One problem related to check engine light on has been reported for the 2020 Nissan Titan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Nissan Titan based on all problems reported for the 2020 Titan.
I was sitting at a light waiting to turn left. The engine started to idle at almost 2000 toms. I went to accelerate to turn left and I had complete loss of power in the intersection. The engine would not go above idle speed of about 1100 rpm. The check engine light came on. I had to pull over. The code reader says the idle air controller has a fault. This is the second time this has happened but the first time it happened. In a dangerous intersection.