AI Damage2019 Infiniti Q50: common problems
Owners of the 2019 Infiniti Q50 filed 30 complaints with NHTSA, most often about engine and electrical system. The maker issued 90 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 30
- involving a crash
- 3
- Technical service bulletins (TSB)
- 90
What fails most often
- 1 Engine 33% of all complaints
- 2 Electrical system 20% of all complaints
- 3 Powertrain 20% of all complaints
- 4 Steering 13% of all complaints
- 5 Suspension 13% of all complaints
- 6 Vehicle speed control 13% of all complaints
- 7 Fuel/propulsion system 10% of all complaints
- 8 Engine and cooling 7% of all complaints
- Engine: 10 complaints (33% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 2.
- Electrical system: 6 complaints (20% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 40.
- Powertrain: 6 complaints (20% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 5.
- Steering: 4 complaints (13% of all); manufacturer bulletins for this component: 1.
- Suspension: 4 complaints (13% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · petrol · turbo · 4 cyl
- 3 L · petrol · turbo · 6 cyl
- automatic, 7-speed
Drive: RWD, AWD
Symptoms owners describe
How many of the 30 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 10 | 1 | 2 |
| Electrical system | 6 | 1 | 40 |
| Powertrain | 6 | 1 | 5 |
| Steering | 4 | 0 | 1 |
| Suspension | 4 | 0 | 0 |
| Vehicle speed control | 4 | 1 | 0 |
| Fuel/propulsion system | 3 | 0 | 0 |
| Engine and cooling | 2 | 0 | 19 |
| Air bags | 2 | 1 | 2 |
| Service brakes | 2 | 0 | 1 |
| Visibility | 1 | 0 | 9 |
| Forward collision avoidance | 1 | 0 | 6 |
| Exterior lighting | 1 | 1 | 4 |
| Lane departure | 1 | 0 | 4 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The car was involved in an accident, after the shop checked the vehicle it was brought to our attention that the air bags got stuck and did not deploy because of a malfunction. I was not aware of this which it could put my son in really dangerous situation.
Unintended acceleration. Pulling into a parking space in a shopping center parking lot, after going over a speed bump and making a left hand turn into the spot the car accelerated and would not stop. Pushing on the brakes did not work.
Warning light showed that airbags were not working June 2026. Auto brought to dealer, and it is a very costly job to fix. Auto just out of warranty in years not miles. Infiniti in previous years has had a recall on their cars, but not my VIN number for failing airbags.
The vehicle began experiencing engine knocking/ticking noises, rough idle, hesitation under acceleration, shaking, and intermittent misfire symptoms. The issue continued even after replacing spark plugs and ignition components.
While operating the vehicle under normal driving conditions, the engine experienced a significant loss of power and reduced acceleration. The issue is believed to be related to turbocharger failure within the engine system.
Vehicle is tramaling or wandering at 50+ mph speeds. Making it dangerously difficult to keep between the lines without constant steering corrections. I have had car aligned and changed the tires. Still issue persists. There are several post online about this issue with the infiniti Q60 and Q50 models.
Nor is Lane Departure Warning, Lane Keeping Assistance, Parking Collision Warning, Rear Cross Traffic Warning functioning on car. The automatic rain sensor isn't working at all.
While driving vehicle if you suddenly stop vehicle would stop, however when applying pressure to gas pedal vehicle would not move, if foot is left on pedal car would jerk and then proceed forward. Unlike other vehicle after breaking hard vehicle would move without hesitation.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,087 of 2,102 model years in the NHTSA data (among the 48% least complained about).
On average one model year of the Q50 has 21 complaints (9 years in the data). This year has 30, above average.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other…
CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement “Certification Label” or “VIN Plate/Label” may be needed. HINT: Certification Label =…
- TELEMATICS SERVICE INFORMATION See ITB19-029 for models built after those listed above for a different…
TELEMATICS SERVICE INFORMATION See ITB19-029 for models built after those listed above for a different Service Procedure. SERVICE INFORMATION The Applied Vehicles are equipped with a wireless communication device…
- AEB WARNING LIGHT IS ON WITH WARNING MESSAGES DISPLAYED ON COMBINATION METER APPLIED VEHICLES
2015-2024 Q50 (V37) 2015-2018 Q50 Hybrid (HV37) 2017-2022 Q60 (CV37) 2015-2019 Q70 (Y51) 2015-2018 Q70 Hybrid (HY51) 2019-2024 QX50 (J55) 2022-2024 QX55 (FJ55) 2015-2021 QX60 (L50) 2022-2024 QX60 (L51) 2015-2019 QX60…
- TURBOCHARGER REPLACEMENT PROCEDURE APPLIED ENGINES
VR30DDTT IF YOU CONFIRM One or both turbochargers require replacement. ACTION 1. Replace the affected turbocharger(s). Refer to the SERVICE PROCEDURE in this bulletin for the updated procedure. IMPORTANT: You MUST…
- DTC B00A0-00 STOREIF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored, AND OCS zero…
DTC B00A0-00 STOREIF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored, AND OCS zero point reset cannot be performed, (continued on the next page)D
- INTELLIGENT KEY INITIALIZATION PROCEDURE STOPS OR WILL NOT CONTINUE This bulletin has been amended
See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
- INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NHTSA lists 90 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2019 Infiniti Q50?
Owner complaints to NHTSA most often mention: engine, electrical system, powertrain. Total complaints: 30. The most frequent symptoms in complaint texts: warning lights, check engine (17%), engine failure or replacement (13%), knocking, grinding or other noise (13%).
How many service bulletins (TSB) were issued for the 2019 Infiniti Q50?
NHTSA lists 90 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2019 Infiniti Q50 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2019 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.