Unforeseen expenses are a given when it comes to car ownership, but it’s especially annoying when you’re a victim of a problem that isn’t covered under warranty. One such issue making the headlines is the number of modern vehicles that face issues due to chewed-through wiring. And it would seem the number of rat vs car incidents is rising. 

Tesla is the latest automaker to have fallen prey to rodent issues. According to the New York Post, complaints against Teslas being attacked by rats are on the rise and is now a significant concern for many owners. And, understandably, new car buyers aren’t thrilled when, after paying a hefty premium for a modern car, they find that it’s arguably more enticing towards a rodent by design. 

“Most auto manufacturers use the soybean vs oil in their wire insulation for newer vehicles because it is less expensive and better for the environment,” said Tesla service adviser Jose Solis in an email to one afflicted customer. The Tesla user in question has reportedly been left without the car for two months and counting. 

Read: We’re Asking You What’s The Most Reliable Car You’ve Ever Owned?

The growing problem within the automotive industry is indeed down to the use of soy-based insulation wiring instead of the petroleum-based alternatives that were used until roughly a decade ago.

The popularity of soy-based insulation has long been critiqued as it’s more attractive to rodents. However, the reasoning behind the switch was two-fold. Not only was it was cheaper, but the soy wiring is better for the environment. Unfortunately, the result is the rise of a severe issue for customers — one which won’t be covered under warranty.

Several carmakers have faced class-action lawsuits due to the rising issues with rats. However, as yet, Tesla has not had to face legal action for its wiring. 

That, however, may change, as more Teslas start appearing in cities with significant rodent populations such as New York, the NYT reports. Post-pandemic arrangements that have seen offices close or employ less full-time staff may also have contributed to a shift, as rats look for alternate food sources from reduced waste and food scraps.