2016 Ford Explorer engine problems

My wife has been reporting experiencing nausea, dizziness, sleepiness and headaches during and after her drive home from work throughout October/November 2021and into December 2021. Our vehicle was involved in a high speed collision on December 24, 2021 while traveling EB on I-90 at approximately MP 101. I was driving at the time. It was at about 3:29pm. I couldn't quite recall what had happened and I was disoriented and confused for some time after the collision though I hadn't hit my head.

The contact owns a 2016 Ford Explorer. The contact stated while driving at various speeds, there was an abnormally strong odor coming into the cabin of the vehicle. The contact stopped the vehicle and rolled the windows down. There was no warning light illuminated. The vehicle was taken to the dealer to be diagnosed. The contact was informed that Carbon Monoxide was leaking into the vehicle. After researching, the contact became aware that there were similar vehicles that were experiencing the same failure.