There are 4 stored owner reports matching the suspension leading-label group for the 2017 Infiniti Q50 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)I experienced an ongoing grinding/rattling noise from the wheel/brake area. The vehicle was serviced multiple times by a franchised dealer, which diagnosed the issue as brake-related and performed brake repairs. The noise was not resolved, and the vehicle was returned in the same condition. Shortly after service, an independent mechanic discovered a cracked/broken brake pad installed on the vehicle. Due to safety concerns, the manufacturer authorized inspection at a separate franchised dealership under different ownership. That inspection confirmed aftermarket brake pads, rotors, and related components of unknown origin installed on both the front and rear, missing OEM hardware, improper lubrication, and wheel bearing issues contributing to the noise. The inspecting dealer documented that the braking system must be returned to OEM specifications before safe operation and further diagnosis could continue. Despite this, the manufacturer has declined to require OEM remediation, and the vehicle continues to operate with unauthorized aftermarket brake components. The grinding noise has continued and has since shifted toward the rear. The condition is reproducible, documented by video, and confirmed by independent inspection. I believe the vehicle was returned to service in an unsafe condition involving a critical braking system.
Hydraulic Bushing of the Lower Control Arm Leaking, very common problem amongst Q50 models.
I PROCEEDED FROM A STOP SIGN AND ONCE I MADE IT TO MY DESTINATION WHICH WAS LESS THAN A 1/4 MILE THE CAR STARTED SPUTTERING ONCE I PULLED IN THE YARD. THE CHECK ENGINE LIGHT CAME ON, SO I LEFT TO GO BACK TO MY HOUSE AND IT STARTED ACTING FINE. I COULD SMELL FULL IN THE CABIN. I WAS COMING HOME ONE NIGHT AND IT DID THE SAME THING EXCEPT THE ENGINE LIGHT DIDN'T COME ON. THIS IS THE SECOND Q50 THAT HAS DONE THIS. THE DEALERSHIP HAD TO COME GET THE FIRST ONE BECAUSE IT WOULDN'T CRANK.
TL* THE CONTACT OWNS A 2017 INFINITI Q50. THE CONTACT STATED THAT THE VEHICLE PULLED TO THE RIGHT WHILE DRIVING. ADDITIONALLY, THE VEHICLE SHOOK ABNORMALLY WHEN THE BRAKE PEDAL WAS DEPRESSED. THE VEHICLE WAS TAKEN TO MIKE WARD INFINITI (1800 LUCENT CT, HIGHLANDS RANCH, CO 80129, (303) 350-4300) AND THE CONTACT WAS INFORMED THAT THE REAR ROTORS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT WAS CONCERNED THAT THE CONTROL ARMS ALSO NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND REFERRED THE CONTACT BACK TO THE DEALER. THE FAILURE MILEAGE WAS 35,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.