2011 Infiniti QX56 Engine cooling Problems
- Complaints
- 3about this part
- Share
- 4%of 78 total for the year
- Median mileage
- 83,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2011 Infiniti QX56, 4% of the 78 complaints for this model year. Where a mileage was given, the median is 83,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2011 Infiniti QX56. After the vehicle was started, the service engine soon warning indicator illuminated. The vehicle was taken to a dealer where it was diagnosed that the catalytic converter needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.”
NHTSA complaint #10897849, filed 2016-08Related service bulletins
- 10208936Feb 7, 2022DTC 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…
- 10190187Mar 1, 2021INFINITI; 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…
- 10185375Dec 10, 20202005-2015 INFINITI VEHICLES; ECM REPROGRAMMING SERVICE INFORMATION This bulletin is no longer active. Please discard previous versions of ITB15-024.
- 10179558Aug 10, 2020VK56 CONNECTING ROD CAP BOLT SERVICE INFORMATION SERVICE INFORMATION A change has been made to the connecting rod cap bolt service part. The new service part (B in Figure 1) is…
- 10177599Jun 3, 2020These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no…
- 10177598Jun 3, 2020These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no…
- 10152991Jan 29, 2019INFINITI; 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…
- 10145053Aug 17, 2018OBD II EVAP Tube Warranty Enhancement UPDATE August 17, 2018 Please discard earlier versions of this bulletin. The announcement from March 21, 2017 has been revised to include…
- 10145052Aug 17, 2018OBD II EVAP Tube Warranty Enhancement UPDATE August 17, 2018 Please discard earlier versions of this bulletin The announcement from March 21, 2017 has been revised to include: o…
- 10143807Jul 31, 20182004-2018 QX56 AND QX80; ENGINE OIL LEAK AT RIGHT SIDE BLOCK BALL PLUG This bulletin has been amended. The APPLIED VEHICLES section has been updated. No other changes have been…
Engine cooling: other model years
Other parts of the 2011 Infiniti QX56
37 complaintsFuel system
20 complaintsSuspension
9 complaintsOther or unknown
8 complaintsTransmission and drivetrain
4 complaintsElectrical system
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsBody and structure
2 complaintsVehicle speed control
2 complaintsEquipment
1 complaintsSteering
1 complaints
← All problems reported for the 2011 Infiniti QX56
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology