NHTSA lists 2 safety recalls and 18 owner complaints for the 2011 Infiniti M56. Most complaints involve power train (8) and engine (4). The EPA rates it 19 mpg combined, and NHTSA gives it 4 stars overall.
Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.
Nissan North America, Inc. (Nissan) is recalling certain 2011-2013 Infiniti M56, 2012-2013 M35 Hybrid, and 2014 Q70 and Q70 Hybrid vehicles. These models, equipped with 2WD and with a hybrid or VK56 powertrain, have a driveshaft that may break.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“The contact owns a 2011 Infiniti M56. The contact received a recall notification for NHTSA Campaign Number: 20V755000 (Power Train) however, the dealer informed the contact that the parts for the recall repair were not yet available. The contact stated that while making a left turn from a complete stop, the accelerator pedal was depressed but the vehicle drove 2 MPH and stalled. There were no warning lights illuminated. The contact stated that as he released the accelerator pedal and depressed it again, he was able to drive the vehicle. The dealer was notified of the failure. The contact stated that the failure had been reoccurring while driving. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue and advised the contact that they would follow up with the dealer. The contact was awaiting a call back from the manufacturer. The vehicle was not diagnosed or repaired. The approximate failure mileage was 95,000. Parts distribution disconnect.”
“I love this vehicle but it's suddenly started having a rough idle and with a scan tool detects multiple misfires and several codes due to timing, in which case the timing chain has been worn out call the dealership to see if the timing chain recall for the m56 was done to my car they said it was VIN specific now I am stuck with a vehicle that is very dangerous to be driven.”
“Front passenger airbag occupancy sensor fails leading to inactivation of front passenger airbag. Dealership says that a repair solution is not available.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| M56 Auto (S7), 8 cyl, 5.6 L · Rear-Wheel Drive | 16 | 25 | 19 | $4,200 | 468 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
2 safety recalls as of Oct 28, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 18 complaints with NHTSA. The most-cited components are power train (8), engine (4), air bags (3). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2011 Infiniti M56 at 19 mpg combined, depending on engine and drivetrain (1 version rated).
NHTSA's New Car Assessment Program gives the 2011 Infiniti M56 4 out of 5 stars overall.