NHTSA Complaint #11595066 — 2016 MITSUBISHI OUTLANDER

I was driving home from work when the car started to violently shudder. I took my foot off the accelerator and it stopped, only to happen again when I resumed pressing the gas. This also causes the car to suddenly slow down somewhat dramatically. The tachometer also "bounces". I purchased this vehicle used and drove it for 6 or 7 months with no issues before this happened. I took I to a local mechanic who immediately identified it as the transmission. A check engine light came on and intermittently goes out and back on. This happened after the shuddering started. The problem is easily repeated just by simply driving the car. It has not been inspected by anyone other than the mechanic I took it to.