2006 Infiniti QX56 Engine Problems
- Complaints
- 6about this part
- Share
- 8%of 80 total for the year
- Median mileage
- 145,250miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine of the 2006 Infiniti QX56, 8% of the 80 complaints for this model year. Where a mileage was given, the median is 145,250 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.
“My 2006 Infiniti QX56 driver side manifold has cracked 4 times in 6 months. Each time it has cracked I was just driving normal road conditions. I have fixed it 4 times and am curious if this has anything to do with a prior recall on the arm suspension.”
NHTSA complaint #11153647, filed 2018-11, 180,000 miles“The car emergency brake light came on, the vdc, and slip light flashes and the car loses brake power, felt like pads were gone but they were not. Once the car was turned off and back on lights went away and brakes came back. We have had brakes replaced, and problem continued. Also the service engine soon light came on and a mechanic told us we needed new catalytic converters and the service engine soon light is still on and off. Brake issue and light coming on has happened numerous times and it does not make a difference where or what speed. …”
NHTSA complaint #10622082, filed 2014-08, 95,000 miles“While in motion attempted to stop at intersection red light. Vehicle failed to stop. Lights on dash blink, power locks open and close along with windows by self while in motion and stationary. Several occasions vehicle would not start. Dealer states no issues found .”
NHTSA complaint #11104239, filed 2018-06, 123,500 miles“The contact owns a 2006 Infiniti QX56. The contact stated that while driving approximately 65 MPH, the vehicle started to vibrate and decelerated independently. The vehicle stalled without warning. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the radiator failed which caused coolant to mix with transmission fluid and caused the transmission to become inoperable. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 200,000.”
NHTSA complaint #11316095, filed 2020-03, 200,000 milesRelated service bulletins
- 10152503Nov 28, 2018OBD II EVAP Tube Warranty Enhancement The update below was sent out to Regions and Retailers in August of this year. We are re-circulating this update to make regional and…
- 10192427Aug 21, 2014IF YOU CONFRIM An oil leak at the right side block ball plug behind the alternator. ACTION: Use a punch to seat the block ball plug in the hole (refer to the Service Procedure)…
Engine: other model years
Other parts of the 2006 Infiniti QX56
58 complaintsElectrical system
9 complaintsTransmission and drivetrain
7 complaintsFuel system
6 complaintsExterior lighting
4 complaintsOther or unknown
3 complaintsElectronic stability control
2 complaintsEquipment
2 complaintsSuspension
2 complaintsAir bags
1 complaintsEngine cooling
1 complaints
← All problems reported for the 2006 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