▁was ▁informed ▁by ▁the ▁N HT SA ▁in ▁March ▁ 2 0 0 4 ▁about ▁pending ▁investigation ▁over ▁un int ended ▁acceleration ▁compla ints . ▁ ▁According ▁to ▁Sant ucci ▁in ▁his ▁de position , ▁his ▁former ▁N HT SA ▁colle agues ▁decided ▁not ▁to ▁investigate ▁some ▁inc idents ▁involving ▁acceleration ▁last ing ▁longer ▁than ▁ 1 ▁second . ▁ ▁The ▁decision ▁to ▁exclude ▁certain ▁inc idents ▁from ▁the ▁investigation ▁apparently ▁reduced ▁the ▁significance ▁of ▁the ▁issue ▁to ▁the ▁N HT SA ▁at ▁least ▁on ▁paper . ▁However , ▁in ▁ 2 0 0 5 , ▁ 2 0 0 6 ▁and ▁ 2 0 0 8 , ▁Toy ota ▁customers ▁again ▁asked ▁the ▁N HT SA ▁to ▁investigate ▁un control led ▁acceleration ▁from ▁electronic ▁thro tt le ▁controls ▁and ▁power ▁ste ering ▁issues . ▁ ▁Although ▁there ▁were ▁hundreds ▁of ▁compla ints , ▁the ▁N HT SA ▁found ▁no ▁evidence ▁of ▁defect s ; ▁and ▁in ▁every ▁case , ▁Toy ota ▁provided ▁data ▁it ▁said ▁showed ▁no ▁such ▁evidence . ▁ ▁On ▁November ▁ 2 , ▁ 2 0 0 9 , ▁the ▁N HT SA ▁denied ▁a ▁pet ition ▁to ▁re open ▁previously ▁closed ▁un int ended ▁investig ations ▁of ▁Toy ota ▁vehicles , ▁stating ▁they ▁were ▁unlikely ▁to ▁reach ▁any ▁new ▁conclus ions . ▁In ▁February ▁ 2 0 1 0 , ▁however ▁N HT SA ▁was ▁again ▁looking ▁into ▁the ▁electronic ▁thro tt le ▁control ▁systems ▁on ▁Toy ota ▁vehicles . ▁In ▁February ▁ 2 0 1 0 ,