Affected Component: VEHICLE SPEED CONTROL

Date Published
JUL 07, 2014
NHTSA TSB #
10132709
TSB Document
Summary
TSB: Some 2012 ? 2014 model year Tacoma vehicles equipped with 1GR-FE engines may exhibit spark knock (detonation) during light acceleration and/or uphill in hot weather (80°F or higher). The Engine Control module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring.