The Department of Transportation released results from an unprecedented ten-month study of potential electronics-based causes for unintended acceleration in Toyota vehicles. NHTSA launched the study last spring at the request of Congress, and enlisted National Aeronautics and Space Administration (NASA) engineers with expertise in areas such as computer-controlled electronic systems, electromagnetic interference, and software integrity to conduct new research into whether electronics systems or electromagnetic interference played a role in alleged incidents of unintended acceleration. (Read the press release)
Note: Since public release of the NHTSA and NASA reports on February 8, 2011, the agency has revised its redactions to the reports to release certain material previously deemed confidential under 49 U.S.C. § 30167. The NHTSA and NASA reports currently on this web page, which were posted April 15, 2011, replace the ones posted previously and contain the revised redactions.
NHTSA Report on Toyota Unintended Acceleration Investigation In March 2010, NHTSA enlisted the support of NASA in analyzing the Toyota electronic throttle control (ETC) system to determine whether it contained any vulnerabilities that might realistically be expected to produce unintended acceleration (UA) in a consumer’s use of those vehicles. NASA did not find an electronic cause of large throttle openings that can result in UA incidents. NHTSA did not find a vehicle-based cause of those incidents in addition to those causes already addressed by Toyota recalls.
This report presents NHTSA's studies and findings concerning UA in vehicles manufactured by Toyota. It should be read in conjunction with the report issued by NASA concerning the ETC system in Toyota vehicles.
NHTSA Executive Summary
NHTSA Full Report
NASA Report on Toyota Unintended Acceleration Investigation
NHTSA requested the NASA Engineering and Safety Center (NESC) to study unintended acceleration involving...
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