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Engine coolingPart report

2004 Infiniti QX56 Engine cooling Problems

Complaints
5about this part
Share
5%of 106 total for the year
Median mileage
68,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine cooling of the 2004 Infiniti QX56, 5% of the 106 complaints for this model year. Where a mileage was given, the median is 68,000 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.

“Major coolant issue. Replaced 4 radiators, 1 water pump. All upper and lower hoses. Dealer has had SUV in more than 9 times this year with same issue. While driving coolant smell is in vents. Up the hood and its splashed all over the manifold. Also ABS issue. Braking mech makes metal to metal sound and if u cut off car and turn back on.. It resumes as normal.”

NHTSA complaint #10365725, filed 2010-11, 59,000 miles

“The contact owns a 2004 Infiniti QX56. The contact stated that the vehicle would fail to start up after multiple attempts with several unknown warning lights illuminated on the instrument panel. In addition, he stated that the vehicle would intermittently stall while driving at various speeds with several unknown warning lights illuminated on the instrument panel. The contact had taken the vehicle to a dealer where they informed him that his vehicle was not included in NHTSA Campaign Number: 10V517000 (Engine and Engine Cooling). The contact was referred to NHTSA for assistance. …”

NHTSA complaint #11454505, filed 2022-02, 68,000 miles

“The contact owns a 2004 infinity QX56. The contact was driving 50 MPH when the front end of the vehicle began to shake. The vehicle was taken to the dealer who performed a diagnostic that located the failure at the front suspension lower control arms. The vehicle was taken to the local mechanic to have the front lower control arms replaced. The vehicle was repaired. The failure mileage was 110,000 and the current mileage was 119,000. The consumer at his own expense, he had to replace the left and right control lower arms. The consumer stated a recall was issued in may 2010. …”

NHTSA complaint #10432609, filed 2011-10, 110,000 miles

“The contact owns a 2004 Infiniti QX56. While exiting the highway at 50 MPH, the vehicle shut off as if the ignition was turned off. There was no power steering or braking ability. The contact coasted to the side of the road. After approximately 2-3 attempts, the vehicle restarted. The vehicle stopped a second time approximately 2-5 minutes later. The vehicle restarted again. Approximately 20 minutes later, the vehicle shut off for the third time. On the second crank, the vehicle restarted. The contact drove home and called the dealer to schedule a repair appointment. …”

NHTSA complaint #10241966, filed 2008-09, 55,944 miles

Related recalls

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201247%
201134%
200812%
200611%
200534%
200455%

Other parts of the 2004 Infiniti QX56

Brakes
65 complaintsElectrical system
16 complaintsAir bags
10 complaintsFuel system
6 complaintsEngine
5 complaintsVisibility (wipers, defrost, mirrors)
5 complaintsSteering
4 complaintsBody and structure
4 complaintsTransmission and drivetrain
4 complaintsOther or unknown
3 complaintsSeats
3 complaintsSuspension
3 complaints

← All problems reported for the 2004 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