All Investigations » Investigation DP03003

  Defect Investigation of Unintended Engine Speed Increase/sa

Investigation of Unintended Engine Speed Increase/sa

Subject: Unintended engine speed increase/sa
Components covered:
  • Vehicle speed control linkages
Investigations Summary: This investigation was opened on Jul. 17, 2003. It was closed on Sep. 23, 2003. On may 13, 2003 the national highway traffic safety administration (NHTSA) received an April 25, 2003 letter from mr. Peter boddaert petitioning the agency to conduct a "petition analysis" of certain 1997 through 2000 model year Lexus 300 and 400 series vehicles for "problems of vehicle speed control linkages which results in sudden, unexpected excessive (vehicle) acceleration even though there is no pressure [sic]applied to the accelerator pedal. "in support of his petition, mr. Boddaert cites a number of odi reports concerning vehicle speed control linkages in the subject vehicles. Included amongst the thirty-six reports he cites is one involving a Lexus that "collided with five other cars in the space of one-half mile before it could be stopped. Odi found no data indicating the existence of a defect trend related to the petitioner's allegations at this time. Therefore, there is no reasonable possibility that an order concerning the notification and remedy of a safety-related defect would be issued as a result of granting mr. Boddaert's petition. Consequently, in view of the need to allocate and prioritize NHTSA's limited resources to best accomplish the agency's safety mission, the petition is denied.
Vehicles Affected by this investigation:
  • 1997 Lexus GS400
  • 1998 Lexus GS400
  • 1999 Lexus GS400
  • 2000 Lexus GS400
  • 1997 Lexus LS400
  • 1998 Lexus LS400
  • 1999 Lexus LS400
  • 2000 Lexus LS400

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