2010 Nissan Altima engine problems

Traveling east on I-20 in arlingtjon texas our car began losing power and coasted to a stop. We were powerless to move and could not get off the freeway. We were hit from behind and as reported our car went airborne. The truck that hit us also hit another vehicle and flipped onto its top. In all 4 people went to hospital including my self and my wife. In researching the reason the car stopped, I found a number of other cases over several years of people online that lost power in this type vehicle.

My check engine light came on, so I took the car to the mechanic, they told me that I had an error p0402 catalytic converter malfunction. They told me that this is a known issue with the nissan altima and that nissan knows about it and does not care to anything about it; he told me to google it and see the number of complaints online from nissan altima owners. I did just that and was amazed at how many complaints there were.