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Service bulletin ITB-13-021

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)
TypeService bulletin
NHTSA id10052395
Published by NHTSA2013-07-23
Manufacturer's numberITB-13-021
Manufacturer's date2013-06-13
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

INFINITI: WHILE THE COMPRESSOR FOR THE AIR CONDITIONER IS RUNNING, A WHINNYING OR HUMMING NOISE OR LOW PITCH MOAN SOUND, IS HEARD INSIDE OF VEHICLE, MODEL 2011-12 M37, M56. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Equipment and accessories, Heating and air conditioning

Vehicles listed
INFINITI M372011, 2012
INFINITI M562011, 2012

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
ITB11-046B2022-05-20. Service bulletin. VOLUNTARY SERVICE CAMPAIGN CALL WAITING FUNCTION NAVIGATION UPDATE Service Campaign ID # P1235 is no longer active. • Repair orders opened after this bulletin’s published date are no longer eligible for reimbursement under Campaign ID # P1235. • Discard all previous versions of ITB11-046.
ITB11-047C2021-10-13. Service bulletin. VOLUNTARY SERVICE CAMPAIGN 2011 – 2012 M; BLUETOOTH SOUND QUALITY Service Campaign ID # P1239 is no longer active. • Repair orders opened after this bulletin’s published date are no longer eligible for reimbursement under Campaign ID # P1239. • Discard all previous versions of ITB11-047.
ITB11-051A2021-10-13. Service bulletin. VOLUNTARY SERVICE CAMPAIGN 2011 INFINITI M; REAR WINDOW SUNSHADE Service Campaign ID # P1238 is no longer active. • Repair orders opened after this bulletin’s published date are no longer eligible for reimbursement under Campaign ID # P1238. • Discard all previous versions of ITB11-051.
ITB10-047A2021-08-06. Service bulletin. VOLUNTARY SERVICE CAMPAIGN 2011 INFINITI M37 / M56; 4 WHEEL ACTIVE STEERING Service Campaign ID # P0328 is no longer active. • Repair orders opened after this bulletin’s published date are no longer eligible for reimbursement under Campaign ID # P0328. • Discard all previous versions of ITB10-047.
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ITB15021A2021-05-10. Service bulletin. SERVICE INFORMATION If the clip for the fuel filler cap tether becomes lost or is detached for any reason, it is no longer necessary to replace the fuel filler cap. The clip or "pin" is now available as a separate service part. NOTE - Do not replace the fuel filler cap if only the pin is needed. See this bulletin for further detail.
ITB09015G2021-05-10. Service bulletin. SERVICE INFORMATION Design and process changes have been made to improve battery voltage at dealer receipt. Our goal is to deliver vehicles to customers with a 12 volt battery in excellent condition. Proper dealership storage and maintenance of vehicle 12 volt batteries is essential to insuring good battery operating life and customer satisfaction. Dealers are responsible for maintaining vehicles in their inventory. 12 volt batteries in vehicle inventory should always be kept at a full charge to prevent excessive discharge during storage and so they are ready for delivery to customers at any time. See this bulletin for further detail.
ITB12063C2021-05-10. Service bulletin. IF YOU CONFIRM The customer reports that people on the other end of a phone call cannot hear them. Customer report may include: Voice is choppy or cuts-out, voice sounds distant, voice sounds as if speaking through a tunnel, and/or voice sounds like it's under water. ACTION 1. Reprogram (reconfigure) the Multi AV. 2. Replace the microphone and the map lamp finisher. See this bulletin for further detail.
ITB120692021-05-10. Service bulletin. IF YOU CONFIRM: A shudder condition is present when performing low speed turns when driving on dry roads/surfaces (i.e. parking lot maneuvers) AND The Intelligent All Wheel Drive (AWD) system is NOT engaged by instrument control. ACTION: 1. Replace the breather tube and related hoses for the A/T and transfer assemblies with the ones listed in PARTS INFORMATION. - It is easiest to replace the breather tube and hoses while the transfer assembly is removed. 2. Replace the electric coupling located in the transfer assembly. - Refer to the Electronic Service Manual (ESM) as needed. - See PARTS INFORMATION. See this bulletin for further detail.
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