2011 Infiniti QX56 engine problems
37 owner complaints filed with NHTSA name the engine on the 2011 Infiniti QX56 — 47% of all complaints for this model year.
What owners report
“Catalytic Converter, A/F Sensor failed on the interstate when I was driving with kids in the car. Took vehicle to the nearest dealer only to be told that this is a known problem with these vehicles and it was going to cost me $3,100 to repair.”
filed Jun 2, 2023
“I'm currently dealing with the timing chain nightmare so many others have had and are having. Of course just as most of the others I'm out of warranty and really frustrated that infiniti hasn't stepped up to the plate to address the problem properly as opposed to renaming the qx56 to qx 80 to save…”
filed Mar 12, 2022
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other QX56 years
| Year | Reports | Share |
|---|---|---|
| 2013 QX56 | 19 | 59% |
| 2012 QX56 | 24 | 42% |
| 2008 QX56 | 3 | 6% |
| 2006 QX56 | 6 | 8% |
| 2005 QX56 | 2 | 3% |
| 2004 QX56 | 5 | 5% |
Other reported problem areas on the 2011 Infiniti QX56
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.