This recall however does not take care of the known faulty Vacuum Pump. Faulty Pump recall came about a few months back where they replace the pump if
a loss of braking power is detected.
This software update is a band aid quicker and cheaper fix than replacing the root problem.
Aside from a possible loss in braking power...……..when the pump goes, it causes metal shavings to enter the oil system thus possibly grenading the engine.
Which is another good reason for replacing the newer upgraded Vacuum Pump.