2018 Infiniti Q50 problems, complaints & recalls
Most-reported problem areas: Engine (10) · Air Bags (5) · Wheels (3)
🧭 Reliability snapshot
Compared against other Infiniti Q50 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (3)
Power Train:driveline:driveshaft 2024-06-21 · campaign 24V470000 · 7,222 vehicles
Defect: Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.
Risk: A broken driveshaft can result in a loss of drive power, or a vehicle roll away when the vehicle is in park without the parking brake applied. Both scenarios can increase the risk of a crash.
Fix: Dealers will replace the driveshaft, free of charge. Owner notification letters were mailed August 13, 2024. Owners may contact INFINITI's customer service at 1-800-662-6200. INFINITI's numbers for this recall are R24A5 and R24A7.
Back Over Prevention: Sensing System: Camera 2019-09-12 · campaign 19V654000 · 1,228,830 vehicles
Defect: Nissan North America, Inc. (Nissan) is recalling certain 2018-2019 Nissan Altima, Armada, Frontier, Kicks, Leaf, Maxima, Murano, NV, NV200, Pathfinder, Rogue, Rogue Sport, Sentra, Titan, Titan Diesel, Versa Note and Versa Sedan vehicles, as well as Infiniti Q50, Q60, QX30 and QX80 vehicles. Additionally included are 2019 Nissan GT-R and Taxi and Infiniti QX50, QX60, Q70, Q70L vehicles. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible an
Risk: The lack of an image in the back-up camera display increases the risk of a crash.
Fix: Nissan will notify owners in phases, having dealers update the back-up camera settings software, free of charge. The recall began November 11, 2019 and all affected VINs should be activated. Owners may contact Nissan customer service at 1-800-867-7669 or INFINITI customer service at 1-800-662-6200.
Electrical System:software 2017-07-27 · campaign 17V476000 · 14,192 vehicles
Defect: Nissan North America, Inc. (Nissan) is recalling certain 2016-2018 Infiniti Q50 and 2017 Infiniti Q60 vehicles equipped with a 2.0L engine. Incorrect Fuel Pump Control Module (FPCM) software may allow the fuel level in the main tank to be too low to supply fuel to the engine, causing the engine to stall while driving.
Risk: An engine stall can increase the risk of a crash.
Fix: Nissan will notify owners, and Infiniti dealers will reprogram the Fuel Pump Control Module (FPCM) with corrected software, free of charge. The recall began August 29, 2017. Owners may contact Infiniti customer service at 1-800-662-6200.
Service bulletins (159)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Structure:body 2026-04-13 · ITB09-063C · Service Bulletin/Repair Instructions
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 = fmvss (federal motor vehicle safety standards) label. these items may be availabl
Electrical System 2026-03-30 · ITB12-011R · Service Bulletin/Repair Instructions
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 called a telematics communication unit (tcu). with an active infiniti connection® or in
Forward Collision Avoidance: Automatic Emergency Braking 2025-02-20 · ITB23-023A · Service Bulletin/Repair Instructions
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) 201
Engine 2025-02-04 · P4A05, P4A06 · Service Bulletin/Repair Instructions
***** retailer announcement ***** infiniti is committed to providing the highest levels of product quality and customer satisfaction. therefore, infiniti is conducting a warranty extension to full useful life (ful) of 10 years or 120,000 miles, whichever occurs first, if white smoke or oil leak occu
Engine 2025-02-04 · ITB17-050C · Service Bulletin/Repair Instructions
mil on with dtc(s) stored in the ecm this bulletin is no longer active. please discard previous versions of itb17-050.
Engine 2025-02-04 · ITB22-038D · Service Bulletin/Repair Instructions
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 closely follow the entire servic
Showing the 6 most recent of 159 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-09-22 · Air Bags“systemic defect front passenger seat occupancy sensor failure triggering an illuminated airbag warning light.…”
2026-07-07 · Seat Belts · 34,000 mi“the contact owns a 2018 infiniti q50. the contact stated while driving at an undisclosed speed, the air bag warning light illuminated. the vehicle was taken to the dealer, where the contact was informed that the front passenger seat and passenger seat belt needed to be replaced. the vehicle was not repaired. the manufacturer was not made aware of t…”
2026-06-08 · Air Bags · 59,200 mi“the contact owns a 2018 infiniti q50. the contact stated that while driving at an undisclosed speed, the front passenger occupant classification system (ocs) sensor became inoperable. the vehicle was taken to the dealer, where it was diagnosed that the front passenger ocs sensor had failed and needed to be replaced. the vehicle was not repaired. th…”
2026-05-05 · Electrical System“i am submitting this complaint regarding a safety defect in my 2018 infiniti q50, which was manufactured prior to may 1, 2018. despite matching the make, model, and production timeframe associated with an existing infiniti recall for backup camera failures, my specific vehicle is not included in the recall population. the backup camera in my vehic…”
2026-03-19 · Electrical System:instrument Panel:speedometer/Odometer · 54,000 mi“ odometer fraud. the contact purchased a 2018 infiniti q50. it was discovered that there were three separate mileage discrepancies. the vehicle was a dealer sale. at the time of purchase, the vehicle mileage was 50,370; however, at the time of registration, it was discovered that the mileage had been rolled back from 54,000 to 28,630 miles. the mil…”
2026-01-07 · Power Train“filing this complaint regarding a safety-related defect involving the turbocharger system on my 2018 infiniti q50. the vehicle has approximately 46,000 miles and is 8 years old. infiniti/nissan has acknowledged through its own technical service bulletins (tsbs) that turbocharger failure on 2016–2018 q50 3.0t vehicles is a known defect. nissan’s doc…”
2025-12-10 · Engine“leak in the turbo causing oil to burn and create smoke from the exhaust …”
2025-11-28 · Unknown Or Other“the serpentine belt on my 2018 infiniti q50 sport became contaminated with oil immediately after dealer turbo replacement at the end of august 2025, causing the belt to slip, shred, and be pulled into the engine. this resulted in sudden loss of essential engine functions and poses a significant safety hazard. this failure was caused by improper rep…”
2025-10-15 · Service Brakes, Hydraulic · 88,000 mi“the contact's son owns a 2018 infiniti q50. the contact stated that soon after purchasing the vehicle, there was an abnormal screeching sound coming from the brakes while depressing the brake pedal. there was no warning light illuminated. the contact's son took the vehicle to an independent mechanic to have the brake pads and rotors replaced. howev…”
2025-10-08 · Air Bags“the airbag/srs light is on. i've read on multiple forums that this is a common occurrence with this model and year of infiniti. it did not come on as a result of any accident/incident.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.