What causes a grinding noise when accelerator is depressed traction active sensor comes on

That noise could be the abs pump activating becasue it thinks you are losing traction. This could be a bad speed sensor. You will need to scan the abs system first and pull trouble codes. Report back with the codes and we can help you further. If you prefer to have a shop take a look, Use this link to find a good shop near you. https://repairpal.com/repair-shops Alex