Received the following safety recall in today’s mail from Toyota:
If the vehicle is operated in extremely low temperatures, there is a possibility that condensed moisture from a positive crankcase ventilation (PCV) port may seep into the brake system vacuum port (“port”) and freeze. The port is located inside the intake manifold and provides vacuum assist for the brakes.
Should this condition continue, ice may slowly accumulate at the port and in the worst case, ultimately plug the port. As a result, power assist to the brakes would gradually decrease (eventually to zero), and the increased pedal pressure required could lead to greater vehicle stopping distances, which may increase the risk of a crash.
Of course, they could have eliminated four words, simply by using the word “asymptotically”.