Vehicle Data Hub

2011 Infiniti QX56 problems

The 2011 Infiniti QX56 has 96 complaints on file with NHTSA. The largest share (42%) concerns engine. After that come fuel system (21%) and suspension (9%).

At a glance

Complaints
96 filed with NHTSA
Most reported
Engine 42% of complaints
Crashes and fires
0 and 3
Injuries and deaths
0 and 0
Typical mileage
90,000 miles 78 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

  • Engine 42%
  • Fuel system 21%
  • Suspension 9%
  • Drivetrain & axles 4%
  • Electrical system 3%
  • Exhaust system 3%
  • Wipers, windshield & visibility 3%
  • Air bags 2%
  • Cruise control 2%
  • Body & structure 2%

When problems show up

Complaints by mileage, 2011 Infiniti QX56 Complaints by odometer reading in 20,000-mile steps. The median is about 90,000 miles. 0k to 20k miles: 4 complaints 20k to 40k miles: 6 complaints 40k to 60k miles: 2 complaints 60k to 80k miles: 15 complaints 80k to 100k miles: 16 complaints 100k to 120k miles: 14 complaints 120k to 140k miles: 10 complaints 140k to 160k miles: 3 complaints 160k to 180k miles: 5 complaints 180k to 200k miles: 0 complaints 200k+ miles: 3 complaints 040k80k120k160k200k miles Typical: 90,000 miles
Based on 78 complaints that include mileage. 15% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles4
20k to 40k miles6
40k to 60k miles2
60k to 80k miles15
80k to 100k miles16
100k to 120k miles14
120k to 140k miles10
140k to 160k miles3
160k to 180k miles5
180k to 200k miles0
200k+ miles3

What the data shows

Among the 78 complaints that report mileage, the typical (median) problem appeared at about 90,000 miles. For engine specifically, the median reported mileage is about 100,000 miles (31 complaints with mileage).

Safety-related details: 3 complaints mention a fire. Its complaints are less severe on average than those of 88% of model years in our database.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2011 ranks 5th most-complained-about out of 9 model years of the Infiniti QX56 with enough data (28 complaints in that window). It is also covered by 2 safety recall campaigns.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

Timing chain started rattling @ 125,000 miles.. However, my VIN shows no recall for my car. Cats went bad, had to be replaced and now need to be replaced again. Yet no recall on my car. The battery constantly goes dead in the car. I bought a new infinity battery in the car the same thing happened. You can reproduce this problem by sitting in the car listening to the radio for 30 minutes. I was sitting in the car listening radio and the car battery went dead and the car shut off.

Reported at 130,000 miles, November 2020 Fire

Catalytic converter both sides not working (112 k miles). This is a very prevalent (and very expensive) issue in most 2011-2013 qx56 (please see NHTSA complaints and infiniti forum complaints). Is there a recall or will there be one?

Reported at 112,000 miles, August 2018

Less than a year after I got the timing debacle fixed, I get a "check engine light" on 2011 qx56. According to my warranty approved mechanic both cats were gone and were not covered. This complaint is the beginning of my goal of getting assurant or infiniti to own this problem since the combined ca and fed cat warranty is 150k miles. My warranty should cover.

Reported at 102,000 miles, June 2019

Other model years of the QX56

Best and worst years for the Infiniti QX56