2018 Infiniti QX30 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
23 owner complaints analyzed
3 distinct recall campaigns
40,000 mi median reported failure mileage
Scope: 2018 model year. Data snapshot: . 9 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 8 of 23 complaints (34.8%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 9 | 39.1% |
| Steering behavior | 6 | 26.1% |
| Braking behavior | 3 | 13.0% |
| Transmission and shifting | 2 | 8.7% |
| Engine operation | 2 | 8.7% |
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 |
|---|---|
| Electrical System | 8 |
| Unknown Or Other | 5 |
| Air Bags | 4 |
| Engine | 4 |
| Steering | 4 |
| Service Brakes | 3 |
| Power Train | 2 |
| Visibility/Wiper | 2 |
Electrical System: 8; Unknown Or Other: 5; Air Bags: 4; Engine: 4; Steering: 4; Service Brakes: 3; Power Train: 2; Visibility/Wiper: 2
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 | 3 |
| 50,000 to 74,999 | 3 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 3; 25,000 to 49,999: 3; 50,000 to 74,999: 3; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (3). 14 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 |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 7 |
| 2025 | 3 |
| 2026 | 3 |
2017: 1; 2018: 1; 2019: 1; 2020: 2; 2021: 1; 2022: 1; 2023: 3; 2024: 7; 2025: 3; 2026: 3
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 9 complaint narratives. Steering behavior appears in 6 complaint narratives. Braking behavior appears in 3 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.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11123544 · 2018-08-30 (August 30, 2018)
PURCHASED THE CAR BRAND NEW TWO MONTHS AGO. DISCOVERED THE LEFT HATCH HARNESS COVER IS CRUSHED. WAS TOLD BY INFINITI REGIONAL MANAGER EVERYTHING ELECTRICAL IS RUN THOROUGH THAT HARNESS AND EVERY TIME THE HATCH IS OPENED AND CLOSED THE WIRING IS GETTING PINCHED. ALREADY HAVE HAD THE CAR TO THE DEALERSHIP FOR BLACK BACKUP SCREEN, AUDIO PROBLEMS, LIGHTS NOT TURNING OFF, RADIO NOT SHUTTING OFF AFTER CAR IS TURNED OFF AND DOOR IS OPENED. WAS TOLD THAT WAS A SOFTWARE PROBLEM AND THAT THE SOFTWARE HAS BEEN UPDATED. INFINITI WON'T REPLACE THE WIRING …
Owner-reported narrative. 2,200 miles reported. Look up ODI 11123544 at NHTSA ↗
Owner report 11311498 · 2020-02-25 (February 25, 2020)
WHEN I TURN MY CAR OFF THE RADIO IS STAYING ON AND IF I DON'T CRANK IT EVERY 6-8 HOURS THE BATTERY GOES COMPLETELY DEAD AND I HAVE TO RECHARGE IT
Owner-reported narrative. Look up ODI 11311498 at NHTSA ↗
Owner report 11412908 · 2021-04-19 (April 19, 2021)
TL* THE CONTACT OWNS A 2018 INFINITI QX30. THE CONTACT STATED THAT AT START-UP, THE CONTACT HEARD AN ABNORMAL POPPING SOUND WHILE TURNING THE STEERING WHEEL. THE CONTACT STATED THAT THE AIR BAG WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. ADDITIONALLY, SEVERAL FEATURES ON THE STEERING WHEEL FAILED TO OPERATE AS NEEDED. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT YET REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 34,000.
Owner-reported narrative. 34,000 miles reported. Look up ODI 11412908 at NHTSA ↗
Owner report 11462066 · 2022-04-25 (April 25, 2022)
A variety of dashboard lights illuminated including engine light, ABS, emergency brake failure message etc. Vehicle drove as if power steering had failed. When I brought the car in to the Dealer I was told that the vehicle displayed codes for two concerns: 1) air quality sensor and 2) all 4 wheel speed sensors. The wheel speed sensors had previously been replaced in 2019 while the car was still under warranty. Current estimate for the repair was over $3200. Ultimately, Infiniti corporate paid for the current repair stating these items were “und…
Owner-reported narrative. Look up ODI 11462066 at NHTSA ↗
Owner report 11372409 · 2020-10-30 (October 30, 2020)
WHILE DRIVING VEHICLE THERE IS A SUDDEN LOST OF ENGINE POWER AND VEHICLE WILL NOT ACCELERATE. SEVERAL WARNING INDICATORS COME UP ON THE DASH. WARNINGS ARE 'EMERGENCY BRAKE INOPERATIVE', 'TRACTION CONTROL INOPERATIVE, SEE OWNERS MANUAL', 'ICC INOPERATIVE. I'M GETTING ENGINE CODE P2128 'ACCELERATOR PEDAL POSITION SENSOR'. THE CAR IS NOT SAFE TO DRIVE. DEALER CANNOT/WILL NOT REPAIR THE PROBLEM.
Owner-reported narrative. 59,000 miles reported. Look up ODI 11372409 at NHTSA ↗
Owner report 11574917 · 2024-03-01 (March 1, 2024)
The contact owns a 2018 Infiniti QX30. The contact stated while driving approximately 50 MPH, the vehicle erroneously shifted into neutral(N) and stalled inadvertently. The contact was able to pull to the side of the road. The vehicle failed to restart. The message "Service Required - Do Not Shift Gears - Visit Dealer" was displayed temporarily. The vehicle was towed to the local dealer and it was diagnosed and determined that the auxiliary battery needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure…
Owner-reported narrative. 40,000 miles reported. Look up ODI 11574917 at NHTSA ↗
Owner report 11611876 · 2024-08-30 (August 30, 2024)
Hello, My 2018 Infiniti QX30 slips into neutral while driving on the road at high speeds and without any warning. The message on the dash is vague “Service required. Do not shift gears. Visit Dealer.” I almost got into an accident more than once while driving the vehicle as low power to the vehicle accompanies this when it happens. I had absolutely no problems with the vehicle leading up to the first occurrence. In fact, I bought the car with less than 10k miles on it from Infiniti directly, where it was a fleet loner vehicle and well maintain…
Owner-reported narrative. Look up ODI 11611876 at NHTSA ↗
Owner report 11632150 · 2024-12-23 (December 23, 2024)
The contact owns a 2018 Infiniti QX30. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where the diagnostic trouble codes P052E71 and P053A-00 were retrieved. The mechanic determined that the crankcase ventilation system intake valve had failed. The mechanic also informed the contact that the vehicle was a Mercedes-Benz vehicle that the Infiniti manufacturer had rebranded as an Infiniti vehicle. The mechanic confirmed that the engine was a Mercedes-Benz engine. The deale…
Owner-reported narrative. 52,000 miles reported. Look up ODI 11632150 at NHTSA ↗