2015 Infiniti Q40: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
8 owner complaints analyzed
0 distinct recall campaigns
25,000 mi median reported failure mileage
Scope: 2015 model year. Data snapshot: . 7 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Air Bags is the most frequently named component, appearing in 3 of 8 complaints (37.5%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 1 | 12.5% |
| Electrical and battery issues | 1 | 12.5% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Air Bags | 3 |
| Unknown Or Other | 3 |
| Electrical System | 1 |
| Electronic Stability Control (Esc) | 1 |
| Exterior Lighting | 1 |
| Structure | 1 |
Air Bags: 3; Unknown Or Other: 3; Electrical System: 1; Electronic Stability Control (Esc): 1; Exterior Lighting: 1; Structure: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 3 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 3; 25,000 to 49,999: 1; 50,000 to 74,999: 2; 75,000 to 99,999: 0; 100,000 to 149,999: 1; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (3). 1 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2024 | 1 |
| 2025 | 1 |
2015: 2; 2017: 1; 2019: 2; 2020: 1; 2024: 1; 2025: 1
Pattern summary
Air Bags leads the component reports. Braking behavior appears in 1 complaint narratives. Electrical and battery issues appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10761872 · 2015-09-06 (September 6, 2015)
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 SPECIFICATIONS AND THAT THEY "CANNOT ADJUST SINCE IT IS SET AT THE FACTORY" I WAS REFERRED TO INFINITI REGIONAL OFFICE AND THEIR REPRESENTATIVE SAID…
Owner-reported narrative. 120 miles reported. Look up ODI 10761872 at NHTSA ↗
Owner report 10816881 · 2015-12-29 (December 29, 2015)
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 ACCORDING TO THE ANALYSIS FROM ADOBE AUDITION CC SOFTWARE). THE NOISE BECAME NOTICEABLE WHEN REACH 35 MPH ON BOTH LOCAL AND HIGHWAY ROAD. THEY REFUSED TO…
Owner-reported narrative. 3,000 miles reported. Look up ODI 10816881 at NHTSA ↗
Owner report 11000712 · 2017-06-22 (June 22, 2017)
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.
Owner-reported narrative. 18,000 miles reported. Look up ODI 11000712 at NHTSA ↗
Owner report 11240262 · 2019-07-29 (July 29, 2019)
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...
Owner-reported narrative. 52,000 miles reported. Look up ODI 11240262 at NHTSA ↗
Owner report 11258627 · 2019-09-27 (September 27, 2019)
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 MOVING AT ANY SPEED.
Owner-reported narrative. 60,000 miles reported. Look up ODI 11258627 at NHTSA ↗
Owner report 11325245 · 2020-05-20 (May 20, 2020)
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
Owner-reported narrative. 25,000 miles reported. Look up ODI 11325245 at NHTSA ↗
Owner report 11609960 · 2024-08-21 (August 21, 2024)
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 manufacturer was not notified of the failure. The failure mileage was 100,328.
Owner-reported narrative. 100,328 miles reported. Look up ODI 11609960 at NHTSA ↗
Owner report 11654319 · 2025-04-13 (April 13, 2025)
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.
Owner-reported narrative. Look up ODI 11654319 at NHTSA ↗
Recall history
0 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
No recall campaigns are recorded in this snapshot.