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Service bulletins for the 2011 Infiniti M56

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.

95 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Equipment and accessories are shown. Show all

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ITB16-015b2018-03-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. VOLUNTARY SERVICE CAMPAIGN 2011 ? 2013 QX56 AND M56; TIMING CHAIN Service Campaign ID # P6305 is No Longer Active. -Infiniti Service Campaign Bulletin ITB16-015 for Service Campaign P6305 was originally issued on May 5, 2016. -Service Campaign ID # P6305 is no longer active. -Repair orders opened after February 27, 2018 are no longer eligible for reimbursement under Campaign ID #P6305. -Please discard previous versions of ITB16-015.
ITB18-0032018-02-21. Service bulletin. EQUIPMENT:OTHER:LABELS. REDUCED VEHICLE LOAD CAPACITY LABEL (REGULATORY REQUIREMENT) This bulletin applies to vehicles equipped with dealer installed or VPC installed accessories. SERVICE INFORMATION The National Highway Traffic Safety Administration (NHTSA) requires that any automobile dealer that installs accessories on a vehicle prior to first retail sale must install a special label (?reduced capacity label?) on that vehicle if the total weight of all accessories on that vehicle exceeds 1.5 percent of the vehicle?s gross vehicle weight rating (GVWR) or 100 pounds, whichever is less. This includes accessories that the dealer installs (dealer installed factory accessories and dealer installed aftermarket accessories), and accessories installed at the Vehicle Processing Center (VPC) prior to the vehicle being delivered to the dealer. IMPORTANT: Failure to comply with this requirement may result in penalties imposed by NHTSA. Follow the instructions in this bulletin to help meet these requirements.
P6305 2011-132018-01-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Timing Chain Voluntary Service Campaign - Expiration Notice ***** Campaign ***** INFINITI launched this Voluntary Service Campaign on May 6, 2016 on certain 2011-13 INFINITI QX56 and INFINITI M56 vehicles to offer clients the opportunity to replace the timing chain, chain guides, and crank sprocket at no charge to the client for parts and labor. INFINITI has made multiple attempts to notify clients concerning this service campaign and is now informing them that the campaign will end February 28, 2018. INFINITI wants to inform retailers to open repair orders on or before February 27, 2018 in order to have timing chain replacement covered by this service campaign. Vehicles presented for repair after this date will not be covered by this service campaign and any repair will be performed at client expense if the vehicle?s warranty has expired. ***** What Retailers Should Do ***** 1. Service Comm will deactivate P6305 on any unrepaired VINs on February 28, 2018. - Repair orders must be opened on or before February 27, 2018 - Claims submitted for repair orders opened after this date will be rejected. 2. Retailers should plan their parts inventory needs to align with the end of this campaign. 3. Retailers should submit any open claims for the timing chain replacement under this campaign as soon as possible. INFINITI would like to have all claims submitted by March 14, 2018.
ITB17-0572018-01-29. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. 2011 - 2013 M AND M HYBRID, 2014-2015 Q70 AND Q70 HYBRID; POOR HEATER PERFORMANCE FROM THE PASSENGER SIDE IF YOU CONFIRM With the engine running at full operating temperature and the HVAC set to VENT (face) and 90°F on both sides, the VENT air temperature on the passenger side is more than 10°F colder than the VENT air temperature on the driver side, AND THEN When the HVAC control is adjusted to 60°F on both sides, there is a noticeable change from warm air to cool (A/C) air discharged from VENT on both sides. This confirms proper MIX door operation, NOTE: If the MIX door operation is abnormal, this bulletin does not apply. Refer to ASIST for further diagnostic information. AND No HVAC DTCs are stored. ACTION 1. Drain the engine coolant. 2. Modify the thermostat. 3. Flush the cooling system 3 times with Long Life Coolant. 4. Replace the heater core. 5. Replace the thermostat with gasket.
P63052017-11-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Timing Chain Voluntary Service Campaign - Expiration Notice ***** Campaign Summary ***** INFINITI launched this Voluntary Service Campaign on May 6, 2016 on certain 2011-13 INFINITI QX56 and INFINITI M56 vehicles to offer clients the opportunity to replace the timing chain, chain guides, and crank sprocket at no charge to the client for parts and labor. INFINITI has made multiple attempts to notify clients concerning this service campaign and is now informing them that the campaign will end February 28, 2018. INFINITI wants to inform retailers to open repair orders on or before February 27, 2018 in order to have timing chain replacement covered by this service campaign. Vehicles presented for repair after this date will not be covered by this service campaign and any repair will be performed at client expense if the vehicle?s warranty has expired. ***** What Retailers Should Do ***** 1. Service Comm will deactivate P6305 on any unrepaired VINs on February 28, 2018. - Repair orders must be opened on or before February 27, 2018 - Claims submitted for repair orders opened after this date will be rejected. 2. Retailers should plan their parts inventory needs to align with the end of this campaign. 3. Retailers should submit any open claims for the timing chain replacement under this campaign as soon as possible. INFINITI would like to have all claims submitted by March 14, 2018.
ITB11-005c2017-10-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; WHEELS. WHEEL BALANCING SERVICE INFORMATION This bulletin has been amended. The publication date has been revised to include the latest models and model years. No other changes have been made. Please discard previous versions of this bulletin.
ITB17-0152017-08-01. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. NAVIGATION SYSTEM REBOOTS WHEN SXM TRAFFIC IS ENABLED IF YOU CONFIRM The Navigation system in an Applied Vehicle reboots when SXM Traffic is enabled. NOTE: Perform the steps in this bulletin ONLY if the above condition occurs while the vehicle is in the state of Oregon. ACTION Update the Navigation system software using the DVD shown on page 2.
ITB12-054B2017-02-14. Service bulletin. EQUIPMENT. THIS BULLETIN HAS BEEN AMENDED. THE TITLE AND IF YOU CONFIRM SECTION HAVE BEEN REVISED. NO OTHER CHANGES HAVE BEEN MADE. PLEASE DISCARD PREVIOUS VERSIONS OF THIS BULLETIN.
ITB16-015A2017-02-13. Service bulletin. EQUIPMENT; ENGINE. "VOLUNTARY SERVICE CAMPAIGN 2011 – 2013 QX56 AND M56; TIMING CHAIN THIS BULLETIN HAS BEEN AMENDED. THE CLAIMS INFORMATION SECTION HAS BEEN REVISED. NO OTHER CHANGES HAVE BEEN MADE. PLEASE DISCARD PREVIOUS VERSIONS OF THIS BULLETIN. INTRODUCTION INFINITI IS CONDUCTING A VOLUNTARY SERVICE CAMPAIGN ON CERTAIN 2011-2013 QX56 AND 2011-2013 M56 VEHICLES TO REPLACE THE “TIMING CHAIN”. THIS SERVICE WILL BE PERFORMED AT NO COST TO THE CUSTOMER FOR PARTS OR LABOR."
P63052017-02-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. WARRANTY CLAIMS FOR THIS ACTIVITY ARE TEMPORARILY SUSPENDING AND WILL INDICATE THE OPERATION CODES FOR QX56 TIMING CHAIN REPAIRS ARE NOT VALID. INFINITI IS CURRENTLY REVISING THE FLAT RATE TIMES FOR THIS CAMPAIGN. INFINITI EXPECTS TO HAVE THE STUDY COMPLETED THE WEEK OF JULY 4TH, AND WILL ISSUE A COMMUNICATION WHEN QX56 CLAIMS SUBMISSION CAN RESUME. INFINITI REQUESTS RETAILERS REFRAIN FROM SUBMITTING QX56 CLAIMS UNTIL AFTER NEXT WEEK’S ANNOUNCEMENT TO AVOID DELAYS IN PROCESSING. INFINITI EXPECTS TO ADDRESS THE REVISED FLAT RATE TIME AND HOW PREVIOUSLY PAID CLAIMS WILL BE ADJUSTED, IF APPLICABLE, IN NEXT WEEK’S ANNOUNCEMENT.
EC12-010F2016-07-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
ITB-13-0212013-07-23. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. 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 summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.