Toyota Corolla 2011–2012 — technical service bulletin
Bulletin CSC-81312015 · NHTSA communication 10052587 · issued Aug 19, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2012
model years
2
vehicle entries
Official summary
Toyota: see document search button for owner letter. Certain vehicles failed to have the positive temperature coefficient (ptc) heater relays installed at time of manufactured. Models 2011-2012 corolla. *pe
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.