At a glance
What can fail
The high-pressure hydraulic pipe connecting the ACE pump to the valve block can crack at the pump connection, leaking fluid. Low fluid level causes pump failure, which throws off the auxiliary drive belt and disables power steering, cooling, charging, and air conditioning. Fluid ignition could cause engine fire.
What the fix does
Dealers will replace the hydraulic tubing with new tubing.
Summarized — see the official notice for exact wording, dates, and contacts.