TIMING CHAIN FAILURE AND ALSO CATALYTIC CONVERTERS FAILED.
2011 Infiniti QX56
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2011 Infiniti QX56 do not stand out strongly from the model-year median of 55.
About this comparison →How this year compares
Owner complaints by model year
Compare all QX56 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
62 reports with mileage · 16 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 37 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel/propulsion System. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Suspension. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
78 reportsCATALYTIC CONVERTER ISSUES CAUSING THE CHECK ENGINE LIGHT TO COME ON
TL* THE CONTACT OWNS A 2011 INFINITI QX56. WHILE OPERATING THE VEHICLE AND DEPRESSING THE ACCELERATOR PEDAL, A SQUEALING AND CLAPPING TYPE NOISE WAS HEARD FROM THE ENGINE COMPARTMENT. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (COULTER INFINITI, 6225 EAST TEST DR., MESA, AZ 85206) WHERE IT WAS DIAGNOSED THAT THE TIMING CHAIN WAS …
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TL* THE CONTACT OWNS A 2011 INFINITI QX56. WHILE OPERATING THE VEHICLE AND DEPRESSING THE ACCELERATOR PEDAL, A SQUEALING AND CLAPPING TYPE NOISE WAS HEARD FROM THE ENGINE COMPARTMENT. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (COULTER INFINITI, 6225 EAST TEST DR., MESA, AZ 85206) WHERE IT WAS DIAGNOSED THAT THE TIMING CHAIN WAS FAULTY. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 78,000.
CATALYTIC CONVERTER BOTH SIDES NOT WORKING (112 K MILES). THIS IS A VERY PREVALENT (AND VERY EXPENSIVE) ISSUE IN MOST 2011-2013 QX56 (PLEASE SEE NHTSA COMPLAINTS AND INFINITI FORUM COMPLAINTS). IS THERE A RECALL OR WILL THERE BE ONE?
MY VEHICLE NEEDS TWO CATALYTIC CONVERTERS REPLACED IN ORDER TO PASS SMOG. INFINITI DEALER WANTS $5600 TO MAKE THIS REPAIR! THIS IS A COMMON PROBLEM FOR THIS VEHICLE AND SHOULD BE A RECALL ITEM.
THE SERVICE ENGINE SOON LIGHT CAME ON, AND I BROUGHT THE VEHICLE TO HOLMON INFINITI IN MAPLESHADE, NJ WHERE I PURCHASED THE VEHICLE. THE DIAGNOSIS WAS A BANK 2 CATALYTIC CONVERTOR FAILURE. I HAD IT REPLACED AT A COST OF $2,661.79 ON THURSDAY MARCH 29, 2018. ON SATURDAY MARCH 31, 2018, THE BANK 1 CATALYTIC CONVERTOR FAILED. I…
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THE SERVICE ENGINE SOON LIGHT CAME ON, AND I BROUGHT THE VEHICLE TO HOLMON INFINITI IN MAPLESHADE, NJ WHERE I PURCHASED THE VEHICLE. THE DIAGNOSIS WAS A BANK 2 CATALYTIC CONVERTOR FAILURE. I HAD IT REPLACED AT A COST OF $2,661.79 ON THURSDAY MARCH 29, 2018. ON SATURDAY MARCH 31, 2018, THE BANK 1 CATALYTIC CONVERTOR FAILED. INFINITI CONSUMER AFFAIRS PROVIDED SOME ASSISTANCE WITH THE SECOND REPAIR. THEY PAID FOR THE PARTS AND I PAID THE LABOR OF $1,385.63. INFINITI CONSUMER AFFAIRS WOULD NOT REIMBURSE ME FOR THE PARTS FOR THE FIRST REPAIR BECAUSE "I ALREADY PAID FOR IT". HAD I KNOWN ABOUT THIS APPARENTLY COMMON PROBLEM, I WOULD NOT HAVE PAID FOR THE FIRST ONE WITHOUT CONTACTING THEM FIRST. IT APPEARS TO BE A KNOWN ISSUE IF THEY WERE WILLING TO GIVE ME ANY ASSISTANCE AT ALL, AND I WOULD THINK THAT WOULD BE EXTENDED TO REPAIRS ALREADY PAID FOR BY THE CONSUMER.
INFINITI HAS NEVER OFFICIALLY ISSUED A RECALL BUT SHOULD HAVE SINCE ALL 2011-2013 INFINITI QX56 HAVE CATALYTIC CONVERTER ISSUES THAT NEED TO BE REPLACED. IT IS COVERED IF YOU REPLACE BEFORE 80K MILES BUT IF YOU DO NOT KNOW ABOUT IT COULD COST YOU $6,000. IT IS AN ISSUE WITH ALL OF THEM THAT INFINITI DOES NOT WANT TO ADDRESS BU…
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INFINITI HAS NEVER OFFICIALLY ISSUED A RECALL BUT SHOULD HAVE SINCE ALL 2011-2013 INFINITI QX56 HAVE CATALYTIC CONVERTER ISSUES THAT NEED TO BE REPLACED. IT IS COVERED IF YOU REPLACE BEFORE 80K MILES BUT IF YOU DO NOT KNOW ABOUT IT COULD COST YOU $6,000. IT IS AN ISSUE WITH ALL OF THEM THAT INFINITI DOES NOT WANT TO ADDRESS BUT SHOULD RECALL AND HELP CUSTOMERS SINCE IT IS AN ERROR THEY MADE IN THESE MODELS WHICH IS NOW FIXED IN NEWER MODELS.
TODAY, I WAS TOLD THAT I HAVE TO REPLACE THE CATALYTIC CONVERTER, WHICH GOING TO COST ME $2,000. I AM THE ORIGINAL CAR OWNER. I RESEARCHED OTHER SITES AND IT APPEARS THERE CATALYTIC CONVERTER ISSUES ON INFINITI 2011 - 2013 QX56 VEHICLES. PLEASE LOOK INTO THESE WEBSITES. THERE SHOULD BE SOME TYPE OF RECALL FOR THESE VEHICLES R…
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TODAY, I WAS TOLD THAT I HAVE TO REPLACE THE CATALYTIC CONVERTER, WHICH GOING TO COST ME $2,000. I AM THE ORIGINAL CAR OWNER. I RESEARCHED OTHER SITES AND IT APPEARS THERE CATALYTIC CONVERTER ISSUES ON INFINITI 2011 - 2013 QX56 VEHICLES. PLEASE LOOK INTO THESE WEBSITES. THERE SHOULD BE SOME TYPE OF RECALL FOR THESE VEHICLES REGARDING THE CATALYTIC CONVERTER. REFER TO WEBSITES: HTTPS://INFINITIFORUM.NET/INFINITI-FORUM/ARCHIVE/INDEX.PHP/T-13616.HTML HTTPS://REPAIRPAL.COM/TIMING-CHAIN-AND-EXHAUST-STAY-AWAY-FROM-INFINIT-QX56-AND-BETTER-STAY-FROM-ALL-INFINITI-CARS--314 HTTPS://FORUMS.EDMUNDS.COM/DISCUSSION/35247/INFINITI/QX56/2013-QX56-CATALYTIC-CONVERTER-PREMATURE-FAILURE HTTP://REPAIRPAL.COM/ABNORMAL-NOISE-FROM-TIMING-CHAIN-AREA-266 PLEASE CONSIDER A RECALLING THE CATALYTIC CONVERTER ON THESE VEHICLES.
CATALYTIC CONVERTERS HAVE FAILED SEVERAL TIMES. LEFT SIDE CATALYTIC CONVERTER REPLACED BY PREVIOUS OWNER IN 2013. RIGHT SIDE CATALYTIC CONVERTER REPLACED BY CURRENT OWNER IN 2016. LEFT SIDE CATALYTIC CONVERTER NEEDS TO BE REPLACED AGAIN. CONTACTED DEALER AND INFINITI CONSUMER AFFAIRS. THEY DID NOT OFFER A SOLUTION.
IN JUNE 2017, I HAD THE VEHICLE INTO THE DEALERSHIP FOR THE POWER TRAIN RECALL. IN JULY 2017 (87K MILES), I HAD A 420 BANK 1 CAT CODE, AND REPLACED ONE CATALYTIC CONVERTER. IN DECEMBER 2017 (94K MILES), THE 'CHECK ENGINE SOON' LIGHT ILLUMINATED AGAIN, AND THE 430 CODE SHOWS THE OTHER CATALYTIC CONVERTER (BANK 2) NEEDS TO BE RE…
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IN JUNE 2017, I HAD THE VEHICLE INTO THE DEALERSHIP FOR THE POWER TRAIN RECALL. IN JULY 2017 (87K MILES), I HAD A 420 BANK 1 CAT CODE, AND REPLACED ONE CATALYTIC CONVERTER. IN DECEMBER 2017 (94K MILES), THE 'CHECK ENGINE SOON' LIGHT ILLUMINATED AGAIN, AND THE 430 CODE SHOWS THE OTHER CATALYTIC CONVERTER (BANK 2) NEEDS TO BE REPLACED. IT SEEMS THE CATS ON THESE VEHICLES ARE TERRIBLE, AND ONCE ONE GOES OUT, THE OTHER FAILS TOO. THIS IS VERY EXPENSIVE...ABOUT $2,000 EACH IN MY CASE. THIS SEEMS TOO COMMON BASED ON THE REVIEWS I'VE READ ONLINE NOW. I FEEL LIKE INFINITI SHOULD COVER THE COST OF REPLACING AT LEAST ONE OF THE CATS, BUT I WAS DENIED ASSISTANCE.
Official recalls
226V455000 · Equipment:other:labels
Jul 15, 2026
Nissan North America, Inc. (Nissan) is recalling certain 2020-2026 Nissan Armada, 2011-2013 Infiniti QX56, and 2014-2027 QX80 vehicles equipped with 22" wheels. The Gross Axle Weight Rating (GAWR) listed on the certification label is incorrect, which can allow the vehicle to be overloaded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
Consequence & remedy
Consequence: An overloaded vehicle can increase the risk of a crash.
Remedy: Dealers will install new labels, free of charge. Additionally, Nissan will mail replacement labels to owners. Interim letters notifying owners of the safety risk were mailed September 2, 2026. Additional letters will be sent once the final remedy is available, anticipated Fall 2026. Owners may contact Nissan customer service at 1-800-867-7669. Nissan's numbers for this recall are R26B1 and P6A13/4. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on July 16, 2026.
20V188000 · Air Bags:frontal:driver Side:inflator Module
Mar 30, 2020
Nissan North America, Inc. (Nissan) is recalling certain 2012-2017 NV Cargo and NV Passenger Van, 2013-2015 Titan and Armada and 2011-2012 Infiniti QX56 vehicles. Due to a manufacturing issue, the air bag inflator may not function properly or may rupture during deployment.
Consequence & remedy
Consequence: An inflator rupture may result in metal fragments striking the driver or other occupants resulting in serious injury or death.
Remedy: Nissan will notify owners, and dealers will replace the front driver air bag inflators, free of charge. The recall began May 7, 2020. Owners may contact Nissan customer service at 1-800-867-7669 or Infiniti customer service at 1-800-662-6200.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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