2011 INFINITI QX56 Owner Complaints

The contact owns a 2011 Infiniti QX56. The contact received notification of NHTSA Campaign Number: 26V455000 (Equipment); however, the part to do the recall repair was not yet available. The contact was unable to rent the vehicle. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

NHTSA ID

11753335

Incident

Jul 28, 2026

Need to know if there are recalls on the Q56 Infinite for the Catalytic Converter Failure. This truck had 2 and this is the second one that seems to be faulty and the truck only had 162000 miles The 1st one faulted at 151000 2024 The Infinite 2011 Q56 has been known for faulty Catalytic Converter Failure and nothing was done to recall and fix. The truck had 2 Catalytic Converters, the 1st one went out in 2024 @ 152000 miles, now it looks like my engine light is back on with error code P0420 Converter malfunction. I searched internet and it was noted that 2011 have had enormous reports about this issue. This doesn’t make since there is no recall when it is noted that the 2011 Q56 had history of faulty Catalytic Converter Failure. This cost to replace and repair is enormous and this type of part replacement repair should not be happening at 152000-162000 miles. This needs to be investigated and recall issued immediately.

NHTSA ID

11751672

Incident

Jul 18, 2026

A subframe is a key structural component of every car. As such, it stands to reason that it should last as long as the car itself. Doing much research on this model suspension and subframes become rusted as I didn’t know this when purchasing making it very unsafe . I experienced being involved in almost 2 accidents. Very dangerous. Subframe split in half and suspension. Something needs to be done as a lot of people are going thru this issue and Infiniti slogan claims “new horizons” by no means new horizon going to heaven by driving their vehicles.

NHTSA ID

11606665

Incident

Jul 17, 2024

Unknown. Timing chain issue. When car is started it makes a noise for about 10 min then goes away

NHTSA ID

11528708

Incident

Jun 21, 2023

Catalytic Converter, A/F Sensor failed on the interstate when I was driving with kids in the car. Took vehicle to the nearest dealer only to be told that this is a known problem with these vehicles and it was going to cost me $3,100 to repair.

NHTSA ID

11525041

Incident

Jun 2, 2023

The rear controls arms and cradle mount were riddled with severe fissures, causing car to sway dramatically. The level of component failure posed a severe safety risk to me. My mechanic was shocked by the amount of failure to these major rear suspension components. I have included photos and receipts for repairs.

NHTSA ID

11510476

Incident

Mar 31, 2021

I'M CURRENTLY DEALING WITH THE TIMING CHAIN NIGHTMARE SO MANY OTHERS HAVE HAD AND ARE HAVING. OF COURSE JUST AS MOST OF THE OTHERS I'M OUT OF WARRANTY AND REALLY FRUSTRATED THAT INFINITI HASN'T STEPPED UP TO THE PLATE TO ADDRESS THE PROBLEM PROPERLY AS OPPOSED TO RENAMING THE QX56 TO QX 80 TO SAVE THEMSELVES, LEAVING CONSUMERS SCRAMBLING WITH EXPENSIVE TIME CONSUMING FIXES TO A KNOWN DEFECT ON THEIR PART. WHERE'S THE ACCOUNTABILITY ON THEIR PART, DO A CERTAIN NUMBER OF PEOPLE HAVE TO DIE OR BE INJURED BEFORE THE CONSUMERS ARE PROVIDED WITH THE PROPER ASSISTANCE? WHO REALLY LOOKS OUT FOR US? A recall was done in 2016 obviously they need to expand the Vin number

NHTSA ID

11456405

Incident

Feb 1, 2022

The contact owns a 2011 Infiniti QX56. The contact stated while driving approximately 25 MPH, the vehicle began to shake and inadvertently stalled. The check engine warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed with needing the high-pressure fuel tank replaced. The vehicle was repaired however, the failure persisted. The manufacturer was not informed of the failure. The failure mileage was approximately 148,000.

NHTSA ID

11453517

Incident

Nov 22, 2021

Mileage

148,000 mi

The contact owns a 2011 Infiniti QX56. The contact stated while driving at various speeds, the vehicle would vibrate violently. Additionally, the vehicle had experienced intermittent power loss and had gone into limp mode. The contact stated that the check engine warning light was illuminated. The vehicle was taken to a local mechanic where it was diagnosed with needing the timing chain replaced. The vehicle was not repaired. The manufacturer was informed of the failure and informed the contact that the VIN was not included in a recall. The failure mileage was approximately 140,000.

NHTSA ID

11447848

Incident

Oct 1, 2021

Mileage

140,000 mi

CODE REF TSBNO. 16-015 TIMING CHAINS REPLACEMENT MANUFACTURER DEFECT AND RECALL

NHTSA ID

11415503

Incident

Jan 13, 2021

Mileage

161,798 mi

WHILE DRIVING MY 2011INFINITI QX56 TO WORK, THE SERVICE ENGINE LIGHT CAME ON AND THE VEHICLE START LOSING POWER AND SHAKING.AFTER CHECKING IT I HAD CODESPOO21,POO87 AND POO90. THE CODES ARE RELATED TO VVT SOLENOID AND HIGH PRESSURE FUEL PUMP.

NHTSA ID

11388665

Incident

Jan 2, 2021

Mileage

147,032 mi

TL* THE CONTACT OWNS A 2011 INFINITI QX56. THE CONTACT STATED WHILE DRIVING 65 MPH, THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE CONTACT CONTINUED DRIVING TO HIS DESTINATION. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER SOUTHWEST INFINITI (10495 SOUTHWEST FWY, HOUSTON, TX 77074, (832) 742-1614) WHERE IT WAS DIAGNOSED WITH NEEDING THE CATALYTIC CONVERTER TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, 3 YEARS LATER HE EXPERIENCED THE FAILURE. THE VEHICLE WAS TAKEN BACK TO DEALER, WHERE IT WAS DIAGNOSED WITH NEEDING THE CATALYTIC CONVERTER TO BE REPLACED FOR A SECOND TIME. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 67,000.

NHTSA ID

11388357

Incident

Jan 1, 2017

Mileage

67,000 mi

TL* THE CONTACT OWNS A 2011 INFINITI QX56. THE CONTACT STATED THAT WHILE DRIVING AT AN UNDISCLOSED SPEED, THERE WAS AN ABNORMAL SOUND COMING FROM THE VEHICLE. THE CONTACT PULLED OVER AND INSPECTED UNDERNEATH THE VEHICLE. THE CONTACT BECAME AWARE THAT THE REAR LOWER CONTROL ARM ON THE PASSENGER'S SIDE WAS FRACTURED IN HALF. THE DRIVER'S SIDE REAR CONTROL ARM ALSO SHOWED EVIDENCE OF A SIMILAR IMMINENT FAILURE. THE VEHICLE WAS TAKEN TO AN INDEPENDNENT MECHANIC WHERE BOTH CONTROL ARMS WERE SCHEDULED TO BE REPLACED. THE PARTS WERE ON ORDER FROM THE MANUFACTURER. LIA INFINITI (860 NEW LOUDON RD, LATHAM, NY 12110, (518) 738-0800) WAS CONTACTED AND INFORMED OF THE FAILURE. THE CONTACT WAS INFORMED THAT THE VIN WAS NOT UNDER RECALL. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 96,500.

NHTSA ID

11378309

Incident

Dec 6, 2020

Mileage

96,500 mi

TIMING CHAIN STARTED RATTLING @ 125,000 MILES.. HOWEVER, MY VIN SHOWS NO RECALL FOR MY CAR. CATS WENT BAD, HAD TO BE REPLACED AND NOW NEED TO BE REPLACED AGAIN. YET NO RECALL ON MY CAR. THE BATTERY CONSTANTLY GOES DEAD IN THE CAR. I BOUGHT A NEW INFINITY BATTERY IN THE CAR THE SAME THING HAPPENED. YOU CAN REPRODUCE THIS PROBLEM BY SITTING IN THE CAR LISTENING TO THE RADIO FOR 30 MINUTES. I WAS SITTING IN THE CAR LISTENING RADIO AND THE CAR BATTERY WENT DEAD AND THE CAR SHUT OFF. THIS IS A HUGE ISSUE, THE QX56 IS A 8 CYLINDER CAR. IT DOES NOT CHARGE VERY EASILY. I HAVE TO CARRY A BATTERY CHARGER IN MY CAR. I HAVE BEEN STRANDED SEVERAL TIMES IN THE LAST YEAR. I HAVE TAKEN THE CAR TO INFINITY AND THEY CLAIM NOTHING IS WRONG WITH THE CAR. SINCE IT IS A BIG CAR THE BATTERY DRAIN QUICKLY.

NHTSA ID

11377860

Incident

Nov 12, 2020

Mileage

130,000 mi

THE AIR SUSPENSIONS OF THIS SUV GOES OUT. THE WHITE PAINT FOR MY 2011 GX56 IS PEELING ALL OVER THE VEHICLE. AND NEEDS TO BE PAINTED ASAP. THIS VEHICLE IS A LUXURY TRUCK THAT'S PEELING BAD.

NHTSA ID

11375068

Incident

Feb 1, 2020

TL* THE CONTACT OWNS A 2011 INFINITI QX56. THE CONTACT STATED WHILE DRIVING 40 MPH, THE ACCELERATOR PEDAL WAS DEPRESSED HOWEVER, THE VEHICLE FAILED TO RESPOND AND DECELERATED WITHOUT WARNING. THE VEHICLE WAS COASTED TO THE SHOULDER OF THE ROADWAY AND TURNED OFF AND RESTARTED HOWEVER, THE FAILURE PERSISTED. THE VEHICLE WAS TOWED TO THE RESIDENCE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 82,000.

NHTSA ID

11372909

Incident

Oct 31, 2020

Mileage

82,000 mi

CATALYTIC CONVERTER FAILURE ON DRIVER'S SIDE RESULTING IN CHECK ENGINE LIGHT.

NHTSA ID

11361434

Incident

Nov 22, 2019

Mileage

69,577 mi

ON JUNE 1ST 2020 I TOOK MY 2011 INFINITI QX56 TO THE SHOP FOR HAVING THE CODE P0087. THE SHOP TOLD ME THAT I SHOULD TAKE IT TO THE DEALERSHIP BECAUSE THE PROBLEMS THE VEHICLE IS HAVING ARE RECALLED UNDER VOLUNTARY SAFETY RECALL CAMPAIGN. WHEN I CALLED MY LOCAL INFINITI DEALERSHIP THEY TOLD ME MY VIN # DOESN'T DOESN'T SHOW AS RECALLED. THEY DEALERSHIP PROVIDED ME WITH THE PHONE NUMBER OF INFINITI CONSUMER AFFAIRS. I CALLED INFINITI AFFAIRS AND TOLD THEM ABOUT MY VEHICLE THEY TOLD ME THAT THEY WERE SORRY BUT MY VIN DOESN'T SHOW UP ON THEIR SYSTEM. THE BOTTOM LINE IS THAT EVERY SINGLE THING THAT I RESEARCHED AND FIND THE WRONG OF THE VEHICLE COMES BACK WITH A VOLUNTARY RECALL. LIKE THE FUEL SYSTEM, TIMING CHAIN, VVT SOLENOIDS, HIGH PRESSURE FUEL PUMP. I USE VEHICLE IN THE CITY AND HIGHWAY.

NHTSA ID

11353447

Incident

Jun 1, 2020

Mileage

121,089 mi

TL* THE CONTACT OWNS A 2011 INFINITI QX56. THE CONTACT STATED THAT WHILE DRIVING AT AN UNDISCLOSED SPEED, THE VEHICLE FAILED TO RESPOND WITH THE ACCELERATOR PEDAL DEPRESSED. THE CONTACT STATED THAT THERE WAS AN ABNORMAL FUEL ODOR COMING FROM UNDER THE HOOD OF THE VEHICLE. UPON INVESTIGATION, THE CONTACT BECAME AWARE OF A POSSIBLE FAILURE WITH THE FUEL RAIL SENSOR HOWEVER, THE VIN WAS NOT INCLUDED. INFINITI OF LUBBOCK (6225 SPUR 327, LUBBOCK, TX 79424, (806)701-4444) WAS CONTACTED AND INFORMED OF THE FAILURE. THE CONTACT WAS INFORMED THAT THE REPAIR COST WOULD HAVE TO BE PAID FOR OUT OF POCKET. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 167,000.

NHTSA ID

11342000

Incident

Jul 8, 2020

Mileage

167,000 mi

WAS DRIVING MY VEHICLE AND FIRST NOTICED A DROP IN FUEL ECONOMY. LATER IT WAS LOSING POWER AND STALLING. GAVE ME P0090 AND P0087 CODES. HAPPENED IN BOTH DRIVING AND STATIONARY POSITIONS. TURNS OUT MY HIGH PRESSURE FUEL PUMP IS BAD.

NHTSA ID

11339323

Incident

Jun 1, 2020

Mileage

24,000 mi

ENGINE IS MAKING LOUD WHINING NOISE AND JERKS. NOISE IS HEARD WHEN THE TRUCK STARTS AND IS ON IDDLE. THERE WAS A SERVICE BULLETIN ISSUED IN 2016 ITB16-015. WE WERE NEVER NOTIFIED OF THIS CAMPAIGN. WHEN CALLING INFINITY CORPORATE THEY DENIED FIXING THE ISSUE BECAUSE THEY COULD NOT SEE THE MAINTENANCE RECORD FOR THE TRUCK SINCE IT WAS NOT TAKEN TO AN INFINITY DEALER. THE TRUCK GETS MAINTENANCE FROM OTHER PLACES LIKE JIFFY LUBE ETC. OUR CLAIM WAS DENIED THEY SAID THE CAMPAGIN EXPIRED IN FEBRUARY 2018.

NHTSA ID

11318253

Incident

Feb 1, 2020

Mileage

100,000 mi

TL* THE CONTACT OWNS A 2011 INFINITI QX56. THE CONTACT STATED THAT WHILE DRIVING ON AN INCLINE APPROXIMATELY 50 MPH, THE VEHICLE LOSS MOTIVE POWER WITH AN ABNORMAL SOUND COMING FROM THE ENGINE COMPARTMENT. THE VEHICLE WAS TOWED TO THE DEALER INFINITI OF GWINNETT, (3090 SATELLITE BLVD, DULUTH, GA 30096), TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE TIMING CHAIN NEEDED TO BE REPLACED. THE CONTACT ALSO STATED THAT THE VEHICLE WAS PREVIOUSLY REPAIRED IN 2016, BY HAYES CHRYSLER/DODGE OF LAWRENCEVILLE LOCATED AT (719 DULUTH HWY, LAWRENCEVILLE, GA 30046), FOR A SIMILAR FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 169,000.

NHTSA ID

11317204

Incident

Jan 22, 2020

Mileage

169,000 mi

TL* THE CONTACT OWNS A 2011 INFINITI QX56. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LIGHT ILLUMINATED UPON START-UP. THE VEHICLE WAS TAKEN TO TWO SEPARATE INDEPENDENT MECHANICS TO BE DIAGNOSED. THE CONTACT WAS INFORMED OF DIAGNOSTIC TROUBLE CODES: P0420- P0430 CATALYST SYSTEM INEFFICIENCY. THE VEHICLE WAS NOT REPAIRED. A LOCAL DEALER WAS NOT CONTACTED HOWEVER, THE MANUFACTURER WAS MADE AWARE OF THE FAILURE, CASE NUMBER: 35634299. THE APPROXIMATE FAILURE MILEAGE WAS 78,000.

NHTSA ID

11297314

Incident

May 1, 2019

Mileage

78,000 mi

ON A FULL TANK OF GAS I AM ONLY ABLE TO GET ABOUT 200 MILES BEFORE EMPTY. I RECENTLY FILLED UP THE GAS TANK AND DROVE 25 MILES AND I HAVE 3/4 OF A TANK OF FUEL LEFT. I MAINLY DRIVE IN THE CITY, BUT THE RECENT 25 MILE EXAMPLE WAS HIGHWAY DRIVING WITH CRUISE CONTROL ON.

NHTSA ID

11291203

Incident

Dec 25, 2019

Mileage

165,000 mi

TL* THE CONTACT OWNS A 2011 INFINITI QX56. WHILE DRIVING 60 TO 65 MPH, THE VEHICLE JERKED AND AN ABNORMAL NOISE WAS HEARD FROM THE ENGINE AREA. ALSO, THE SERVICE ENGINE INDICATOR ILLUMINATED. THE CONTACT HAD TO DECELERATE DUE TO THE NOISE. THE CONTACT DROVE THE VEHICLE TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED, BUT NO FAILURE CODE WAS FOUND INITIALLY. THE MECHANIC RESET THE CODES, TEST DROVE THE VEHICLE, PERFORMED A SECOND DIAGNOSTIC TEST, AND LOCATED FAILURE CODES FOR THE TIMING CHAIN, CATALYTIC CONVERTER, AND EXHAUST SYSTEM. THE MANUFACTURER INFORMED THE CONTACT THAT THE VEHICLE WAS NOT INCLUDED IN THE UNKNOWN MANUFACTURER RECALL FOR THE ENGINE TIMING CHAIN AND CATALYTIC FAILURE. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 200,500.

NHTSA ID

11276857

Incident

Oct 16, 2019

Mileage

200,500 mi