the nut can be found under the plastic shield at the bottom of the wiper blade,it justs pulls back,ment to say
gts
May 2015
turn wipers on,then off remove the nut that holds the wiper arm to the drive shaft remove the wiper arm,now replace it on the spline shaft with the arm in the rest position,put the nut back on tighten it and do same for the other one ,hope this helps