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Service bulletins for the 2011 Infiniti QX56

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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
ITB13-052E2024-06-28. Service bulletin. ELECTRICAL SYSTEM. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-006D2024-06-28. Service bulletin. ELECTRICAL SYSTEM. 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.
ITB10-029C2024-06-14. Service bulletin. ELECTRICAL SYSTEM. CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-024B2022-05-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION; AIR BAGS. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB11-046B2022-05-20. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). VOLUNTARY SERVICE CAMPAIGN CALL WAITING FUNCTION NAVIGATION UPDATE Service Campaign ID # P1235 is no longer active.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.
ITB13-052D2022-03-12. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; ELECTRICAL SYSTEM. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-006C2022-03-12. Service bulletin. ELECTRICAL SYSTEM. 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.
ITB10-029B2022-02-09. Service bulletin. ELECTRICAL SYSTEM. CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB160052021-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE INFORMATION The Intelligent Keys used on the various Infiniti vehicles may not be interchangeable between models and years. See this bulletin for further detail.
ITB11042D2021-05-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. IF YOU CONFIRM The customer states HomeLink will not operate or has improper operation. ACTIONS 1. To significantly reduce unnecessary repairs, make sure: a. The vehicle is not in "Transit Mode" (if equipped). - Not in Transit Mode: With the turn signal switch is in the OFF (center) position, turn the ignition from OFF to ON. If the turn signal indicators stay OFF (do not illuminate), the vehicle is not in Transit Mode. b. The "Extended Storage Switch" (if equipped) is in the "Customer Delivery" position (pushed in). - The Extended Storage Switch is located on the fuse block that is located in the interior of the vehicle. 2. Confirm the customer is familiar with the HomeLink programming procedure located in the vehicle?s owner?s manual. 3. Test HomeLink operation with special tool HomeLink Transmitter Tester J-41540. See this bulletin for further detail.
ITB140562021-05-10. Service bulletin. ENGINE; ELECTRICAL SYSTEM. SERVICE INFORMATION Starting with 2010 Model Year, Infiniti 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.
ITB140552021-05-10. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. SERVICE INFORMATION If a customer describes lack of power or poor acceleration, perform the following checks before attempting any repair: * Check for stored DTCs. * Check if the driver is resting their left foot on the brake pedal while accelerating. Advise the customer not to rest their foot on the brake while accelerating. * Use CONSULT-III plus in Engine Data Monitor to check operation of the brake lamp circuit signal. Monitor the brake switch during the incident; it should be "OFF". Please see this bulletn for further details.
ITB10058A2021-05-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE. IF YOU CONFRIM An oil leak at the right side block ball plug behind the alternator. ACTION: Use a punch to seat the block ball plug in the hole (refer to the Service Procedure). See this bulletin for further detail.
ITB10029A2021-05-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. SERVICE INFORMATION Related to communication codes U1000, U1001, U1002, U1010: - Always diagnose the communication codes first. - When a module reports a U1000 code, it is typically operating normally; however, there is a communication error external to that module on the CAN network. - U1000 indicates an error. V-CAN diagram or CAN Diag Support Monitor provides data to determine the location of the error. See this bulletin for more information.
ITB140202021-05-10. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT. SERVICE INFORMATION Warranty claims coding for repairing wiring harnesses for all Infiniti vehicles has changed. This bulletin gives an outline of the retailer technician?s responsibilities in assisting the retailer claims administrator to properly code a harness repair. Failure to provide correct information may result in claims suspension or rejection. See this bulletin for further detail.
ITB11048B2021-05-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. SERVICE INFORMATION The rear seat headphones have an "A" channel (Ach) and a "B" channel (Bch). The channel switch is on the headphone ear pad case. If a person is sitting on the left side (driver side) of the vehicle and their headphones are set to Bch, the headphones may have static or intermittently operate (cut in and out). OR If a person is sitting on the right side (passenger side) of the vehicle and their headphones are set to Ach, the headphones may have static or intermittently operate (cut in and out). NOTE: If the headphones are set to the "correct channel" for the seating position, but still have static or do not operate, check the condition of the "AAA" headphone batteries located under the left side headphone cover. Do not replace the headphones for the above issues. See this bulletin for further detail.
ITB08024C2021-05-10. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS. SERVICE INFORMATION Information necessary to service the Supplemental Restraint System (SRS) safely is included in the "RESTRAINTS" section of the Electronic Service Manual (ESM) for each vehicle IMPORTANT: Turn the ignition switch OFF, disconnect both battery terminals, and wait at least 3 minutes before performing any service on the SRS. See this bulletin for further detail.
ITB130522021-05-10. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. SERVICE INFORMATION Intelligent Key (I-Key) systems on the Applied Vehicles use two (2) different Radio Frequencies (RF) that are similar to other wireless devices; 315 MHz and 433 MHz. In the event another wireless device (e.g. aftermarket alarm system) is transmitting at the same time as an I-Key, it can interfere with the I-Key signals being received by the BCM. If there is interference with I-Key signals, the following symptoms may occur: - The I-Key is not detected, causing: - The engine to not start (no response when the Stop/Start button is pressed) - "I-Key System Error" displayed in the instrument cluster - "No I-Key Detected" displayed in the instrument cluster - Intermittent operation of the buttons on the remote (Key FOB). - Intermittent operation of the door request switches. If a vehicle has experienced the above symptoms, or a customer has reported the above symptoms, refer to Supplemental Diagnosis / Information in this bulletin. See this bulletin for further detail.
ITB130422021-05-10. Service bulletin. ELECTRICAL SYSTEM; SEATS. IF YOU CONFIRM: Both seat heaters of the second row seats do not work. AND Fuse # 14 is found open (or "blown"). NOTE: This issue applies to both captain and bench type second row heated seating. ACTION: 1. Repair the right side second row seat: a. Clean off welding spatter on the seat hinge (the cause of harness damage), and then apply protective covering on the seat hinge. b. Repair the damaged seat harness wiring or replace the seat harness as necessary. - For repairs, refer to SERVICE PROCEDURE starting on page 3. See this bulletin for further detail.
ITB13006A2021-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE INFORMATION This TSB is for troubleshooting of CAN Modules with "Diag-On-CAN" Diagnostics. The flow charts below are meant to troubleshoot current CAN DTCs. The flow charts are intended to diagnose one module at a time; repeat the process as needed for additional control units. Please see this bulletin for further details.
ITB98011F2021-05-10. Service bulletin. ELECTRICAL SYSTEM. As part of an enhanced emissions test for Inspection & Maintenance (I/M), some States may require the System Readiness Test (SRT) status be checked. - The SRT is used to indicate whether the engine control module (ECM) has completed self diagnosis of major emissions systems and components. - In these instances the State may require completion of the SRT before permitting the emissions inspection to proceed. Refer to this Bulletin for further details.
ITB130132021-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE INFORMATION Improper adjustment or operation of the ASCD brake switch can cause the Automatic Speed Control Device (ASCD) to "not set" and/or DTC P0605 (ECM) to store. See this bulletin for further detail.
ITB120682021-05-10. Service bulletin. ELECTRICAL SYSTEM:INTERIOR LAMPS/BULBS. SERVICE INFORMATION Occasionally, after a rain or a car wash, customers may notice water drops in the overhanging part of the rear combination lamp lens. - This is a normal condition. - The water drops should disappear over time when the lamp is in a dry environment. - Refer to the images on page 2 of this bulletin for examples of a normal water drop condition. - Do not replace any parts for this condition. See this bulletin for further detail.
ITB13-052C2021-05-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended to update the Applied Vehicles. No other changes were made. Please discard previous versions of this bulletin.
ITB17-015B2021-05-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. NAVIGATION SYSTEM REBOOTS WHEN SXM TRAFFIC IS ENABLED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.