Service bulletin P6305OL

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	10192828
Published by NHTSA	2021-05-10
Manufacturer's number	P6305OL
Manufacturer's date	2016-05-24
NHTSA component	ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

Infiniti is conducting a Voluntary Service Campaign on certain 2011-2013 QX56 and 2011-2013 M56 vehicles to replace the ?Timing Chain?.

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, Equipment and accessories

Vehicles listed
INFINITI M56	2011, 2012, 2013
INFINITI QX56	2011, 2012, 2013

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

Recalls for the same vehicles and component
26V455000	2026-07-15. EQUIPMENT:OTHER:LABELS
2011436	2011-12-20. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
ITB12-011Q	2024-02-08. Service bulletin. TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-024C	2023-04-04. Service bulletin. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB11-046B	2022-05-20. 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 VOLUNTARY SERVICE CAMPAIGN CALL WAITING FUNCTION NAVIGATION UPDATE Service Campaign ID # P1235 is no longer active.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.
ITB17-042E	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.
ITB13-044J	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.
ITB11-047C	2021-10-13. 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.
ITB11-051A	2021-10-13. 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.
ITB11-031B	2021-08-06. Service bulletin. VOLUNTARY SERVICE CAMPAIGN 2011 QX56; VEHICLE DYNAMIC CONTROL (VDC) REPROGRAMMING Service Campaign ID # P1217 is no longer active. • Repair orders opened after this bulletin’s published date are no longer eligible for reimbursement under Campaign ID # P1217. • Discard all previous versions of ITB11-031.
ITB10-047A	2021-08-06. 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.
ITB11021B	2021-05-10. Service bulletin. SERVICE INFORMATION Temporary tire Flat Spotting is common on New Dealer In-Stock vehicles that have not been occasionally moved. Flat Spotting can occur after the vehicle has been parked (not moved) for a few days, or longer. In most cases it is temporary. In extreme cases it can be permanent. Vehicles should be moved every 30 days, in one direction only, enough to rotate the tires 90° (see Figure 1). Moving vehicles as shown in this bulletin will prevent tire Flat Spotting. See this bulletin for further detail.