2012 Infiniti QX56 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
57 owner complaints analyzed
3 distinct recall campaigns
84,278 mi median reported failure mileage
Scope: 2012 model year. Data snapshot: . 40 complaints include usable failure mileage.
Most common problems
Engine is the most frequently named component, appearing in 24 of 57 complaints (42.1%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Engine operation | 8 | 14.0% |
| Fuel system concerns | 7 | 12.3% |
| Electrical and battery issues | 5 | 8.8% |
| Braking behavior | 4 | 7.0% |
| Steering behavior | 2 | 3.5% |
| Transmission and shifting | 1 | 1.8% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine | 24 |
| Electrical System | 9 |
| Fuel/Propulsion System | 7 |
| Unknown Or Other | 6 |
| Air Bags | 5 |
| Power Train | 4 |
| Suspension | 4 |
| Engine And Engine Cooling | 3 |
Engine: 24; Electrical System: 9; Fuel/Propulsion System: 7; Unknown Or Other: 6; Air Bags: 5; Power Train: 4; Suspension: 4; Engine And Engine Cooling: 3
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 8 |
| 25,000 to 49,999 | 2 |
| 50,000 to 74,999 | 5 |
| 75,000 to 99,999 | 11 |
| 100,000 to 149,999 | 11 |
| 150,000 and above | 3 |
Under 25,000: 8; 25,000 to 49,999: 2; 50,000 to 74,999: 5; 75,000 to 99,999: 11; 100,000 to 149,999: 11; 150,000 and above: 3
75,000 to 99,999 miles has the most reports with usable mileage (11). 17 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2011 | 1 |
| 2012 | 2 |
| 2013 | 2 |
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 7 |
| 2019 | 12 |
| 2020 | 10 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 1 |
| 2026 | 2 |
2011: 1; 2012: 2; 2013: 2; 2015: 4; 2016: 6; 2017: 2; 2018: 7; 2019: 12; 2020: 10; 2021: 4; 2022: 4; 2023: 1; 2026: 2
Pattern summary
Engine leads the component reports. Engine operation appears in 8 complaint narratives. Fuel system concerns appears in 7 complaint narratives. Electrical and battery issues appears in 5 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10456461 · 2012-04-25 (April 25, 2012)
TL* THE CONTACT OWNS A 2012 INFINITI QX56. WHILE DRIVING 60 MPH, THE CONTACT NOTICED THAT THE VEHICLE HAD SUDDENLY STALLED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE DEALER, WHERE THE CONTACT WAS INFORMED THAT THE FAILURE COULD NOT BE DUPLICATED. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 5,000.
Owner-reported narrative. 5,000 miles reported. Look up ODI 10456461 at NHTSA ↗
Owner report 10794965 · 2015-11-19 (November 19, 2015)
TL* THE CONTACT OWNS A 2012 INFINITI QX56. WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS RESTARTED AFTER SEVERAL ATTEMPTS. THE VEHICLE WAS TAKEN TO THE DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 48,000.
Owner-reported narrative. 48,000 miles reported. Look up ODI 10794965 at NHTSA ↗
Owner report 10837035 · 2016-02-18 (February 18, 2016)
THE INFINITI QX56 HAS A KNOWN ISSUE WITH THE TIMING CHAIN ON THE SIDE THAT DRIVES THE FUEL PUMP. THE CHAIN STRETCHES AND BEGINS TO RUB METAL AGAINST METAL. THE COST TO REPAIR IS 4000 - 5000 DOLLARS AND IF YOU DO NOT REPAIR YOU RUN THE RISK OF RUINING THE MOTOR AND THAT IS 17,000. I WAS TOLD BY THE INFINITI MECHANIC IT IS A KNOWN ISSUE AND HE COULD REPAIR THEM IN HIS SLEEP AND THE NEW CHAINS ARE "HEAVER DUTY". INFINITI SAYS IT IS NOT A COMMON PROBLEM SO THEY WILL NOT REPAIR IT OUT OF WARRANTY. SEE THE ATTACHED WEB SITE. JUST THIS ONE SITE …
Owner-reported narrative. 81,000 miles reported. Look up ODI 10837035 at NHTSA ↗
Owner report 11119825 · 2018-08-14 (August 14, 2018)
THERE'S A STRONG ODOR OF GASOLINE ONCE WE PARK THE VEHICLE. I DID SOME SEARCHES ONLINE AND NOTICED THERE WAS A RECALL FOR NISSAN/INFINIT 2012 VEHICLES DUE TO 'THE FUEL PRESSURE SENSORS MAY NOT HAVE BEEN SUFFICIENTLY TIGHTENED DURING PRODUCTION. AS A RESULT, THE FUEL PRESSURE SENSOR MAY LOOSEN WITH VEHICLE USAGE AND CAUSE A FUEL LEAK. A FUEL LEAK IN THE PRESENCE OF AN IGNITION SOURCE COULD CAUSE A VEHICLE FIRE.' THIS INCLUDES 2012 INFINIT QX56 WHICH IS THE VEHICLE WE HAVE BUT WHEN I SEARCH MY VEHICLES VIN, YOUR SITE TELLS ME THERE IS NO RECALL. …
Owner-reported narrative. Look up ODI 11119825 at NHTSA ↗
Owner report 10433059 · 2011-10-27 (October 27, 2011)
THE STANDARD QX56 COMES WITH MORE THAN ADEQUATE ROOM FOR ANY SIZE SHOE ON THE ACCELERATOR PEDAL. LESS THAN 10% OF THE QX MODELS ARE ORDERED WITH THE TECHNOLOGY PACKAGE. THIS PACKAGE INCLUDES A DESIGN FEATURE THAT CAUSES THE GAS PEDAL TO PUSH BACK AGAINST THE OPERATORS FOOT IF THE RADAR SENSES THAT THE VEHICLE IS CLOSING DISTANCE TOO QUICKLY ON THE VEHICLE AHEAD. THE MECHANICAL/ELECTRICAL DEVICE THAT PERFORMS THIS ACTION IS MOUNTED TO THE FIREWALL AT THE TOP OF THE ACCELERATOR PEDAL. I AM 6'3" TALL AND HAVE A SIZE 12 SHOE. THE TIP OF MY SHOE…
Owner-reported narrative. 100 miles reported. Look up ODI 10433059 at NHTSA ↗
Owner report 10924936 · 2016-11-08 (November 8, 2016)
WE HAVE HAD PROBLEMS WITH THE BATTERY SINCE WE BOUGHT THE QX56. SUV'S COMPLETELY DIES AFTER A GLOVE BOX LIGHT, RADIO HAS BEEN PLAYED FOR 20 TO 30 MINUTES, CAR CANNOT BE JUMPED BY TYPICAL CABLES, EVERY TIME WE EITHER HAD TO HAVE A HEAVY DUTY JUMP DONE BY TOW COMPANY OR BATTERY WAS REPLACED BY INFINITI. TIMING CHAIN AND BOTH CATALYTIC CONVERTERS NEED TO BE REPLACED, WITH ENGINE ISSUES. INFINITI HAD SUV FOR ALMOST A MONTH TO FIX ENGINE AND TIMING CHAIN. ENGINE LIGHT STILL COMING ON THEN WE WHERE TOLD THE CONVERTERS NEEDED TO BE REPLACED. $5K …
Owner-reported narrative. 70,000 miles reported. Look up ODI 10924936 at NHTSA ↗
Owner report 10486608 · 2012-11-30 (November 30, 2012)
TL* THE CONTACT OWNS A 2012 INFINITI QX56. THE CONTACT STATED THAT WHILE DRIVING 60 MPH AND SLIGHTLY APPLYING THE BRAKES, THE BRAKES SEIZED, CAUSING THE VEHICLE TO STOP INSTANTLY. THE CONTACT STATED THAT ONCE THE VEHICLE CAME TO A COMPLETE STOP, THE BRAKES RELEASED AND THE VEHICLE FUNCTIONED PROPERLY. THE VEHICLE WAS TAKEN TO A DEALER FOR INSPECTION BUT THEY WERE NOT ABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 7,200.
Owner-reported narrative. 7,200 miles reported. Look up ODI 10486608 at NHTSA ↗
Owner report 11267989 · 2019-10-11 (October 11, 2019)
TL* THE CONTACT OWNS A 2012 INFINITI QX56. THE CONTACT STATED THAT THE VEHICLE LOST POWER AND FAILED TO ACCELERATE. IN ADDITION, THERE WAS A HUMMING NOISE COMING FROM THE ENGINE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO WEST HOUSTON INFINITI (12200 KATY FWY, HOUSTON, TX 77079, [phone removed]) WHERE IT WAS DIAGNOSED THAT THE BRAKES WERE WEARING DOWN. THE CONTACT STATED THAT THE DEALER DID NOT DIAGNOSE THE HUMMING NOISE. THE VEHICLE WAS NOT REPAIRED. IN ADDITION, THE CONTACT STATED THAT THE POWER STEERING PUMP WAS R…
Owner-reported narrative. 70,000 miles reported. Look up ODI 11267989 at NHTSA ↗
Owner report 11515904 · 2023-04-07 (April 7, 2023)
While driving at highway speed, rear of vehicle suddenly became uncontrolled and caused vehicle to swerve dangerously. If a vehicle would have been in the adjacent lane an accident would have occurred. Upon initial inspection, the left rear lower control arm failed catastrophically due to rust rendering the vehicle undrivable. Driver and passenger were put at risk as a result of this incident. Deeper inspection revealed the right rear control arm was also compromised due to rust as well as the two forward mounting points of the modular r…
Owner-reported narrative. Look up ODI 11515904 at NHTSA ↗
Owner report 11174286 · 2019-02-04 (February 4, 2019)
TL* THE CONTACT OWNS A 2012 INFINITI QX56. WHEN THE CONTACT SHIFTED INTO DRIVE AND DEPRESSED THE ACCELERATOR PEDAL, THE VEHICLE WOULD NOT EXCEED 25 MPH. THE CONTACT STATED THE VEHICLE WAS SERVICED PER MANUFACTURER RECALL NUMBER: P6305, BUT THE RECALL REPAIR DID NOT REMEDY THE FAILURE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO STATED THAT THE TIMING CHAIN FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE DEALER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 130,000.
Owner-reported narrative. 130,000 miles reported. Look up ODI 11174286 at NHTSA ↗