At a glance
What can fail
The brake stoplamp switch contacts may fail to close or open properly. If they don't close, brake lights won't work and cruise control won't engage. If they don't open, cruise control will disengage when braking but re-engage when you release the pedal.
What the fix does
An improved stoplamp switch will be installed to replace the defective one.
Summarized — see the official notice for exact wording, dates, and contacts.