Nissan Maxima 2009–2014 — technical service bulletin
Bulletin NTB12071A · NHTSA communication 10192284 · issued Dec 17, 2013
Technical service bulletin
communication type
Engine
component
2009–2014
model years
6
vehicle entries
Official summary
IF YOU CONFIRM A knock noise coming from the # 1 crankshaft main bearing: ACTION 1. Remove the # 1 main bearing (upper and lower halves), per the Service Procedure in this bulletin. 2. Select and install a new # 1 main bearing that is one grade higher (thicker) than the one removed. See this bulletin for further detail.
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.