2011 Infiniti M56: Reliability Data

Source: NHTSA — 21 complaints
21
Total Complaints
74,925mi
Median Mileage
POWER TRAIN
Top Issue
0
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

35,640 25th Percentile
74,925 Median Mileage
87,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

POWER TRAIN
6
ENGINE
4
ELECTRICAL SYSTEM
3
AIR BAGS
2
SEAT BELTS
1
ELECTRONIC STABILITY CONTROL (ESC)
1
STEERING
1
SUSPENSION
1
SERVICE BRAKES
1
UNKNOWN OR OTHER
1

Severity Assessment

0
Crashes
0
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"WE HAVE BEEN TRYING TO RESOLVE THIS PROBLEM THROUGH INFINITI SERVICE CENTER SINCE WE BOUGHT THE CAR 10 MONTHS AGO WITH ONLY 28K MILES. THE VEHICLE HAS SEVERE HESITATION WHEN ATTEMPTING TO ACCELERATE IMMEDIATELY AFTER SLOWING OR STOPPING. ON SEVERAL OCCASIONS WHEN STEPPING ON THE GAS TO MAKE A LEFT..."
"TL* THE CONTACT OWNS A 2011 INFINITI M56X. THE CONTACT STATED THE VEHICLE FAILED TO START. THE CONTACT WAS ABLE TO START THE VEHICLE. HOWEVER, SHORTLY AFTER THE BATTERY DIED, THE LIGHTS FAILED AND THE VEHICLE AUTOMATICALLY LOCKED, LEAVING THE CONTACT TRAPPED IN THE VEHICLE. THE VEHICLE WAS TAKEN TO ..."
"MY SOLENOID SWITCH WENT BAD ON ME AND NEEDED TO BE REPLACED, TOOK IT TO THE INFINITI DEALERSHIP AND THEY CORRECTED THE PROBLEM SO I THOUGHT UNTIL OCT 13 WHEN I KEPT HEARING THIS NOISE COMING FROM MY HOOK LIKE A SQUEALING NOISE.. TOOK IT BACK TO THE DEALERSHIP AND FOUND OUT IT WAS THE TIMING CHAIN, W..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28