Jun 25, 2018 · Some believe the culprit could be modern car wiring or, more specifically, the soy-based insulation used to wrap it. This insulation can be an irresistible treat for rats, mice, squirrels,...

Feb 10, 2017 · Here is a full list (Updated 2023) of all car makes and models that are known to have soy based wiring, starting with the first year: Toyota. Honda. KIA. Hyundai. I have also seen numerous complaints that reference earlier makes and models than what is referenced above.

Mar 25, 2025 · To make cars more eco-friendly, many automakers have started making more and more automotive parts out of renewable materials. Among the most prominent is the use of soy based wiring, which some cars have begun adopting almost entirely.

Dec 7, 2021 · The myth that car wiring is being eaten by mice and other rodents due to the industry’s ubiquitous use of modern wiring that contains soy has been discounted by experts who have been in the...

Sep 11, 2023 · If you ask “Which cars do not have soy-based wiring” then the answer would be “No One.” All Toyota models come with soy wiring. 2011 Toyota 4Runner, Toyota Camry, Toyota Prius, Prius C, Tundra, and Toyota Highlander are some of them. Owners of these cars regularly struggle with the infestation.

Jun 25, 2021 · Ford uses a soy-based electrical wire coating that is cheaper and more environmentally friendly. It also tends to attract rodents that love the material for nest building. Prevention options are usually weird and range from coyote pee to capsaicin-laced tape.

Jan 1, 2021 · Understanding the Issue of Soy-Based Wiring and Rodent Attraction. Rodents, particularly mice, rats, and squirrels, have become a significant concern for vehicle owners due to their tendency to damage wiring and other components in cars.

Jan 8, 2022 · If rats seem particularly attracted to your vehicle’s underbody or engine bay, the problem could be related to extra tasty soy-based wires. The internet is full of DIY solutions for tackling...

Jan 26, 2016 · Environmentally friendly car wiring with a soy-based coating is too tempting for rodents to resist, according to a federal class-action lawsuit that demands Honda pick up the tab for the damage...

Sep 5, 2024 · Toyota is facing a class-action lawsuit alleging its wires contain soybeans, which attract rats—but is it true?