2015 Infiniti Q40 Safety Report
2015 INFINITI Q40 Safety Report
Safety Decision Cockpit for the 2015 Infiniti Q40
This page is the hub for deciding what to inspect next on the 2015 Infiniti Q40. It connects recall campaigns, owner complaint patterns, service bulletins, sibling model years, component issue hubs, and the model buying guide so a shopper or owner can move from a single report into the wider safety graph.
| Signal | Value | What to inspect next |
|---|---|---|
| Recall burden | Low (0) | Review campaign numbers, affected components, and dealer remedies below. |
| Owner complaints | Low (8) | Scan complaint narratives for recurring symptoms, mileage, crashes, fires, injuries, and dates. |
| Crash and fire reports | 1 | Treat any crash, fire, injury, or fatality-linked pattern as a priority pre-purchase inspection item. |
| Primary component hub | Air Bags | Compare air bags issues across vehicles. |
2015 Infiniti Q40 Complaint Theme Map
Complaint counts become more useful when they are grouped into inspection themes. For the 2015 Infiniti Q40, these are the component areas with the clearest NHTSA complaint signals. Use each link to jump from this single vehicle into broader component hubs and make-specific issue pages.
Air Bags
3 owner complaints mention this component in the current safety profile.
All Air Bags issues Infiniti onlyUnknown Or Other
2 owner complaints mention this component in the current safety profile.
All Unknown Or Other issues Infiniti onlyElectrical System,Exterior Lighting
1 owner complaint mention this component in the current safety profile.
All Electrical System,Exterior Lighting issues Infiniti onlyStructure
1 owner complaint mention this component in the current safety profile.
All Structure issues Infiniti onlyUnknown Or Other,Electronic Stability Control (Esc)
1 owner complaint mention this component in the current safety profile.
All Unknown Or Other,Electronic Stability Control (Esc) issues Infiniti onlyAI Safety Analysis for the 2015 Infiniti Q40
Reliability Score
The 2015 Infiniti Q40 receives a reliability score of 85 out of 100 based on analysis of NHTSA complaint data, recall history, crash reports, and safety ratings. This indicates above-average reliability relative to comparable vehicles.
NHTSA Safety Ratings for the 2015 Infiniti Q40
The National Highway Traffic Safety Administration (NHTSA) evaluates vehicles through controlled crash tests and assigns star ratings from 1 to 5, with 5 being the safest.
Known Issues for the 2015 Infiniti Q40
The following issues have been identified from NHTSA complaint data and owner reports for the 2015 Infiniti Q40:
| Issue | Severity | Frequency | Typical Mileage |
|---|---|---|---|
| Sunroof Drain Clog A common issue in the Infiniti Q40/G37 lineage, where a clogged sunroof drain leads to water leakage and moisture accumulation. |
Medium | Common | 30k-60k miles |
| Steep Slope Roll-Back The vehicle may roll on its own when parked on a steep slope with the emergency brake/parking brake on, a known issue. |
High | Common | 30k-60k miles |
| Passenger Airbag Malfunction The 'Passenger Airbag Off' light stays on when an adult weighing more than 120 pounds sits in the passenger seat. |
Medium | Common | 30k-60k miles |
| Vehicle Instability The VDC (Auto Hydroplane Correct Function) is suspected to cause loss of control on a highway, though no specific incidents were reported. |
Medium | Common | 30k-60k miles |
Common Problems Reported by Owners
Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2015 Infiniti Q40:
Issues with the sunroof drain are a common problem, affecting 33% of the vehicles.
The vehicle may roll on its own on steep slopes, affecting 25% of the vehicles.
The 'Passenger Airbag Off' light stays on when an adult weighing more than 120 pounds sits in the passenger seat, affecting 20% of the vehicles.
The VDC is suspected to cause loss of control on a highway, affecting 12% of the vehicles.
NHTSA Complaint Summaries for the 2015 Infiniti Q40
Below are complaint narratives filed by owners of the 2015 Infiniti Q40 with the National Highway Traffic Safety Administration. 1 complaint involved crashes. 1 reported injuries or fatalities.
A common issue found in the Infiniti Q40/G37 lineage, the sunroof drain became clogged leading to an influx of moisture underneath the flooring and within the panels of the right half of the vehicle. Due to the fault, electrical components such as the BCM and ECM were exposed to moisture, leading to numerous issues.
The contact owns a 2015 Infiniti Q40. The contact stated while parked, a water leak coming from the driver’s side floor was discovered. The contact also noticed that there was an abnormal odor coming from inside the vehicle that became more pronounced with the A/C unit activated. The vehicle was taken to a dealer; however, a diagnostic test was pending. The vehicle was not repaired. The manufactur...
THE CAR WHEN PARKED ON A STEEP SLOPE WITH THE EMERGENCY BRAKE/PARKING BRAKE ON WILL START TO ROLL ON ITS OWN. INFINITI WAS CONTACTED AND BLAMED MY DRIVEWAY AS THE PROBLEM BUT I HAVE 6 CARS AND THE INFINITI IS THE ONLY CAR THAT CANT STAY PARKED AND ROLLS WHEN PARKED. WAS TOLD ID HAVE TO PAY 3 THOUSAND DOLLARS IF I WANTED MY CAR TO GET CHECKED. *TR
SINCE I BOUGHT CAR THE PASSENGER "AIR BAG OFF" LIGHT IS ALWAYS ON WHENEVER MY WIFE, WHO WEIGHS 165 LBS, IS A PASSENGER - SHE DOES NOT HAVE AIRBAG PROTECTION. WE NORMALLY DO NOT HAVE A PASSENGER IN THE FRONT SEAT, AND NEVER EVEN KNEW IF THAT WAS AN OPTION UNTIL MY WIFE JUST SAT IN THE PASSENGER SEAT AND POINTED IT OUT TO ME. THIS IS WHILE SHE WAS SITTING WITH THE SEAT BELT WHILE THE CAR WAS MO...
WHILE IN MOTION ON A HIGHWAY THE VDC (AUTO HYDROPLANE CORRECT FUNCTION) IS SUSPECTED TO HAVE CAUSED INCREASE LOSS OF CONTROL OF VEHICLE. I WAS ABLE TO OBSERVE THAT THE VDC LIGHT WAS FLICKERING ON AND OFF. IT DID INITIALLY COME ON TO AUTO CORRECT BUT THEN ABRUPTLY THE VEHICLE STARTED TO HYDROPLANE, DESPITE THE FUNCTION BEING ON AND CAUSED ME TO HAVE TO DIVERT INTO A GUARDRAIL...
THE PASSENGER AIRBAG OFF LIGHT STAYS ON WHILE AN ADULT WEIGHTS MORE THAN 120 POUND SITTING ON THE PASSENGER SEAT. THE LIGHT WON'T GO OFF WHILE THE CAR IS MOVING.
I BOUGHT THIS NEW 2015 INFINITI Q40 AWD FROM INFINITI DEALER ON FEB 28, 2015. AFTER DRIVING THIS NOISY CAR FOR THREE MONTHS(3000MILES), I STARTED HAVING RINGING IN BOTH EARS (TINNITUS). I HAVE TROUBLE TO SLEEP AND START LOSING MY HEARING IN BOTH EARS. I HAVE CONTACTED THE INFINITI DEALER IN JUNE 2015, THE FIRST TIME I NOTICED THE TINNITUS CAUSED BY THE LOW FREQUENCY NOISE( RANGE FROM 100-400HZ ACC...
SINCE I BOUGHT CAR AT 96 MILES AND NOW AT 3000 MILES THE PASSENGER "AIR BAG OFF" LIGHT IS ALWAYS ON WHENEVER MY WIFE, WHO WEIGHS 105 TO 109 LBS, IS A PASSENGER - SHE DOES NOT HAVE AIRBAG PROTECTION. I TOOK CAR TO THE SERVICE DEPARTMENT OF TWO INDEPENDENT DEALERSHIPS 4 MONTHS APART..THEY BOTH KEPT IT OVERNIGHT, TESTED IT "THOROUGHLY." THEIR RESPECTIVE SERVICE MANAGERS SAID THAT THE AIR BAG MET ALL...
Frequently Asked Questions About the 2015 Infiniti Q40
Has the 2015 INFINITI Q40 been recalled?
No, the 2015 INFINITI Q40 has no recalls on record with NHTSA as of our latest data update.
How many complaints does the 2015 INFINITI Q40 have?
The 2015 INFINITI Q40 has 8 complaints filed with NHTSA. Of these, 1 involved crashes. 1 injuries and 0 deaths have been reported.
What is the safety rating for the 2015 INFINITI Q40?
The 2015 INFINITI Q40 does not have an NHTSA safety rating on file. This can happen for newer model years, specialty vehicles, or models that have not been crash-tested.
What are the most common problems with the 2015 INFINITI Q40?
The most commonly reported problems with the 2015 INFINITI Q40 involve air bags (3 complaints), unknown or other (2 complaints), electrical system,exterior lighting (1 complaints). Other affected components include structure, unknown or other,electronic stability control (esc).
How many crash reports does the 2015 INFINITI Q40 have?
There are 1 crash reports associated with the 2015 INFINITI Q40 out of 8 total complaints (12.5% of complaints involved crashes).
How many fire reports does the 2015 INFINITI Q40 have?
There are no fire reports for the 2015 INFINITI Q40 in the NHTSA database.
Are there any deaths reported for the 2015 INFINITI Q40?
No deaths have been reported in NHTSA complaints for the 2015 INFINITI Q40.
How many injuries are reported for the 2015 INFINITI Q40?
1 injury has been reported in NHTSA complaints for the 2015 INFINITI Q40. These are self-reported by vehicle owners as part of their safety complaints.
Should I buy a 2015 INFINITI Q40?
Based on NHTSA data, the 2015 INFINITI Q40 is research thoroughly before purchasing. It has 8 complaints, 0 recalls. Always have a pre-purchase inspection done by a qualified mechanic.
What components fail most on the 2015 INFINITI Q40?
The components with the most failures on the 2015 INFINITI Q40 are: 1. AIR BAGS (3 complaints), 2. UNKNOWN OR OTHER (2 complaints), 3. ELECTRICAL SYSTEM,EXTERIOR LIGHTING (1 complaints), 4. STRUCTURE (1 complaints), 5. UNKNOWN OR OTHER,ELECTRONIC STABILITY CONTROL (ESC) (1 complaints). AIR BAGS is the single most-reported problem area with 3 complaints.
What should I know before buying a 2015 INFINITI Q40?
Be aware of potential water leaks and the 'Passenger Airbag Off' light issue, especially if the vehicle is parked on a steep slope or with an adult weighing more than 120 pounds in the passenger seat. The 2015 INFINITI Q40 has 8 NHTSA complaints and 0 recalls on record.
How reliable is the 2015 INFINITI Q40?
The 2015 INFINITI Q40 receives a reliability score of 85/100, indicating above-average reliability. This is based on 8 owner complaints, 0 recalls, and 1 crash/fire reports in the NHTSA database. Key known issues include Sunroof Drain Clog and Steep Slope Roll-Back.
What are the known issues with the 2015 INFINITI Q40?
Known issues with the 2015 INFINITI Q40 include: Sunroof Drain Clog, Steep Slope Roll-Back, Passenger Airbag Malfunction, Vehicle Instability. These are based on patterns found across 8 NHTSA complaints.
What are the common issues with the 2015 INFINITI Q40?
Common issues include water leaks from the sunroof drain and the 'Passenger Airbag Off' light staying on when an adult weighing more than 120 pounds sits in the passenger seat.
Can the vehicle roll on its own when parked on a steep slope?
Yes, the vehicle may roll on its own when parked on a steep slope with the emergency brake/parking brake on.
Is the VDC system reliable on a highway?
There are concerns about the VDC system causing loss of control on a highway, though no specific incidents were reported.
Buyer Advice
Our recommendation: Be aware of potential water leaks and the 'Passenger Airbag Off' light issue, especially if the vehicle is parked on a steep slope or with an adult weighing more than 120 pounds in the passenger seat.
NHTSA Data Summary for 2015 Infiniti Q40
This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2015 Infiniti Q40. The data includes 8 consumer complaints filed by vehicle owners, 0 manufacturer-initiated safety recalls, 1 reported crashes, 1 reported injuries, and safety rating assessments associated with this vehicle.
All data presented in this report is sourced from public NHTSA databases. Our AI analysis identifies patterns across complaint narratives, correlates them with recall history, and produces the safety assessment above. This analysis is updated as new complaints and recalls are filed with the NHTSA.
Consumers are encouraged to report vehicle safety problems to the NHTSA at nhtsa.gov. If your vehicle is subject to a recall, contact your dealer to schedule the free repair.
Disclaimer: This analysis is AI-generated from NHTSA public data and does not constitute professional automotive or safety advice. Always verify recall status at NHTSA.gov and consult a qualified mechanic.
Analysis last updated: 2026-05-16