Toyota Tacoma 2002–2014 — technical service bulletin
Bulletin T-SB-0044-14 Rev · NHTSA communication 10109402 · issued Oct 14, 2014
Technical service bulletin
communication type
Equipment
component
2002–2014
model years
13
vehicle entries
Official 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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.