At a glance
What can fail
Fluid can seep into the driver's door switch module, causing corrosion and circuit board shorts. This may make power windows and door locks work intermittently or stop working, and could cause overheating that melts components, producing odor, smoke, or fire.
What the fix does
Dealers will check the door module part number and install a new module if needed, at no cost to you. Parts are not yet available; you'll receive a second letter when they arrive.
Summarized — see the official notice for exact wording, dates, and contacts.