2011 Infiniti QX56 engine problems
The 2011 Infiniti QX56 has 39 engine complaints filed with NHTSA — 41% of the year's total, and up sharply from the prior model year.
39
Engine complaints
41%
Share of year
0
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“TL* THE CONTACT OWNS A 2011 INFINITI QX56. AFTER THE VEHICLE WAS STARTED, THE SERVICE ENGINE SOON WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE CATALYTIC CONVERTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT…”
Common questions
How many engine complaints does the 2011 Infiniti QX56 have?
NHTSA has 39 complaints about the 2011 Infiniti QX56 engine — 41% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.