2015 Infiniti Q40: Is It Reliable?
Problems, Recalls & Buyer Verdict
Shopping for a used 2015 Infiniti Q40? This page highlights owner-reported complaint patterns and recall history so you can inspect the right systems before buying. Current data includes 8 complaints, with Uncategorized Issues as the top reported area.
2015 Infiniti Q40 Fuel Economy
✓ EPA Official DataEPA-rated fuel economy across 2 2015 Infiniti Q40 trim configurations. The median figure is shown; range reflects all available trims.
Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions. 2 trims analysed.
2015 Infiniti Q40 Safety Ratings
NHTSA 5-Star Program2 variants tested — showing 2015 Infiniti Q40 4 DR AWDOfficial crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.
Overall
Not Rated10.1% rollover risk
Frontal Crash
Not RatedSide Crash
Not RatedRollover
10.1% probability
Source: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.
Based on NHTSA complaint data, the 2015 Infiniti Q40 has 8 owner complaints, 1 crash-related complaints, and 0 recall campaigns on record. The most frequently reported component is Uncategorized Issues. NHTSA reliability signal: Severe Issues.
- Make
- Infiniti
- Model
- Q40
- Model year
- 2015
- NHTSA owner complaints
- 8
- Crash-related complaints
- 1
- Safety recall campaigns
- 0
- Top reported component
- Uncategorized Issues
- Reliability signal
- Severe Issues
- EPA MPG combined
- 22
- EPA MPG city / highway
- 19 / 27
- Fuel type
- Premium Gasoline
- NHTSA rollover rating
- 5/5 stars
- Electronic stability control
- Standard
Most Common 2015 Infiniti Q40 Problems
Top owner-reported complaint areas and where they often appear.
Uncategorized Issues
Airbag Malfunctions
Electrical Faults
Complaint patterns center on Uncategorized Issues, Airbag Malfunctions, Electrical Faults. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.
Should You Buy a Used 2015 Infiniti Q40?
The 2015 Infiniti Q40 shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase.
Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report.
What to Check Before Buying a Used 2015 Infiniti Q40
Inspection Focus
- Investigate uncategorized issues by requesting service records or inspecting the vehicle thoroughly.
- Verify all open recalls at nhtsa.gov/recalls, though none are currently listed for this model.
- Request service records for airbag system and electrical components.
- Have a mechanic inspect the vehicle before purchase, focusing on reported components.
Before You Close the Deal
- Investigate uncategorized issues by requesting service records or inspecting the vehicle thoroughly.
- Verify all open recalls at nhtsa.gov/recalls, though none are currently listed for this model.
- Request service records for airbag system and electrical components.
- Have a mechanic inspect the vehicle before purchase, focusing on reported components.
Shortlist with model-year data. Decide with the exact VIN.
Before buying a used 2015 Infiniti Q40, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.
What the Complaint Data Suggests
Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology
Based on 8 NHTSA complaints for the 2015 INFINITI Q40, issues appear concentrated in uncategorized problems and airbag malfunctions, each with 3 complaints. There is 1 crash-related complaint, but overall confidence is low due to the small sample size.
- Uncategorized Issues and Airbag Malfunctions each account for 3 complaints, the highest among reported components.
- There is 1 crash-related complaint, though no recalls have been issued for this model year.
- Electrical faults, headlight/taillight failures, structural problems, and electronic stability control each have 1 complaint.
- Uncategorized Issues (3 complaints) – nature unspecified, but may warrant further investigation.
- Airbag Malfunctions (3 complaints) – a recurring theme that buyers may want to inspect.
- Electrical Faults (1 complaint) – though few, electrical issues can affect multiple systems.
All 2015 Infiniti Q40 Complaints by Category
Every owner-reported complaint category filed with NHTSA for the 2015 Infiniti Q40. Use this as a pre-purchase inspection checklist.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Uncategorized Issues | 3 | 1 | — | — | |
| Airbag Malfunctions | 3 | — | — | — | |
| Electrical Faults | 1 | — | — | — | |
| Headlight/Taillight Failures | 1 | — | — | — | |
| Structural Problems | 1 | — | — | — | |
| Electronic Stability Control (Esc) | 1 | 1 | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
Real Owner Complaints
Read what owners actually reported to NHTSA for the 2015 Infiniti Q40. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
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 …
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 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 …
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…
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 STAR…
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 INFINIT…
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 APA…
Source: NHTSA Complaints Database. Real owner reports for the 2015 Infiniti Q40.
2015 Infiniti Q40 Recalls
0 campaignsNHTSA recall campaigns for the 2015 Infiniti Q40. No recall campaigns are currently listed for this model year in the dataset, but VIN-level recall checks are still essential. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.
No recall campaigns found for this model year in the current data. Check nhtsa.gov/recalls directly for the latest information.
2015 Infiniti Q40 Buying FAQ
Buyer-focused answers based on real NHTSA complaint and recall data for this model year.
Is the 2015 Infiniti Q40 reliable?▾
Severe Issues. NHTSA currently shows 8 owner complaints, 1 crash-related complaints, and 0 recall campaigns for this model year. The 2015 Infiniti Q40 shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.
What are the most common problems with the 2015 Infiniti Q40?▾
#1: Uncategorized Issues (3 complaints). #2: Airbag Malfunctions (3 complaints). #3: Electrical Faults (1 complaints)
At what mileage do problems start on the 2015 Infiniti Q40?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2015 Infiniti Q40?▾
Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2015 Infiniti Q40, NHTSA complaints include 1 crash-related reports and 0 fire reports out of 8 total complaints. 1 injury reports are also on file. For controlled crash-test ratings, check nhtsa.gov/ratings.
Does the 2015 Infiniti Q40 have any recalls?▾
No NHTSA recall campaigns were found for the 2015 Infiniti Q40 in the current data. Always verify with a VIN check as recalls can be added at any time.
Should I buy a 2015 Infiniti Q40?▾
The 2015 Infiniti Q40 shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report. Pay extra attention to Uncategorized Issues during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.
Wider context: See the full Infiniti Q40 reliability report with year-by-year comparison.
Owner Reliability Rating
Rate the 2015 Infiniti Q40 based on your ownership experience.
Add your rating:
Ratings are based on owner experience and are separate from NHTSA data shown above.
Check the Exact Vehicle History Before You Buy
Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.