Lexus HS 250 Hybrid 2010–2012 — technical service bulletin
Bulletin L-TT-0188-15 · NHTSA communication 10134251 · issued Sep 30, 2015
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010–2012
model years
3
vehicle entries
Official summary
TT: ? Based on current part order allocation, some piston types have been incorrectly identified while undergoing the ZE7 2AZ Oil Consumption repair procedure. ? Replacement pistons for ZE7 should be ordered based on the pistons removed from existing cylinder block and no longer by measurement. ? This Tech Tip includes information regarding production allocation and instructions for identifying piston type on subject engines. This will be published in the next revision of L-SB-0006-15.
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.