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Service bulletins for the 2012 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
REVISION1-P63052017-02-09. Service bulletin. ENGINE. "TIMING CHAIN VOLUNTARY SERVICE CAMPAIGN THE ANNOUNCEMENT FROM MAY 6, 2016 HAS BEEN REVISED TO REFLECT INCREASED FLAT RATE TIMES AND INCLUDES ADDITIONAL QUESTIONS & ANSWERS IN THE FREQUENTLY ASKED QUESTIONS (FAQ) SECTION SUCH AS: - AN EXPLANATION REGARDING THE FLAT RATE TIME CHANGE - WHAT TO DO IF THE RETAILER IDENTIFIES ADDITIONAL PARTS ARE FOUND THAT ARE EXCESSIVELY WORN OR DAMAGED DUE TO THE TIMING CHAIN - WHAT TO DO IF THE CLIENT HAS ALREADY HAD THEIR TIMING CHAIN REPLACED ***** CAMPAIGN SUMMARY ***** INFINITI IS CONDUCTING A VOLUNTARY SERVICE CAMPAIGN ON CERTAIN MY 2011-13 QX56 AND M56 VEHICLES TO REPLACE THE ENGINE TIMING CHAIN, GUIDES, AND CRANKSHAFT SPROCKET. IN SOME OF THE AFFECTED VEHICLES, THE TIMING CHAIN MAY DETERIORATE OVER TIME AND DISTORT. IF THIS OCCURS, CLIENTS WILL HEAR ABNORMAL NOISES FROM THE ENGINE, WHICH MAY SOUND LIKE A RATTLE OR TICKING. IF THE ABNORMAL ENGINE NOISE CONTINUES, OVER TIME THE ENGINE COULD BE DAMAGED. INFINITI IS PERFORMING THIS REPAIR AT NO CHARGE TO AFFECTED CLIENTS FOR PARTS OR LABOR TO HELP ENSURE CONTINUED SATISFACTION WITH THEIR INFINITI VEHICLE. INFINITI IS COMMITTED TO A HIGH LEVEL OF PRODUCT SAFETY, SERVICE AND SATISFACTION FOR INFINITI OWNERS AND IS WORKING WITH ITS RETAILERS TO PROMPTLY ADDRESS THIS ISSUE. ***** WHAT RETAILERS SHOULD DO ***** TO ENSURE CLIENT SATISFACTION, RETAILERS ARE ASKED TO PERFORM THE FOLLOWING REPAIR PROCEDURE PRIOR TO SALE OF PRE-OWNED AND NEW (IF APPLICABLE) INVENTORY."
ITB-13-0092013-04-11. Service bulletin. ENGINE. INFINITI: WHINE NOISE FROM ENGINE AREA. IF THE NOISE DOES NOT INCREASE WITH ENGINE SPEED, THE TIMING CHAIN SYSTEM MAY NOT BE THE CAUSE. *JS UPDATED 10/29/2013 *JS
ITB-12-0772013-02-01. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. INFINITI: STORED IN ECM IS CODE DTC P008B (LOW FUEL PRESSURE TOO HIGH) WITH MIL ON, AND NEEDS REPROGRAMMING. MODEL 2012 QX56. *PE
ITB12-0252012-05-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; ENGINE AND ENGINE COOLING:ENGINE. INFINITI: THE ENGINE FAN IS NOISY AND THERE IS NOTICEABLE LACK OF POWER WHEN ACCELERATING IN TRAFFIC, PARTICULARLY IN HOT WEATHER. *JS
ITB-11-0672011-12-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFINITI: BULLETIN PROVIDES SERVICE PROCEDURES FOR REPROGRAMMING THE ELECTRONIC CONTROL MODULE (ECM). MODELS QX56. *PE

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