Vehicle Data Hub

2011 Infiniti QX56 engine problems

40 complaints about engine have been filed for the 2011 Infiniti QX56, which is 42% of all its NHTSA complaints. It is the most reported problem area for this model year.

At a glance

Complaints
40 42% of this year's complaints
Typical mileage
100,000 miles 31 complaints with mileage
Crashes and fires
0 and 0
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

When engine problems show up

Engine complaints by mileage, 2011 Infiniti QX56 Complaints by odometer reading in 20,000-mile steps. The median is about 100,000 miles. 0k to 20k miles: 0 complaints 20k to 40k miles: 1 complaints 40k to 60k miles: 0 complaints 60k to 80k miles: 7 complaints 80k to 100k miles: 6 complaints 100k to 120k miles: 7 complaints 120k to 140k miles: 5 complaints 140k to 160k miles: 1 complaints 160k to 180k miles: 2 complaints 180k to 200k miles: 0 complaints 200k+ miles: 2 complaints 040k80k120k160k200k miles Typical: 100,000 miles
Based on 31 complaints that include mileage. 3% 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 miles0
20k to 40k miles1
40k to 60k miles0
60k to 80k miles7
80k to 100k miles6
100k to 120k miles7
120k to 140k miles5
140k to 160k miles1
160k to 180k miles2
180k to 200k miles0
200k+ miles2

What the data shows

Of the 31 engine complaints that report mileage, the median is about 100,000 miles, and 3% were reported before 60,000 miles.

None of the engine complaints mention a crash, fire, injury or death.

What owners wrote

Problems with the timing belt chain on newer model infiniti qx56. Problem of car making whistling noise appeared early after purchase and intermittently thereafter but became prominent in july 2011. Appears to be a recurring problem with this vehicle model. Dealer had to replace the entire engine on the vehicle to address the issue.

Reported at 35,000 miles, July 2012

Tl* the contact owns a 2011 infiniti qx56. When the vehicle was started, an unusual noise was heard from the engine and the check engine indicator illuminated. The manufacturer was not made aware of the failure. The failure was not repaired. The VIN was not provided. The failure mileage was approximately 120,000.

Reported at 120,000 miles, November 2018

Other problems reported for the 2011 Infiniti QX56

Engine problems in other years

  • 2013
  • 2012
  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • 2004

Engine problems across all Infiniti models