2018 Silverado 3500 LP5 Duramax - Steering wheel jerks/pulls/tugs left momentarily randomly at slow speeds

[aratz]

Hi I am having issues with the steering in my 2018 Silverado 3500 duramax. It has not happened before today. While driving straight at 40-45 km/h (25mph) on flat paved road, it feels like the steering wheel is being pulled left for a split second then returns to normal. A slight jerking or tugging. It feels like it is an electrical malfunction instead of mechanical. After reading other's posts, some say possibly a PSCM or ESM issue, others say an ABS or Stabilitrak issue where the left front brake is grabbing at random. I did have a blown out CV axel on the left front that I decided to finally change today but it has not fixed this issue. After researching a bit more I have discovered GM had a recall for 2015 vehicles having the same issue. Can anyone help me out in diagnosing? I fear if I bring it to the dealership they will not be able to replicate and give it back to me without a fix.

 

Here is a link to my YouTube channel and a video which clearly shows the steering wheel jerking and what I believe to be manipulated by an electronic malfunction

 

 

Thanks