Front passenger wiper

Remove the snow from the wipers and then turn on the motor. Can you hear the wiper motor operate? If you hear the motor operate the nuts that secure the wiper arms to the wiper spindles may have come loose. Operate the wipers allow them to park and then put the arms in the position near the bottom of the screen then tighten the wiper arm nut (I think they are 12 or 14mm). If you don't hear the motor operate check the fuses but the motors are usually pretty strong and reliable.