At a glance
What can fail
In hot weather, a saturated charcoal canister can expel fuel vapor onto a hot electric fan preresistor when the vehicle restarts, potentially causing an underhood fire.
What the fix does
The canister vent line will be repositioned away from the preresistor. A larger heat shield and fused wiring harness will be installed on the preresistor.
Summarized — see the official notice for exact wording, dates, and contacts.