AutoUtility currently tracks 125 official NHTSA owner defect complaints for the 2015 Infiniti Q50. Powertrain & Transmission issues are the most frequently reported category, appearing in 39 complaints (31.2% of submitted records). Among these NHTSA complaint records, 16 filings cite a crash, 2 cite a fire, 8 report one or more injuries.

Key Problem Findings
  • Total NHTSA Complaints: 125 reports
  • #1 Reported Problem Area: Powertrain & Transmission (39 reports • 31.2% of submitted complaints)
  • Secondary Problem Areas: Steering System (28), Driver Assistance & Safety Tech (22)
  • Crash-Citing Complaints: 16 filings
  • Fire-Citing Complaints: 2 filings
  • Complaints Reporting Injuries / Fatalities: 8 injury filings • 0 fatality filings
Reporting Methodology: Statistics describe unverified consumer submissions voluntarily filed with NHTSA. Complaint volume is not normalized for vehicle sales volume or miles driven. Multiple components can be cited within a single owner complaint submission.
Total Complaints
125
Submitted to NHTSA ODI
Crash-Citing Complaints
16
Filings citing a collision
Fire-Citing Complaints
2
Filings citing smoke or fire
Complaints Reporting Injuries
8
Filings citing one or more injuries
Complaints Reporting Fatalities
0
Consumer filings citing fatalities

Most Reported Problems for 2015 Infiniti Q50

Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records

#1 Problem Area 31.2% of complaints

Powertrain & Transmission

39 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
🔥 1 fire report
#2 Problem Area 22.4% of complaints

Steering System

28 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
⚠️ 3 crash reports 🩹 1 injury report entry
#3 Problem Area 17.6% of complaints

Driver Assistance & Safety Tech

22 owner complaints submitted to NHTSA ODI
✓ 0 crashes or fires cited
#4 Problem Area 16.8% of complaints

Air Bags & Restraints

21 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
⚠️ 9 crash reports 🔥 1 fire report 🩹 9 injury report entries
#5 Problem Area 13.6% of complaints

Electrical System

17 owner complaints submitted to NHTSA ODI
⚠️ 1 crash report 🔥 1 fire report 🩹 1 injury report entry
Domain Share Note: Share percentage represents the proportion of unique complaint filings referencing each vehicle system. Because single complaints may cite multiple systems (such as engine and electrical simultaneously), domain percentages represent individual category incidence and may sum to over 100%.

Symptoms Mentioned in NHTSA Owner Reports for 2015 Infiniti Q50

Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis

AutoUtility uses deterministic phrase matching to identify recurring symptom descriptions within consumer-submitted NHTSA complaint narratives.

Powertrain & Transmission 2.4% of complaints

Loss of Motive Power While Driving

3 complaint narratives describe this symptom
Symptom Identification Method: A complaint may describe more than one symptom, so percentages may sum to more than 100%. Symptom identification reflects text contained in consumer-submitted complaint records and does not establish a confirmed mechanical diagnosis.

Recent NHTSA Owner Reports for 2015 Infiniti Q50

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Powertrain & Transmission NHTSA ODI ID: #11756528
Filed: 08/12/2026

"While operating the vehicle, the transmission suffered an abrupt failure resulting in Diagnostic Trouble Code (DTC) P0720 (Output Speed Sensor Circuit). Further diagnostic inspection revealed a complete internal failure of the integrated valve body assembly, which houses the Transmission Control..."

Incident Date: 08/08/2026 • Raw NHTSA Component: POWER TRAIN,UNKNOWN OR OTHER
Steering System NHTSA ODI ID: #11753148
Filed: 07/27/2026

"After starting the car the steering wheel jumps off center and the steering is all over the place. have to start the car again and the steering wheel jumps the other direction. I strongly suggest this is exactly what the June 13, 2016 NHTSA campaign number 16V43000 the software may reduce steering..."

Incident Date: 06/02/2026 • Raw NHTSA Component: STEERING
Steering System NHTSA ODI ID: #11751944
Filed: 07/21/2026

"DIRECT ADAPTIVE STEERING EXPERIENCEING AT START UP ALTERING THE VEHICLES STEERING AND RESPONSIVENESS AND TURNING RADIUS DOES NOT WORK AND IS INCREASING THE RISK OF A CRASH. VERY UNSAFE TO DRIVE. THERE IS A RECALL 16V430000 ON THIS VERY PROBLEM. HAVE BEEN TOLD BY DEALERSHIP AND NISSAN MOTORS THAT MY..."

Incident Date: 07/21/2026 • Raw NHTSA Component: STEERING
Driver Assistance & Safety Tech NHTSA ODI ID: #11750490
Filed: 07/15/2026

"While driving my 2015 Infiniti Q50s, the transmission suddenly suffered a catastrophic electronic failure, causing the vehicle to immediately drop into "limp mode." This resulted in a sudden and dangerous loss of acceleration while operating in traffic. A diagnostic scan revealed trouble codes..."

Incident Date: 07/07/2026 • Raw NHTSA Component: POWER TRAIN,VEHICLE SPEED CONTROL
Steering System NHTSA ODI ID: #11745913
Filed: 06/23/2026

"DAS issue that I have been dealing with for two months now, issue is still not resolved even after taking out a personal loan for 6k to fix the modules at Douglas Infiniti, waited weeks for the modules, they replaced the modules, did the calibration but a new issue is happening where I'm losing..."

Incident Date: 04/01/2026 • Raw NHTSA Component: STEERING
Consumer Narrative Notice: Excerpts are sanitized text descriptions submitted by vehicle owners to the federal ODI database. They reflect the reporting consumer's observations at the time of filing and have not been independently confirmed by vehicle manufacturers or government investigators.

Complaint History for Infiniti Q50

Reported defect complaint volume across sibling model years (2015–2024)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Infiniti Q50 Current Page 125 16 3 Current
2016 Infiniti Q50 39 1 4 View 2016 Problems →
2017 Infiniti Q50 62 3 4 View 2017 Problems →
2018 Infiniti Q50 42 1 3 View 2018 Problems →
2019 Infiniti Q50 30 3 1 View 2019 Problems →
2020 Infiniti Q50 3 0 0 View 2020 Problems →
2021 Infiniti Q50 4 1 3 View 2021 Problems →
2022 Infiniti Q50 1 0 0 View 2022 Problems →
2023 Infiniti Q50 7 2 0 View 2023 Problems →
2024 Infiniti Q50 0 0 0 View 2024 Problems →
Comparative Disclaimer: Complaint totals are unadjusted historical counts and are not normalized for vehicles sold, active fleet size, or total road mileage. Newer model years naturally have had less calendar exposure time to accumulate owner filings.

Detailed NHTSA Component Breakdown for 2015 Infiniti Q50

Complete distribution of consumer defect reports across all 46 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Reported Injury Entries Reported Fatality Entries
Powertrain NHTSA category: POWER TRAIN 21 0 0 0 0
Steering NHTSA category: STEERING 15 1 0 0 0
Air Bags NHTSA category: AIR BAGS 12 6 0 6 0
Service Brakes NHTSA category: SERVICE BRAKES 8 4 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 7 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL 5 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL 4 0 0 0 0
Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL 4 0 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 3 0 1 0 0
EXTERIOR LIGHTING 3 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER 2 1 0 1 0
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 2 0 0 0 0
STEERING,AIR BAGS 2 1 0 1 0
STEERING,UNKNOWN OR OTHER 2 0 0 0 0
Structure & Body NHTSA category: STRUCTURE 2 0 0 0 0
Tires NHTSA category: TIRES 2 0 0 0 0
Wheels & Hubs NHTSA category: WHEELS 2 0 0 0 0
AIR BAGS,ELECTRONIC STABILITY CONTROL (ESC),FUEL/PROPULSION SYSTEM 1 1 0 0 0
AIR BAGS,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
AIR BAGS,SEAT BELTS 1 0 0 0 0
AIR BAGS,SERVICE BRAKES 1 1 0 2 0
ELECTRICAL SYSTEM,SEATS 1 0 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,ENGINE 1 0 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,UNKNOWN OR OTHER 1 0 0 0 0
Engine NHTSA category: ENGINE 1 0 0 0 0
ENGINE AND ENGINE COOLING,POWER TRAIN,SEAT BELTS 1 0 1 0 0
Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,ENGINE 1 0 0 0 0
POWER TRAIN,UNKNOWN OR OTHER 1 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE 1 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL,UNKNOWN OR OTHER 1 0 0 0 0
Seat Belts NHTSA category: SEAT BELTS 1 0 0 0 0
Seats & Restraints NHTSA category: SEATS 1 0 0 0 0
STEERING,ELECTRICAL SYSTEM 1 0 0 0 0
STEERING,ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC) 1 0 0 0 0
STEERING,ELECTRICAL SYSTEM,UNKNOWN OR OTHER 1 0 0 0 0
STEERING,POWER TRAIN,AIR BAGS 1 0 0 0 0
STEERING,POWER TRAIN,VEHICLE SPEED CONTROL 1 0 0 0 0
STEERING,SEATS 1 1 0 0 0
STEERING,SERVICE BRAKES 1 0 0 0 0
STEERING,SERVICE BRAKES,ENGINE 1 0 0 0 0
STEERING,UNKNOWN OR OTHER,SERVICE BRAKES 1 0 0 0 0
VEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER 1 0 0 0 0
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,ENGINE 1 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 1 0 0 0 0
Data Attribution & Reporting Methodology: Complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Because multiple vehicle components can be cited within a single owner complaint submission, component-level rollups may sum to more than the unique complaint count (125). Injury and fatality entries in the detailed table reflect raw values entered by reporting consumers across individual submissions; they are not deduplicated casualty statistics and may include duplicate or unverified entries. Complaint volume is not normalized for sales volume or vehicle mileage and does not represent an audited component failure rate.

Official NHTSA Defect Investigations (1)

1 CLOSED

Formal safety defect inquiries and engineering analyses opened by the NHTSA Office of Defects Investigation (ODI)

Official Federal Inquiries: NHTSA opens a defect investigation when safety screening or consumer defect trends indicate a potential unreasonable safety risk. An open investigation is a formal inquiry and does not by itself confirm a defect or result in a mandatory recall.
CLOSED Defect Petition (DP) ODI Action #DP22005
Opened: 2023-01-27 • Closed: 2023-08-07

Pedestrian alert sounds

Affected Component: ELECTRICAL SYSTEM:PROPULSION SYSTEM

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight ra...

✓ Resulted in Safety Recall Campaign: 22V063000 Official NHTSA File →
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.