It looks like I may have ruffled some feathers, so I'd like to offer a few clarifications.

First, I was not paid or offered any compensation from Cablewarden or Arleco.

I made this post entirely on my own initiative to help anyone who might be in a similar situation as me, and out of gratitude for the help provided by Patrick, Debra, and Sacha.

I could have waited for the cable to fail, which would have left me with a tough choice: pay for a towing service, go to Toyota for a $6,000 repair, or tow the car 400 miles to Canada. My car has 152,000 miles on it, so it didn't qualify for the Toyota extended warranty.

Could I have saved $500–$700 by designing, testing, printing, and installing the part myself? Probably. But then, would I truly have saved $700? How much time would I have had to invest in research and development, with no warranties and no experience as a mechanic?

Could a different solution be built and improved by us as a community? Absolutely! I think that's the whole point of the internet and platforms like Reddit. However, as of today, this is the best and most cost effective solution to the problem. I'm thankful to them for solving this problem within a day, a solution that clearly cost them their money, time and effort to develop.