I bought a new 2019 Chevy Colorado from Sierra in May, 2019. Three months later, my truck keeps dying and I can't accelerate over 50, so I take it to the dealer thinking it's no big deal, still under Warranty, right? WRONG! The minute I took it in, the guy behind the service desk starts mumbling something about "we don't cover "rat damage" (damage by rodents)." I thought it was strange he should say this. I'm in my 50's, have bought many new cars and never had any "rodent" problems or had anyone ever bring up the subject. So I didn't think anything of it. So, they give me a loaner because they think it will take a few days to find the problem. The loaner was an Equinox, which is completely foreign to me. So the next day, I'm at a new office I just rented and the parking garage is dark so I accidentally back into a column in the parking structure. The pole's okay, but there are a couple small dents in the rear of the car. I have insurance, but I'm still pretty upset. THEN, I get a call from Sierra, telling me... YUP! YOU GUESSED IT! RODENT DAMAGE. NOT COVERED! I'm thinking "this is too coincidental. The guys brings up a strange thing like "rat damage" before even looking at my vehicle and that's exactly what they end up diagnosing the problem to be." So I go online and do a little research. It seems that Chevy and a few other car manufacturers started using SOY wire coverings, instead of petroleum based covering a few years ago. Something they KNOW attracts rodents and causes them to chew through your wiring. There have been several class action lawsuits involving thousand of people over this. They KNOW that their manufacturing flaws are causing their customers BIG problems, so they SPECIFICALLY EXEMPT this damage in their warranties to save a few dollars at the expense of their customers. So, basically Chevy is stuffing their new cars full of rodent food and them specifically denying coverage on the damage caused by this. Because of this corruption, I not only had to pay hundreds of dollars out of pocket to repair the damages, but I was also forced to drive a strange vehicle that I was unfamiliar with and now I have to pay $1000 deductible AND higher premiums for the fender-bender. SIERRA SUCKS! I bought a new Spark at Sierra in 2013 and a new truck in 2019 and I was fairly satisfied with their service up to this point, but when I replace my Spark with a new vehicle next Spring, guess where I'm NOT going to buy it? Neither from Sierra OR from Chevy. WHAT A NIGHTMARE! NEVER CHEVY AGAIN!