Infiniti G37 2011 — technical service bulletin
Bulletin ITB12023B · NHTSA communication 10192071 · issued Nov 14, 2012
Technical service bulletin
communication type
Power Train
component
2011
model years
1
vehicle entries
Official summary
IF YOU CONFIRM: If the customer reports or has previously reported: * Harsher than expected down shifts when coasting to a stop. * Hesitation/lag when accelerating after coasting. * Hesitation/lag or harsher than expected down shifts when coming to a stop and accelerating again (rolling stop). * Engine rev matching during moderate to heavy braking. NOTE: This is normal ASC (Adaptive Shift Control) operation that can be removed from normal drive mode, but will remain in sport mode. ACTION: CAUTION: There are two different possible ECM reprograms based on which generation of TCM is in the vehicl
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.