Affected Component: ELECTRICAL SYSTEM:SOFTWARE

Date Published
NOV 06, 2014
NHTSA TSB #
10109799
TSB Document
Summary
TSB: ECM UPGRADE ? KNOCK IMPROVEMENT - This bulletin provides information related to an ECM software upgrade for all 2012-2013MY 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.