Service bulletin NTB12071A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10192284
Published by NHTSA	2021-05-10
Manufacturer's number	NTB12071A
Manufacturer's date	2013-12-17
NHTSA component	ENGINE

NHTSA's 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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
NISSAN MAXIMA	2009, 2010, 2011, 2012, 2013, 2014

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
NTB17-082E	2022-03-12. Service bulletin. DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB13-097J	2022-03-12. Service bulletin. EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB13-027C	2022-03-12. Service bulletin. CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB15055	2021-05-10. Service bulletin. SERVICE INFORMATION After ECM reprogramming, the Calibration Verification Number (CVN) needs to be automatically calculated prior to State emissions testing (also known as Inspection Maintainence, I/M, or SMOG testing depending upon location). Allowing the vehicle to idle for 22 minutes will allow for faster CVN calculation. It is recommended that customers utilize this method if the vehicle needs to be tested for emissions soon after ECM reprogramming. See this bulletin for further detail.
NTB14109	2021-05-10. Service bulletin. SERVICE INFORMATION Starting with 2010 Model Year, Nissan vehicles have been gradually incorporating a new type of DTC known as Permanent DTC or P-DTC. If a vehicle is equipped with P-DTCs, all emission related DTCs will also set a P-DTC if the MIL is turned ON. A listing of which DTCs that will also set a P-DTC is found in the DTC Index in the EC-Engine Control section of the Electronic Service Manual (ESM). If a DTC repair is performed and the DTC erased, a vehicle may fail an Emission Inspection and Maintenance test if the P-DTC is not also erased. See this bulletin for further detail.
NTB14060A	2021-05-10. Service bulletin. SERVICE INFORMATION A two-piece design front engine mount is currently being used for the applied vehicles listed. A single thunk noise may be heard on the first acceleration of the day from this type of mount and is considered normal operation. The mount has also been designed with built in free-play that is normal. Under normal driving conditions: * A "thunk" noise may be heard on the first acceleration of the day. And * Does not occur again, or at any other time. DO NOT REPLACE THE MOUNT: * If it has free play or a "single event" thunk sound on the first acceleration of the day. This is considered a normal characteristic of this type of engine mount. * If a shift shock condition is present when shifting from park into gear or between any combination of gears. This condition is due to transmissions line pressures and not movement of the mount. NOTE: Refer to the Electronic Service Manual section TM - Transaxle & Transmission for further diagnostic information on shift shock. See this bulletin for further details.
PC263	2021-05-10. Service bulletin. Nissan is conducting a Dealer Service Action to inspect the EVAP hose on certain MY2014 Nissan Maxima vehicles and replace if necessary.
NTB12091A	2021-05-10. Service bulletin. SERVICE INFORMATION Replacement Engine Control Modules (ECMs) for many newer Nissan vehicles are now "Blank" ECMs. Blank ECMs come without software and must be programmed (not reprogrammed) before they will function. See this bulletin for further detail.
NTB14-060c	2019-07-22. Service bulletin. ABNORMAL NOISE FROM FRONT ENGINE MOUNT SERVICE INFORMATION A two-piece design front engine mount is currently being used for the Applied Vehicles listed. A single thunk noise may be heard during the first few accelerations of the day from this type of mount, and is considered normal operation. The mount has also been designed with built-in free play that is normal. Under normal driving conditions: - A thunk noise may be heard during the first few accelerations of the day, And - Does not occur again, or at any other time. DO NOT REPLACE THE MOUNT: - If it has free play or a ?single event? thunk sound during the first few accelerations of the day. This is considered a normal characteristic of this type of engine mount. - Allowable free play (vertical movement) is 5 mm. - If a shift shock condition is present when shifting from Park into gear or between any combination of gears. This condition is due to transmission line pressure and not movement of the mount. - If a whistle type noise is heard. This is caused by a disconnected vacuum line. NOTE: Refer to the appropriate section of the Electronic Service Manual (ESM) related to transaxles for further diagnostic information on shift shock. Warranty claims for front engine mount replacement due to a whistle noise or a mount that has 5 mm or less free play will be denied.
NTB17-082b	2019-02-19. Service bulletin. NISSAN; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin does NOT apply to LEAF vehicles and Titan XD vehicles with V8 diesel engine. This bulletin has been amended. See Amendment History on the last page. Please discard previous versions of this bulletin.