According to Toyota, the recall is because it's possible for the fuel delivery pipes and the fuel pressure sensor to form a bad seal with the gasket between them because of a protective coating protecting against corrosion on the pipes. It's possible for this to eventually cause a fuel leak, and obviously in a hot engine bay that's a potential fire risk.
To fix the problem, dealers will replace the gasket and repair the gasket seating surface between the fuel delivery pipe and the fuel pressure sensor. The company will begin notifying owners soon. You can find the official press release, below.
Toyota is issuing three separate recalls covering 1.67 million vehicles worldwide with most of those models in Japan. It looks like the campaigns' impact on the US may be smaller, though. According to Reuters, Toyota isn't aware of any accidents, injuries or fatalities affecting the models. Some yet-unnamed Lexus models might also be affected.
The largest of the campaigns does not currently affect any US-market vehicles. About 802,000 units of the Toyota Crown Majesta, Crown, Noah and Voxy in Japan are being repaired to replace a seal that could leak in the brake master cylinder. Those already leaking get a new brake booster, as well, according to Reuters.
The only recall currently believed to affect the US is due to a problem covering approximately 759,000 vehicles with 423,000 of them here. The repair is to fix a faulty fuel delivery pipe that could cause a fire if the fuel leaks out. Unfortunately, we don't know which models it covers. Autoblog spoke to Toyota spokesperson Mona Richard and was told the information was still "under embargo." When exactly that embargo will lift isn't yet known, but we're on the case.
Finally, Toyota is recalling 190,000 Corolla Rumion and Auris models in Japan for a faulty evaporative emission control unit.
Autoblog is in contact with Toyota, and we'll update this story as soon as we know more about its affect on the US market.
TORRANCE, Calif., October 15, 2014 – Toyota Motor Sales, U.S.A., Inc., today announced plans to conduct a voluntary safety recall of approximately 423,000 Lexus vehicles including 2007 through 2010 Model Year LS; 2006 through 2011 Model Year GS; 2006 through 2011 Model Year IS; 2010 Model Year IS C; and 2008 through 2010 Model Year IS-F vehicles.
In the involved vehicles, the fuel delivery pipes in the engine compartment were manufactured with a plating to protect against corrosion. Some of the pipes could have been produced with plating particles on the gasket seating surface where the fuel pressure sensor is installed. In this condition, the sealing property of the gasket seated between the pressure sensor and the pipe could become degraded. During vehicle operation, fuel could leak past the gasket. In the presence of an ignition source, this could increase the risk of a vehicle fire.
Toyota is not aware of any fires, crashes, injuries or fatalities caused by this condition.
Owners of the vehicles involved will receive a notification by first class mail. Lexus dealers will repair the gasket seating surface of the fuel delivery pipe where the fuel pressure sensor is installed, replace the gasket with a new one, and re-install the fuel pressure sensor.
Detailed information is available to Lexus at www.toyota.com/recall and by calling Lexus Customer Service at 1-800-255-3987.