LexusRX350h2023Overview/lexus/rx350h/2023/base/

2023 Lexus RX350h

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2023 RX350h.

Transmission Automatic (AV-S6)

The 2023 Lexus RX350h is a luxury hybrid SUV that combines an automatic transmission (AV-S6) with EPA-estimated efficiency of 37 city, 34 highway, and 36 combined mpg. Owner feedback for this model year includes 57 complaints, predominantly categorized as “Unknown Or Other,” alongside 4 recalls. This record places the 2023 RX350h in a context where its complaint volume is relatively contained, though the recall count warrants attention when evaluating its early reliability standing.

Model year202520242023

Quick specs

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

Lug nut torque76.0 ft-lbsOEM · verified
EPA fuel economy37/34/36 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

OE service part numbers OEM · verified

Engine oil filter90915YZZN1
Engine air filter17801F0020 alt 1780177050
Spark plug9091901289
Front wiper blades8521248190 alt 8522248200
Thermostat1632625010 alt 1603125040
Cabin air filter871390E040 alt 8713976020

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (AV-S6)

Ratings & economy EPA / vPIC

EPA city / highway / combined37 / 34 / 36 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 DOT 3 · SAE J1703 · DOT 4 · SAE J1704 brake fluid. Torque lug nuts to 97.0 ft-lbs.

Lubricants & capacities

Brake FluidDOT 3 · SAE J1703 · DOT 4 · SAE J1704

Chassis torques

Lug Nuts76.0 ft-lbs
Lug Nuts76.0 ft-lbs
Lug Nuts103.0 ft-lbs
Lug Nuts97.0 ft-lbs

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 60,000 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 System (inspect) · Floor Mat (inspect) · Fuel Tank (add fluid conditioner) · Hybrid Battery Compartment Air Filter (inspect) · 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) · Driveshaft Flange Yoke (torque) · Engine Coolant System (inspect fluid level) · Exhaust System (Complete) (inspect)
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 50,000 miEngine Coolant System (drain, flush & refill)
At 60,000 miAccessory Drive Belt (inspect)
Every 60,000 miSpark Plugs (replace)
At 100,000 miEngine Coolant System (drain, flush & 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 RX350h lead in one area — the unknown or other, 12 of 57 reports (21%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 5 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
132
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
57
Owner complaints
5 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★
Frontal★★★★
Side★★★★★
Rollover★★★★

Owner complaints filed with NHTSA, by component

All 57 complaints on record, top 8 components.

Unknown Or Other12
Structure8
Electrical System6
Engine5
Power Train4
Power Train,Engine2
Back Over Prevention2
Lane Departure2

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 132 bulletins on record with NHTSA.

BulletinDateComponentSummary
L-SB-0033-24 Rev22026-06-12Power TrainSome 2023 – 2024 model year RX 350, RX 350h, RX 500h, and 2024 model year TX 350 and TX…
L-SB-0010-262026-04-24EngineSome customers of 2023 – 2025 model year RX 350h, RX 500h, and 2024 – 2025 model year TX…
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…

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 RX350h. 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

Does the 2023 RX350h have open recalls?

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

What gas mileage does the RX350h get?

EPA figures are 37 city / 34 highway / 36 combined mpg.