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Infiniti · Midsize car

2018 Infiniti Q50

HybridGas

Midsize Cars
8 EPA-rated configurations
Data refreshed 2026-09-11

Safety Signal

81 / 100 from the NHTSA recall record

RecallsNHTSA campaigns3

Complaintsowner reports to NHTSA43

Crash ratingNHTSA overall—

Fuel economybest combined, EPA29 mpg

2024 2023 2022 2021 2020 2019 2018 2017 2016

The 2018 Infiniti Q50 is sold in the U.S. as a hybrid and gas midsize car with 8 EPA-rated configurations. The most efficient version, the Q50 Hybrid, is EPA-rated at 29 mpg combined. NHTSA lists 3 recall campaigns for this model year, which gives it a Safety Signal grade of B. Owners have filed 43 complaints, most often about the engine.

Specs & fuel economy

Source: EPA fueleconomy.gov

Configuration	Powertrain	Drive	Engine / motor	City	Hwy	Comb	Annual fuel*
Q50 Hybrid	Hybrid	RWD	3.5L 6-cyl + 346V Li-Ion	27	32	29	$2,650
Q50 Hybrid AWD	Hybrid	AWD	3.5L 6-cyl + 346V Li-Ion	26	30	28	$2,750
Q50	Gas	RWD	2.0L 4-cyl turbo	23	30	25	$3,100
Q50 AWD	Gas	AWD	2.0L 4-cyl turbo	22	28	24	$3,250
Q50	Gas	RWD	3.0L 6-cyl turbo	20	29	23	$3,350
Q50 AWD	Gas	AWD	3.0L 6-cyl turbo	19	27	22	$3,500
Q50 Red Sport	Gas	RWD	3.0L 6-cyl turbo	20	26	22	$3,500
Q50 Red Sport AWD	Gas	AWD	3.0L 6-cyl turbo	19	26	22	$3,500

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 39147, 39148, 38931, 38932, 38927, 38928, 38929, 38930.

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Recalls (3)

Source: NHTSA recall database

▲high

Power Train

R24A5, R24A7

7,222 vehicles

ProblemNissan 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.RiskA 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.FixDealers 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.

NHTSA campaign 24V470000reported Jun 21, 2024Nissan North America, Inc.

○minor

Back Over Prevention

1,228,830 vehicles

ProblemNissan 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 and the system will retain that setting the next time the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numRiskThe lack of an image in the back-up camera display increases the risk of a crash.FixNissan 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.

NHTSA campaign 19V654000reported Sep 12, 2019Nissan North America, Inc.

▲high

Fuel System, Gasoline

14,192 vehicles

ProblemNissan 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.RiskAn engine stall can increase the risk of a crash.FixNissan 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.

NHTSA campaign 17V476000reported Jul 27, 2017Nissan North America, Inc.

NHTSA defect investigations

Electrical System:Propulsion System — Pedestrian alert sounds closed

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matt

Opened Jan 27, 2023 · closed Aug 7, 2023 · action DP22005

Owner complaints

Source: NHTSA complaint database

43complaints filed

1 involved a crash · 1 a fire · 0 injuries · 0 deaths reported

Filed per year: 2018: 6 · 2019: 5 · 2020: 5 · 2022: 1 · 2023: 6 · 2024: 5 · 2025: 10 · 2026: 5

Most-cited components

Engine17

Air Bags8

Unspecified6

Fuel/Propulsion System6

Electrical System6

Wheels3

What owners describe

“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 2016â€“2018 Q50 3.0T vehicles…”Jan 7, 2026 · Power Train · NHTSA owner report

“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 fail…”Nov 28, 2025 · Engine · NHTSA owner report

“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 p…”Oct 15, 2025 · Engine And Engine Cooling · NHTSA owner report

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Crash ratings

Source: NHTSA NCAP

Configuration	Overall	Frontal	Side	Rollover	Rollover risk
4 DR AWD	not rated	not rated	not rated	★★★★★	10%
4 DR AWD	not rated	not rated	not rated	★★★★★	10%
4 DR RWD	not rated	not rated	not rated	★★★★★	10%
4 DR RWD	not rated	not rated	not rated	★★★★★	10%

NHTSA New Car Assessment Program.

Other Q50 model years

2024 Infiniti Q50

0 recalls · 0 complaints

2023 Infiniti Q50

0 recalls · 8 complaints

2022 Infiniti Q50

0 recalls · 1 complaints

2021 Infiniti Q50

3 recalls · 4 complaints

2020 Infiniti Q50

0 recalls · 3 complaints

2019 Infiniti Q50

1 recalls · 30 complaints

2017 Infiniti Q50

4 recalls · 62 complaints

2016 Infiniti Q50

4 recalls · 39 complaints

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.

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