LexusRX3502023Overview/lexus/rx350/2023/base/

2023 Lexus RX350

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2023 RX350.

Transmission Automatic (S8)

The 2023 Lexus RX350 is equipped with an Automatic (S8) transmission and carries an EPA rating of 22/29/25 mpg. Early reliability records count 57 owner complaints and four recalls, with "Unknown Or Other" registering as the top complaint area. Set against the model’s 2004–2019 history—where complaints bottomed at 26 in 2014 and peaked at 225 in 2007—that 2023 tally falls closer to the historical low than the prior peak, placing it in the lower range of the lineage’s documented reliability history.

Model year202520242023202220212020201920182017

Quick specs

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

Lug nut torque76.0 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

OE service part numbers OEM · verified

Engine oil filter90915YZZN1
Engine air filter17801F0050
Spark plug90919A1008
Battery2880025050
Front wiper blades8522248200 alt 8521248190
Serpentine belt9091602668 alt 90916A2030
Thermostat16342F0010 alt 16343F0010
Cabin air filter871390E040 alt 8713976020

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S8)

Ratings & economy EPA / vPIC

EPA city / highway / combined22 / 29 / 25 mpg
DrivetrainFront-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
Front Wheel Hub217 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 System (inspect) · Floor Mat (inspect) · Fuel Tank (add fluid conditioner) · Tire & Wheel Assembly (rotate) · Universal Vehicle Operation (road test) · Windshield Wiper Blade (inspect)
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) · Differential (inspect fluid level) · 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)
At 60,000 miAccessory Drive Belt (inspect)
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.

The 2023 Lexus RX350 ushers in the 5th generation, and the federal year-by-year record provided only covers 2004–2019, so a direct year-over-year comparison is limited—but that historical arc is still informative. Within it, complaints peaked sharply in 2007 (225) and 2008 (195) before declining with volatility to a low of 26 in 2014 and rising again to 91 in 2017, while recalls remained modest at 0–4 annually and topped out at 4 in 2019. The 2023-specific data shows complaints distributed thinly across Unknown/Other (12), Structure (8), Electrical System (6), and Engine (5), with 5 crash-related complaints and zero fire-related complaints—meaning no single defect cluster dominates. Because 2023 represents a complete redesign, it effectively launches a new reliability arc rather than continuing the prior one, and the scattered, low-volume complaint profile with no fire incidents is an encouraging early indicator. On balance, the 2023 RX350 is a defensible used-buy candidate, provided you confirm that any 2023 recalls and electrical-related TSBs have been completed before purchase.

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 by model year NHTSA · this generation & adjacent

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 RX350. 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 RX350 have open recalls?

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

What gas mileage does the RX350 get?

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