2005 Infiniti QX56 Engine cooling Problems
- Complaints
- 3about this part
- Share
- 4%of 80 total for the year
- Median mileage
- 81,906miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2005 Infiniti QX56, 4% of the 80 complaints for this model year. Where a mileage was given, the median is 81,906 miles. 1 recall campaign on record is filed under a similar system.
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.
“This letter is in reference to a previous complaint filed with Infiniti consumer affairs on december 3, 2009, regarding my vehicle shutting completely down, stalled out, not moving in the drive or reverse position at a busy intersection on a rainy stormy evening. This occurrence could have caused a serious accident or worse, a fatality. As a result of police assistance and having my vehicle towed directly to the dealership, to date there are no mechanical issues found by the dealer related to my vehicle shutting down at the intersection. …”
NHTSA complaint #10644210, filed 2014-10, 45,000 miles“A 2005 infinity QX56 was being driven at 35 MPH on a two lane road when the automatic transmission cooler ruptured inside the radiator releasing the atf fluid into the radiator. The transmission was losing atf through the radiator's pressure relief points an lost the ability to propel the car within one block. The car was driven into a nearby drive and was unable to move after that point. The rupture could have lead to a crash situation. The second part of incident is the coolant contaminated the transmission and caused a short term friction material failure 4 months later. …”
NHTSA complaint #10544082, filed 2013-09, 118,813 milesRelated recalls
- 10V517000Oct 28, 2010Nissan is recalling certain model year 2004-2006 armada, titan, infiniti qx56 and model year 2005-2006 frontier, pathfinder and xterra vehicles. The…Covers: Infiniti QX56 2004–2006, Nissan Titan 2004–2006, Armada 2004–2006 +3 more
Related service bulletins
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- 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.
- 10185325Dec 10, 2020QX56; REVISED UPPER OIL PAN AND TIMING CHAIN CASE PROCEDURES This bulletin is no longer active. Please discard previous versions of ITB10-055.
- 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…
- 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…
- 10117392Aug 21, 2017INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. The APPLIED VEHICLES and CLAIMS INFORMATION sections have been revised. No…
Engine cooling: other model years
Other parts of the 2005 Infiniti QX56
34 complaintsFuel system
25 complaintsElectrical system
7 complaintsAir bags
5 complaintsExterior lighting
5 complaintsTransmission and drivetrain
5 complaintsSteering
4 complaintsEngine
2 complaintsEquipment
2 complaintsOther or unknown
2 complaintsSuspension
2 complaintsLatches, locks and linkages
1 complaints
← All problems reported for the 2005 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