repeller.
It uses ultrasonic sound waves along with flashing lights to disorient and discourage squirrels from seeking refuge under the hood of your vehicle.
This devices uses 2 wires to connect directly to your cars battery so that it doesn’t require any attention on your part after.
One of the nicest features of this product is that it automatically turns off when driving and then resumes operation within 10 seconds of parking the vehicle.
Furthermore, it has integrated low voltage protection which will disable the unit if it detects low battery voltage.
Watch this unit in action as it repels rodents with ease:
We absolutely love what people are saying about this product. It has helped solve the problems they were experiencing with squirrels destroying the wiring in their vehicles.
Reviewers are very grateful for the protection this product has provided.
It goes without saying that we give this device our seal of approval!
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Loraffe Under Hood Rodent Repeller (Battery)

Our second recommended product is the battery operated Loraffe Under Hood Rodent Repeller.
This electronic squirrel deterrent uses ultrasonic waves and pulsing LED lights to keep squirrels away from your car.
One of the aspects of this product that make it most suitable for automobiles is the fact that it is a battery squirrel repellent device. Therefore it does not require a power outlet or wiring into your vehicle’s electrical system. This makes it a perfect solution for those who aren’t comfortable connecting it to your vehicle’s battery.
Just be cognizant to replace the batteries every so often, especially in cold weather. A high mAh battery such as the Energizer Max would be a wise choice.
Furthermore, it conserves battery by automatically entering standby mode while driving. It does this with the use of vibration sensors.
Since there are no wires involved, it is extremely easy to mount this device to your car with the included zip ties.
Below is an instructional video on using this product by the manufacturer:
People seem very satisfied with the results this battery squirrel repellent has yielded.https://youtu.be/tDS958szng0
It is exceptionally easy to use and requires no intervention outside of periodic battery changes.
We absolutely love this electronic squirrel deterrent and recommend it to anyone looking to keep squirrels away from their cars.
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Bottom Line
An under hood rodent repeller is hands down the best squirrel repellent for cars.
With the extensive damage these animals are known for causing, it is a relatively cheap form of insurance.
Whether you opt for the wired or battery operated versions, both of them will provide you with all of the protection you need to keep these squirrels away from your automobile.
If you are looking for an ultrasonic squirrel deterrent for your house, please feel free to check out the products we recommend for this purpose.
We really hope these recommendations help you get these destructive animals out of your engine bays!
Please leave us a comment below and let us know how they worked out for you.