At a glance
What can fail
The nuts fastening the windshield wiper motor to the wiper module may not be tight enough and can loosen or detach. This causes uneven wiper motion or wiper jamming if two of the three nuts come off.
What the fix does
Apply torque retention material to the wiper motor studs and nuts, then retorque them to specification.
Summarized — see the official notice for exact wording, dates, and contacts.