Infiniti's flagship is among our top-rated luxury sedans. Handling is agile and the interior is nicely finished. Performance is strong, and fuel economy has improved, even with the power increase. But the engine can sound a bit raspy when revved high. A wide variety of electronic safety technologies is available, though the features range from useful to simply annoying.
Alerts
There are 2 recalls on this vehicle. Learn More.

Reliability

Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey, our reliability history charts give you a rundown on how used vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system.

Overall Reliability
Most Common Trouble Spots
Common Trouble Spot
Common Trouble Spot
The 2011 Infiniti M has been recalled 2 times by NHTSA. View Recalls
Research Years * Redesign year
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Overall Reliability Verdict
NA
NA
NA
NA
NA
NA
NA
POTENTIAL TROUBLE SPOTS
Engine Major
NA
NA
NA
NA
NA
NA
NA
Engine Minor
NA
NA
NA
NA
NA
NA
NA
Engine Cooling
NA
NA
NA
NA
NA
NA
NA
Transmission Major
NA
NA
NA
NA
NA
NA
NA
Transmission Minor
NA
NA
NA
NA
NA
NA
NA
Drive System
NA
NA
NA
NA
NA
NA
NA
Fuel System
NA
NA
NA
NA
NA
NA
NA
Electric System
NA
NA
NA
NA
NA
NA
NA
Climate System
NA
NA
NA
NA
NA
NA
NA
Suspension
NA
NA
NA
NA
NA
NA
NA
Brakes
NA
NA
NA
NA
NA
NA
NA
Exhaust
NA
NA
NA
NA
NA
NA
NA
Paint/Trim
NA
NA
NA
NA
NA
NA
NA
Body Integrity
NA
NA
NA
NA
NA
NA
NA
Body Hardware
NA
NA
NA
NA
NA
NA
NA
Power Equipment
NA
NA
NA
NA
NA
NA
NA
In-car Electronics
NA
NA
NA
NA
NA
NA
NA
Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey for about 329,000 vehicles, our reliability history charts give you a rundown on how 2000 through 2020 vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. NA indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.

Learn more about car Reliability.

Owner Reported Trouble Spots

The Reliability score is based on our latest subscriber survey of 2011 Infiniti M owners. The owner comments describe problems respondents experienced with this vehicle.

In-car Electronics

CD or DVD players, radio, speakers, GPS, communication system (e.g., OnStar), display screen freezes or goes blank, phone pairing (e.g. Bluetooth), voice control commands, steering wheel controls, portable music device interface (e.g., iPod/MP3 player), backup or other camera/sensors.

What Owners Say

Backup or other camera/sensors

"The back up camera housing failed. So the camera worked some time, and some time it was just static"

Anonymous, MD (2011 Infiniti M M37 X 5.6-L V8)

"Identified problem in the wiring harness to the backup camera was replaced under warranty in just a few hours"

Ronald K., GA (2011 Infiniti M M37 3.7-L V6)
Display screen freezes up

"REPLACED UNDER WARRANTY"

Anonymous, CO (2011 Infiniti M M37 X 3.7-L V6)
Hardware replacement

"Infiniti offered a map update for $100. I bought it but it made my computer freeze up and they wouldn't pay to have it repaired. I had to buy a used unit and have it installed myself."

Anonymous, VT (2011 Infiniti M M37 X 3.7-L V6)
In-dash navigation system (GPS)

"Not user friendly or intuitive."

Anonymous, TN (2011 Infiniti M M56 5.6-L V8)
Phone pairing (e.g., Bluetooth)

"doesn't pair consistently or operate properly"

Anonymous, AB (2011 Infiniti M M37 X 3.7-L V6)
Steering wheel controls

"The automatic steering and seat adjustment fails from time to time, it a silly unnecessary system that Infinti should drop"

Anonymous, FL (2011 Infiniti M M37 3.7-L V6)

"The memory steering wheel position/seat position/outside mirror position do not retain their setting. After a week or two it slowly starts to lose it's memory a little at a time, until the position finally bottoms out"

Louis K., CA (2011 Infiniti M M37 3.7-L V6)

"The seat and steering wheel auto position control has a mind of it's own, the window's open randomly when the car is not being used"

Anonymous, FL (2011 Infiniti M M37 3.7-L V6)
Voice control commands

"she kept saying that we were in a flood zone. we had it repaired and all is fine now"

Anonymous, FL (2011 Infiniti M M37 3.7-L V6)

Brakes

Antilock system (ABS), parking brake, master cylinder, calipers, rotors, pulsation or vibration, squeaking, brake failure or wear.

What Owners Say

Normal routine brake wear

"Replaced rear pads at 45000 miles.Not problem, in fact, pretty good wear. Fronts still original"

George C., AZ (2011 Infiniti M M37 3.7-L V6)

"Noise and pulsation if I had to stop from a high speed"

Anonymous, TX (2011 Infiniti M M37 5.6-L V8)

"No problem. Normal wear. Time to replace the brakes."

Anonymous, CA (2011 Infiniti M M56 X 5.6-L V8)
Premature brake wear

"Brakes OK at routine service. 2 months later they are scraping metal and all have to be replaced"

Anonymous, AB (2011 Infiniti M M56 X 5.6-L V8)

"Required $700 brake maintenance at 37000 miles"

Anonymous, IN (2011 Infiniti M M37 X 5.6-L V8)
Pulsation or vibration

"Pulsating brakes on light to moderate braking."

Anonymous, CA (2011 Infiniti M M37 3.7-L V6)

Climate System

Blower (fan) motor, A/C compressor, condenser, evaporator, heater system, automatic climate control, refrigerant leakage, electrical failure.

What Owners Say

Automatic climate control

"failure in air distribution box. cost 3500 to repair. dealer covered 1000 of repair"

Anonymous, AL (2011 Infiniti M M37 3.7-L V6)

"The heating system on the automatic climate control did not fully heat the passenger compartment"

G R., ON (2011 Infiniti M M37 X 3.7-L V6)
Heater system

"Passanger side heater does not work"

Anonymous, SC (2011 Infiniti M M37 3.7-L V6)

"Heater stopped working in the middle of the winter"

Anonymous, MA (2011 Infiniti M M37 X 3.7-L V6)

"Passenger side heater core required replacement"

Anonymous, TN (2011 Infiniti M M37 3.7-L V6)

Fuel System

Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.

What Owners Say

Emission control devices (includes EGR)

"Exhaust manifold mounted catalytic converter failed according to the sensor. Very expensive to replace, due to its unique design."

Anonymous, TX (2011 Infiniti M M37 3.7-L V6)

"Catalytic converter failure. Very expensive unit that is bolt on unit attached near engine"

Anonymous, TX (2011 Infiniti M M37 3.7-L V6)

"did not idle properly (idled at higher than normal rpm). Dealer had to reprogram emission portion of computer"

Anonymous, VT (2011 Infiniti M M56 X 5.6-L V8)

"Warning light on dash always lighted."

Anonymous, TN (2011 Infiniti M M56 5.6-L V8)
Sensors (includes O2 or oxygen sensor)

"same comment as EGR-dealer reprogrammed emission portion of computer"

Anonymous, VT (2011 Infiniti M M56 X 5.6-L V8)

Electric System

Alternator, starter, hybrid battery and related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, distributor or rotor failure, spark plugs and wires failure.

What Owners Say

Headlights

"Left Xenon Headlight burned out"

Anonymous, CA (2011 Infiniti M M37 3.7-L V6)

"wire had shorted out so the headlights didn't work. Minor fix that was covered by Dealer. Could have been worse if it happened at night"

Anonymous, MN (2011 Infiniti M M56 X 5.6-L V8)
Keyless entry

"Dealer didn't tell me remote key had to be 10 feet from car when parked. Replaced about 5 batteries before they informed me"

Anonymous, SC (2011 Infiniti M M37 3.7-L V6)
Tire pressure monitor

"There was a board where all of the warning lights where attached to that had failed and the tire pressure monitors failed"

Kevin W., TN (2011 Infiniti M M37 X 3.7-L V6)

Suspension

Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.

What Owners Say

Power steering leaks

"Steering at low speeds became noticeably more difficult"

Anonymous, CA (2011 Infiniti M M37 3.7-L V6)

"Leaking power steering. Replaced rack and pinion. Could have done nothing and just add fluid as needed but that is not my style."

Anonymous, NJ (2011 Infiniti M M37 X 3.7-L V6)
Power steering pumps and hoses

"Same as previous description"

Anonymous, CA (2011 Infiniti M M37 3.7-L V6)
Steering linkage (includes rack and pinion)

"Steering became very heavy and inaccurate. Dealer replaced entire rack and pinion system under warranty"

Kenneth D., CA (2011 Infiniti M M37 3.7-L V6)

Paint/Trim

Paint (fading, chalking, cracking, or peeling), loose interior and exterior trim or moldings, rust.

What Owners Say

Loose interior trim or moldings

"front door weatherstripping tears. some interior surface wear starting to show."

Stephen C., CA (2011 Infiniti M M37 3.7-L V6)
Paint (fading, chalking, cracking, or peeling)

"paint on the front of the car is pealing off. I have seen other cars with the same problem."

Anonymous, CA (2011 Infiniti M M37 3.7-L V6)
Rust

"Areas that had previously been repaired were rusting again"

Paul N., VT (2011 Infiniti M M37 X 3.7-L V6)

Transmission Minor

Gear selector or linkage, leaks, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission.

What Owners Say

Rough shifting

"Downshift is very bad, it hesitates and is very slow to respond to the acceleration downshift. This is very, very dangerous. They know about this problem and do not do anything about it"

Louis K., CA (2011 Infiniti M M37 3.7-L V6)
Transmission computer

"Transmission was shifting while the car was stopped and occassionally held a gear too long leading to tires slipping under light acceleration."

Anonymous, KY (2011 Infiniti M M37 X 3.7-L V6)
Transmission sensor or solenoid

"transmission will not shift from 6 to 7 gear"

Anonymous, WA (2011 Infiniti M M37 X 3.7-L V6)

Body Integrity

Squeaks, rattles, wind noises, loose or cracked seals and/or weather-stripping, air and water leaks.

What Owners Say

Squeaks or rattles

"Intermittent rattle coming from rear axle while going over minor road imperfections"

Anonymous, FL (2011 Infiniti M M37 3.7-L V6)
Wind noise

"It's just a bit too noisy for that caliber of car."

Anonymous, (2011 Infiniti M M37 3.7-L V6)

Engine Major

Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain or timing belt.

What Owners Say

Engine rebuild or replacement

"Engine and transmission complete replacement. Never worked properly. Car from hell"

Anonymous, ON (2011 Infiniti M M56 X 5.6-L V8)
Timing belt or chain

"Timing chain recall; covered by warranty."

Anonymous, GA (2011 Infiniti M M56 5.6-L V8)

Body Hardware

Power or manual windows, locks and latches, tailgate, hatch or trunk, doors or sliding doors, mirrors, seat controls, safety belts, sunroof, convertible top.

What Owners Say

Mirrors

"Remote drivers side mirror broken. Dealer says it would cost $1400 dollars to fix-1100 just for part. Ridiculous!!!"

Anonymous, SC (2011 Infiniti M M37 3.7-L V6)

Drive System

Driveshaft or axle, CV joint, differential, transfer case, 4WD/AWD components, driveline vibration, traction control, electronic stability control (ESC), electrical failure.

What Owners Say

Electrical failure

"The electrical system controlling the engine timing failed, stalling the car on an entrance ramp to an expressway. Dealer replaced system which was still under drive chain warranty"

Gordon B., SC (2011 Infiniti M M37 3.7-L V6)

Exhaust

Muffler, pipes, catalytic converter, exhaust manifold, leaks.

What Owners Say

Pipes

"RUST"

Dave C., NY (2011 Infiniti M M37 X 3.7-L V6)

Engine Cooling

Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating.

Engine Minor

Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, oil leaks.

Power Equipment

Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, remote engine start, alarm or security system

Compare 2011 Models

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This score shows whether the model had more or fewer problems overall than the average model of that year, calculated from the total number of problems reported by subscribers in all 17 trouble spots.
Recalls
PROVIDED BY
POWER TRAIN
Dec 07, 2020
A broken driveshaft can cause a loss of propulsion, increasing the risk of a crash, or may disable the parking brake, increasing the risk of a rollaway and injury.
Summary:
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.
What should you do:
Infiniti will notify owners, and dealers will replace the driveshaft, free of charge. The recall began February 5, 2021. Owners may contact Infiniti customer service at 1-800-662-6200.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 20V755000
Potential Number of Units Affected: 2708
FUEL SYSTEM, GASOLINE
Feb 24, 2012
FUEL MAY LEAK FROM THE PRESSURE SENSOR, INCREASING THE RISK OF A FIRE.
Summary:
NISSAN IS RECALLING CERTAIN MODEL YEAR 2011-2012 JUKE, INFINITI QX AND INFINITI M VEHICLES. THE FUEL PRESSURE SENSORS MAY NOT HAVE BEEN TIGHTENED TO THE CORRECT SPECIFICATION. AS A RESULT, THE FUEL PRESSURE SENSOR MAY LOOSEN DUE TO HEAT AND VIBRATION CAUSING FUEL TO LEAK.
What should you do:
NISSAN WILL NOTIFY OWNERS, AND DEALERS WILL REPLACE THE FUEL PRESSURE SENSORS, AS NECESSARY, FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 2, 2012. OWNERS MAY CONTACT NISSAN CUSTOMER SERVICE AT 1-800-647-7261.
For more information:
CUSTOMERS MAY CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY: 1-800-424-9153); OR GO TO HTTP://WWW.SAFERCAR.GOV.
NHTSA CAMPAIGN ID Number: 12V069000
Potential Number of Units Affected: 79275
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