Lexus has announced a voluntary safety recall on the select 2006-2007 GS 300/350, 2006-2009 IS 250, & 2006-2008 IS 350 models due to the possibility of a loose fuel pressure sensor — from the Lexus USA press release:
Toyota Motor Sales (TMS), U.S.A., Inc., today announced that it will conduct a voluntary Safety Recall involving approximately 245,000 2006 through 2007 Lexus GS300/350, 2006 through early 2009 Lexus IS250, and 2006 through early 2008 Lexus IS350 vehicles sold in the U.S. to inspect the fuel pressure sensor installation.
Due to insufficient tightening of the fuel pressure sensor connected to certain engine fuel delivery pipes (those with Nickel Phosphorus plating), there is a possibility that the pressure sensor could loosen over time. If loosening occurs, fuel could leak past a gasket used in the connection between the sensor and the delivery pipe and through the threaded portion of the sensor.
Lexus dealers will inspect the vehicle for fuel leakage and if no leakage is found, will tighten the fuel pressure sensor with the proper torque. If a fuel leak is confirmed, the gasket between the sensor and the delivery pipe will be replaced and the sensor will be tightened with the proper torque. The inspection and possible gasket replacement will be conducted at no charge to the vehicle owner.
There’s also some more details in the recall FAQ:
Are there any warnings that this condition has occurred?
There are no warnings that this condition will occur. However, if fuel is leaking from the fuel pressure sensor, in some instances a fuel odor may be noticed from the engine compartment.
How long will it take for the dealer to inspect my vehicle?
The inspection and tightening of the fuel pressure sensor to the proper torque will take approximately one hour. If a fuel leak is confirmed, the replacement of the gasket and tightening the sensor to the proper torque will take approximately three hours. However, depending upon the dealer’s work schedule, it may be necessary to make the vehicle available for a longer period of time.
All affected owners will be contacted directly by mail — I also recommend reading over the full recall FAQ for more information.
Update: Here are the specific date ranges for the GS & IS recall:
And here are the total number of models being recalled in the US: