My wife was driving home from work, said brake is failing, makes loud grindy, rattling noise when brake is applied. Once the car is turn off and back on, everything is back to normal. When I got home, i took the wheels off to check everything was ok, pads were almost new, which I replaced last year. Drove around for 10 miles no problem. This is a serious safety issue which Nissan/Infiniti should take care of.
The worst 2004 Infiniti QX56 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes65
- Electrical16
- Airbags10
- Engine10
- Fuel system6
- Visibility5
- Body4
- Steering4
- Transmission4
- Acceleration3
- Seats3
- Suspension3
- Driver assistance2
- Seat belts2
- Locks1
Specific symptoms reported on the 2004 Infiniti QX56
Grinding brakes 18ABS 12Brake failure 10Fuel gauge 6Shudder 6Airbag light 5
Recalls 1
Engine and engine cooling
- What is wrong
- Nissan is recalling certain model year 2004-2006 armada, titan, infiniti qx56 and model year 2005-2006 frontier, pathfinder and xterra vehicles. The intelligent power distribution module (ipdm) assembly contains an engine control module (ECM) relay that has a diode for electrical current noise reduction. The ECM relay may allow silicon vapor to form and, over time, the silicon evaporates from the diode molding which causes silicon oxide to develop on the ECM relay contact due to arcing.
- Risk
- This could cause engine stalling increasing the risk of a crash.
- Remedy
- Dealers will replace the ECM relay inside the ipdm assembly. This service will be performed free of charge. The safety recall began on december 6, 2010. Owners may contact nissan at 1‑800‑647‑7261.
Recall number 10V517000 · Recall details
Technical service bulletins for the 2004 Infiniti QX56 107
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Wiring harness repair information
- Voluntary service campaign body control module sub-harness
- Certification label and VIN plate replacement service information
- Intelligent key not detected / engine will not start
- Removing foreign material from the window glass
- Window glass warranty information
- Windshield cracking
- Wheel bearing collision damage
- DTC P0456 caused by evap leak at vent control valve o-ring
- Infiniti; front sonar parking sensor service information
2004 Infiniti QX56 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 5.6L 8‑cyl | RWD | 12 | 18 | 14 |
| 5.6L 8‑cyl | 4WD | 12 | 17 | 14 |
What 2004 Infiniti QX56 owners say
Most recent owner complaints, unedited.
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 the federal safety agency Campaign Number: 10V517000 (Engine and Engine Cooling). The contact was referred to the federal safety agency for assistance. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 68,000.
I was on the highway driving my family from texas to north carolina when I ran into rush hour traffic long the way. I applied the brake to slow the vehicle down, then suddenly the steering wheel started shaking, there was a lound gridding noise as if the engine about to fallout and my brake didnot hold immediately when applied.
The emc relay is bad. I have a letter saying it was a recall.. As I was driving the car just shut off. If you waited a little while it would start up again but it seemed that when it got hot it would shut down again. It cost me 102.00 for tow truck and the dealership is charging me 160.00 an hour to check what it is. They say there is no recall but I have letter in front of me.
Takata recall paint is fading in different places clear coat has faded away this has happened over the pass couple of years
The vehicle's brake warning light keeps coming on. Rotors are fine. Brake fluid level is high. Yet, when I apply my foot on the brake, the warning light comes on and there is also a bad sound on the front wheels that sounds like metal to metal (there is a vibration). Once I pull over and turn the vehicle off for a minute or so, I am able to continue. However, the warning light comes back on moments later. This is getting very dangerous as it may trigger me to rear end the vehicle in front of me. The problem has been happening for the past eight months. However, it has been getting worst. The cruise control light also comes and stays on. Please help.
Tl* the contact owns a 2004 infiniti qx56. While driving various speeds, the vehicle suddenly shut off. In addition, the fuel gauge and other gauges on the instrument cluster displayed inaccurate information. The vehicle was taken to a local dealer (infiniti of elk grove, 8586 laguna grove dr, elk grove, ca) where it was diagnosed that the electronic control unit was faulty and needed to be replaced; however, the part was no longer available. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 167,000.
On two separate occasions while the car was moving in a dry parking lot and applying my brakes, my ABS brakes kicked on for no reason and the car was difficult to control and stop. The light came on as well and I heard alot of grinding. This was very scary as both times I had my children in the car. The only way to reset ABS was to turn off vehicle. I am so afraid that this will happen again and I may not be able to stop. I am now afraid to drive and am thinking about selling it because I feel it is not safe to drive.
I get a brake light and a slip light sometimes when applying the brakes. Makes an awful noise and sometimes the brakes fail to operate. I have to turn the car off and restart it to reset something and then its fine for a few days and comes back. It is very scary. Others who have the same vehicle have complained of the same thing. Saying they think the brake master cylinder is defective. I have also heard of people crashing their SUV because of this. This happens just when applying the brakes. I see this a lot in the forums and wonder why they haven't recalled this dangerous defect. This has been happening numerous times in the past 5 years.
Radiator cracked. Interim with transmission fluid. $5,000 transmission rebuild.
Compare the 2004 Infiniti QX56
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Questions about the 2004 Infiniti QX56
Is the 2004 Infiniti QX56 reliable?
Owners have filed 106 complaints about the 2004 Infiniti QX56, 1.9 times a typical QX56 model year.
What is the 2004 Infiniti QX56 year score?
The 2004 Infiniti QX56 scores 51 out of 100 (below average). The score compares it with the other model years of the Infiniti QX56: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2004 Infiniti QX56?
Brakes, with 65 complaints, typically around 82,100 miles. Next is electrical (16).
How many recalls does the 2004 Infiniti QX56 have?
1 recall, covering engine and engine cooling.
What year does the Infiniti QX56 have bad brakes?
The Infiniti QX56 model years with the most brakes complaints are 2004 (65 complaints), 2006 (58 complaints) and 2005 (34 complaints).
What gas mileage does the 2004 Infiniti QX56 get?
Official estimates for the 2004 Infiniti QX56 range from 14 mpg combined. The most efficient version (5.6L 8-cyl, RWD) gets 12 city and 18 highway.
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