Infiniti Q50 2015–2019 — technical service bulletin
Bulletin ITB16-008C · NHTSA communication 10191925 · issued Apr 1, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015–2019
model years
14
vehicle entries
Official summary
MIL ON WITH P0603 STORED FOR ECM BACK UP CIRCUIT This bulletin has been amended. See AMENDMENT HISTORY on page 3. Please discard previous versions of this bulletin.
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.