Affected Component: ELECTRICAL SYSTEM:SOFTWARE

Date Published
MAY 06, 2013
NHTSA TSB #
10090436
TSB Document
Summary
TSB: ECM UPGRADE - KNOCK IMPROVEMENT - THIS BULLETIN PROVIDES INFORMATION RELATED TO AN ECM SOFTWARE UPGRADE FOR ALL 2012-2013 MY RIO (UB) 1.6L VEHICLES WHICH MAY EXHIBIT A KNOCKING OR PINGING CONCERN UNDER MODERATE OR HEAVY ACCELERATION, ESPECIALLY WHILE DRIVING ON AN INCLINED ROAD.