infiniti QX56 problems
0 safety recalls. 76 owner complaints. We mapped every trouble spot before you sign the papers.
Solid reliability overall. Common issues are concentrated in a few systems.
Top trouble spots 4 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
ON A FULL TANK OF GAS I AM ONLY ABLE TO GET ABOUT 200 MILES BEFORE EMPTY. I RECENTLY FILLED UP THE GAS TANK AND DROVE 25 MILES AND I HAVE 3/4 OF A TANK OF FUEL LEFT. I MAINLY DRIVE IN THE CITY, BUT THE RECENT 25 MILE EXAMPLE WAS HIGHWAY DRIVING WITH CRUISE CONTROL ON.
IN JUNE 2017, I HAD THE VEHICLE INTO THE DEALERSHIP FOR THE POWER TRAIN RECALL. IN JULY 2017 (87K MILES), I HAD A 420 BANK 1 CAT CODE, AND REPLACED ONE CATALYTIC CONVERTER. IN DECEMBER 2017 (94K MILES), THE 'CHECK ENGINE SOON' LIGHT ILLUMINATED AGAIN, AND THE 430 CODE SHOWS…
TL* THE CONTACT OWNS A 2011 INFINITI QX56. THE CONTACT STATED THAT WHILE DRIVING AT AN UNDISCLOSED SPEED, THERE WAS AN ABNORMAL SOUND COMING FROM THE VEHICLE. THE CONTACT PULLED OVER AND INSPECTED UNDERNEATH THE VEHICLE. THE CONTACT BECAME AWARE THAT THE REAR LOWER CONTROL ARM…
FUEL LINE FAILURE: A FUEL LINE FITTING/CLAMP ON BACK SIDE OF ENGINE (DRIVERS SIDE) IS STREAMING FUEL AT A RATE OF APPROXIMATELY 1/2 CUP PER MINUTE. WHILE BRING MY KIDS TO SCHOOL THIS MORNING, I NOTICED A STRONG SMELL OF GASOLINE, SO I CHECKED UNDERNEATH AND SAW GAS STEADILY…
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Common questions
Is the 2011 Infiniti QX56 reliable?
Mostly yes. With a reliability score of 8.0 out of 10 based on 76 owner complaints filed with NHTSA, the 2011 Infiniti QX56 is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
What's the most common problem on the 2011 Infiniti QX56?
Based on NHTSA records, the most-reported issue is engine, with 32 complaints filed. Average repair cost runs about $3,100 at an independent shop.
What's the most expensive thing that goes wrong?
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Infiniti QX56 has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2011 Infiniti QX56?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 76 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.