In colder months, it’s not uncommon for mice, rats or other rodents to take up residence in cars, where they chew on wiring, hoses and other critical parts that can cost thousands to repair or replace. An engine could be clogged with acorns and air conditioning ducts blocked by nests. Here’s how to keep these pests out of your car. (or camper!)

• Park in sealed garage, if possible, and keep the doors and windows closed.
• Look for gaps around garage windows and doors where rodents can sneak in.
• Replace garage weather stripping as needed to keep it tightly sealed.
• Keep “nesting” materials like newspapers, cardboard, rags and patio furniture cushions out of your garage.
• Don’t park near trash bins, and don’t store food waste trash cans in the garage.
• Keep your car’s interior free from food wrappers; their scent can draw rodents.
• Start your car regularly, even if you are not driving it.
• Place mothballs, (about $10 for a small box) under the hood to deter rodents.
• Try putting rodent deterrent tape around wires; it is treated with super-spicy capsaicin.
• Consider a specialized vehicle rodent spray, check instructions - it may need to be reapplied frequently.

Over the winter, keep checking for signs of rodent incursion, like droppings, chewed wire, and gathered nesting materials. If you find evidence of chewed wire coatings, with the inner wire exposed, the car may not be safe to drive, you may need a professional to come to you.

Source: Consumer Reports January 2023