LexusNX3502023Overview/lexus/nx350/2023/base/

2023 Lexus NX350

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2023 NX350.

Transmission Automatic (S8)

The 2023 Lexus NX350's mechanical identity centers on an S8 automatic transmission paired with an engine carrying a 5.6-quart oil capacity requiring 0W-20 or 5W-20 viscosity, yielding an EPA fuel economy rating of 22 city, 29 highway, and 25 combined mpg. Within the model's reliability timeline, this specific year sits at a cautious juncture, marked by 14 total owner complaints predominantly falling under a vague "Unknown Or Other" category alongside four official recalls. For researchers, this convergence of multiple recalls and unspecified complaint areas means the 2023 iteration demands particularly thorough vetting and historical review compared to more established model years.

Model year2025202420232022

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity5.6 qtOEM · verified
Engine oil type0W-20 / 5W-20OEM · verified
Lug nut torque103.0 ft-lbsOEM · verified
EPA fuel economy22/29/25 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses OE oil filter 90915YZZN1. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Tail / brake / turnFUSEOEM · verified
Tire size235/60R18 103HOEM · verified
Wheel / rim7.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter90915YZZN1
Engine air filter17801F0050
Spark plug90919A1008
Battery2880025050
Front wiper blades8521276020 alt 85212F6010
Serpentine belt90916A2030 alt 9091602668
Thermostat16342F0010 alt 16343F0010
Cabin air filter871390E040 alt 8713958010

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S8)

Dimensions & weight NHTSA vPIC

Overall length181.9 in
Overall width73.6 in
Overall height65.7 in
Wheelbase105.9 in
Curb weight3968 lb
Track (front / rear)65.7 / 67.3 in
Weight distribution (front / rear)57/43

Ratings & economy EPA / vPIC

EPA city / highway / combined22 / 29 / 25 mpg
DrivetrainAll-Wheel Drive
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 5.6 qt of 0W-20 / 5W-20 engine oil, 75W-85 in the differential, DOT 3 · SAE J1703 · DOT 4 · SAE J1704 brake fluid. Torque lug nuts to 103.0 ft-lbs.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity7.5 qt
Brake FluidDOT 3 · SAE J1703 · DOT 4 · SAE J1704
Differential Gear Oil75W-85
Differential Gear Oil Capacity0.53 qt
Engine CoolantToyota Super Long Life Coolant
Engine Oil0W-20 · 5W-20
Engine Oil Capacity5.6 qt

Chassis torques

Lug Nuts103.0 ft-lbs

Ignition

Curb Idle Speed (No Load)900 rpm
Curb Idle Speed Variance (No Load)50 rpm

Service checks

Engine Compression145-189 PSI. 14 Maximum variation PSI

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 10,000 mi; spark plugs every 40,000 mi; coolant every 50,000 mi. The big-interval services (every 50,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

At 5,000 miUniversal Vehicle Operation (inspect all fluid levels)
Every 5,000 miBrake Drum Assembly (inspect) · Brake Linings (inspect) · Floor Mat (inspect) · Fuel Tank (add fluid conditioner) · Tire & Wheel Assembly (rotate) · Universal Vehicle Operation (road test)
Every 10,000 miCabin Air Filter (replace) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Universal Vehicle Operation (inspect all fluid levels)
Every 15,000 miAccessory Drive Belt (inspect) · Brake Line (inspect) · CV Joint Boot (inspect) · Differential (inspect fluid level) · Driveshaft Flange Yoke (torque) · Engine Coolant System (inspect fluid level)
Every 30,000 miBrake Hydraulic System (drain, refill & bleed) · Brake Rotor (inspect) · Drive Axle Assembly (inspect) · Engine Air Filter Element (replace) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect)
Every 40,000 miSpark Plugs (replace)
Every 50,000 miEngine Coolant System (drain, flush & refill) · Intercooler (drain & refill)
At 60,000 miAccessory Drive Belt (inspect)
At 100,000 miEngine Coolant System (drain, flush & refill) · Intercooler (drain & refill)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

Owner complaints about the 2023 Lexus NX350 lead in one area — the unknown or other, 3 of 14 reports (21%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 1 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the unknown or other pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

4
Open recalls
NHTSA campaigns
140
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
14
Owner complaints
1 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Frontal★★★★
Side★★★★★

Owner complaints filed with NHTSA, by component

All 14 complaints on record, top 8 components.

Unknown Or Other3
Structure2
Electrical System,Latches/Locks/Linkages1
Exterior Lighting1
Power Train1
Vehicle Speed Control1
Service Brakes1
Air Bags1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 140 bulletins on record with NHTSA.

BulletinDateComponentSummary
L-SB-0017-25 Rev22026-04-17Power TrainOBSOLETE NOTICE April 17, 2026: This bulletin is now obsolete. Please see L-SB-0009-26
L-SB-0009-262026-04-16Power TrainSome 2022 – 2024 model year NX 250 and NX 350, and 2023 – 2024 model year RX 350…
L-SB-0017-25 Rev22026-03-10Power TrainSome 2022 – 2024 model year NX 250 and NX 350, and 2023 – 2024 model year RX 350 vehicles…
L-SB-0021-252026-03-10EngineOBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now…
L-SB-0021-252026-02-27EngineOBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific NX350. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2023 NX350 take?

5.6 qt of Toyota Genuine Motor Oil ILSAC GF-6A 0W-20 or Equivalent. If 0W-20 is unavailable 5W-20 may be used but must be replaced with 0W-20 at the next oil change., per the factory manual.

Does the 2023 NX350 have open recalls?

NHTSA lists 4 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the NX350 get?

EPA figures are 22 city / 29 highway / 25 combined mpg.