The brake booster pump contains a compartment filled with nitrogen gas. This nitrogen gas can leak into the brake fluid causing reduced hydraulic pressure during application of the brakes. Reduced braking efficiency can increase the risk of a crash. Dealers will replace the brake booster pump assembly as necessary to correct this concern.
Airbags use a chemical reaction contained in an inflator module to create the pressure necessary to inflate the bags when deployment is required. These vehicles are being recalled because the front passenger airbag inflator may produce excessive internal pressure when deployed. As a result, the inflator module could rupture, causing metal fragments to strike vehicle occupants. Dealers will inspect and replace any defective passenger front airbag inflator module found.
The nuts that secure the windshield wiper arms may not have been tightened to the correct specification during vehicle assembly and as a result, if the wipers are restricted by an external load such as a build up of snow, one or both or the wipers may become inoperative. Inoperative wipers could reduce driver visibility and increase the risk of a vehicle crash. Lexus dealers will install new wiper arm nuts to correct this concern.
Toyota is recalling certain model year 2006 through 2011 RAV4 and 2010 Lexus HS250h passenger vehicles. If nuts securing the rear tie rod are not tightened properly during service, unwanted movement and rust can develop leading to component failure. Failure of the rear tire rod will cause an abrupt change in the vehicle's alignment. This could lead to a loss of vehicle control, increasing the risk of a crash. As of this writing, remedy information is not available for this recall.
The gas pedal can become stuck in the wide open position when trapped under an unsecured or incompatible driver's floor mat. A stuck open accelerator pedal may result in very high vehicle speed and make it difficult to stop the vehicle, increasing the risk of a crash. Dealers will modify or replace the accelerator and replace any Lexus driver's floor mat not specified for the vehicle.
The variable gear ratio steering (VGRS) steering system in these cars is controlled by a mico processor. The processor (Electronic Control Unit - ECU) programming for this system could cause the steering wheel to become "off-center" when restarting immediately after the vehicle is parked with the steering wheel turned. If this occurs, the vehicle could move in an unexpected direction, possibly resulting in a crash. Dealers will update the VGRS system to correct this concern.
The amount of adhesive applied between the inner and outer parts of the crankshaft pulley may be inadequate. If this is the case, the outer ring may become misaligned and/or not properly rotate with the inner ring, causing an abnormal noise and/or illumination of the Check Engine Light. In some cases, the power steering belt could come off resulting in a loss of power steering assist, increasing the risk of a crash. Dealers will inspect the crankshaft pulley and replace it if necessary.
Thirty-two vehicles with vehicle dynamics integrated management (VDIM) may have the incorrect calibration for the hydraulic control valves. As a result, the right front wheel may not be controlled properly during ABS (anti-lock brake system) or VSC (vehicle stability control) actuation. This could result in increased stopping distances and/or a failure to adequately correct a vehicle skid, either of which increases the risk of a crash. Dealers will replace the brake actuator to correct this concern. This recall is expected to begin during August 2011.
A module inside the hybrid drive inverter module may contain inadequately soldered transistors. These solder joints could fail under high electrical loads, resulting in illumination of various dashboard warning lights, drivability concerns, and/or engine stalling. If the vehicle were to stop unexpectedly, this would increase the risk of a crash. Owners will be notified in July 2011 if their vehicle is involved in this recall. They will received a second notice when parts become available. Dealers will inspect the hybrid inverter module production number to determine if the inverter contains the suspect transistors. They will replace any affected modules.
The floor carpet cover may interfere with the accelerator pedal if its forward retention clip is not installed properly. As a result, the throttle can become stuck in a partially open position, increasing the risk of a crash. Dealers will replace the carpet cover with a newly designed one. No owner notification schedule has been provided at this time.