Tesla recalls some Model X vehicles from 2016 because of a steering problem. According to Transport Canada, that the "bolts that attach the electric power steering assist motor to the steering gear may corrode and break" on some vehicles, and this can result in loss of power steering assist.
The automaker is offering free repairs for the SUVs, and it will replace the mounting bolts. And if broken bolts are found or these break during removal or can't be removed, Tesla will install a new steering gear. The company has notified affected drivers in writing, but you can also check through this webpage if your car is part of the recall.