LexusRX450h2014Overview/lexus/rx450h/2014/base/

2014 Lexus RX450h

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2014 RX450h.

Body SUVTransmission Automatic (AV-S6)

The 2014 Lexus RX450h is a hybrid SUV equipped with an Automatic (AV-S6) transmission and achieves EPA fuel economy ratings of 31/28/29 mpg across city, highway, and combined driving respectively, requiring 6.4 quarts of 0W-20 API-rated engine oil for maintenance. As part of a model lineage spanning 2011 to 2023, the 2014 model year demonstrated the beginning of an improving reliability trajectory, with only 13 total owner complaints filed and zero recalls—a stark contrast to the peak of 55 complaints recorded for the 2017 model year within the same series. This complaint level positions the 2014 RX450h among the more dependable iterations of the model, with complaint rates trending downward significantly in subsequent years, reaching a low of just one complaint by 2023.

Model year202520242022202120202019201820172014

Quick specs

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

Engine oil capacity6.4 qtOEM · verified
Engine oil type0W-20 APIOEM · verified
Lug nut torque76 ft-lbsOEM · verified
EPA fuel economy31/28/29 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI S55D23R Hybrid · 360 CCA battery, OE oil filter 9030179006. 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.

Battery groupBCI S55D23R Hybrid · 360 CCAOEM · verified
Tail / brake / turnHZSWOEM · verified
Tire sizeP235-60R18OEM · verified
Wheel / rim7.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter9030179006 alt 9672335028
Engine air filter1780131141
Spark plug9091901247
Battery2880031293
Front wiper blades852120E020 alt 8522252170
Serpentine belt99367K0810
Thermostat90916A3002 alt 1632562010
Cabin air filter8713950100 alt 8713907020

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (AV-S6)

Dimensions & weight NHTSA vPIC

Overall length187.8 in
Overall width74.4 in
Overall height67.7 in
Wheelbase107.9 in
Curb weight4652 lb
Track (front / rear)64.2 / 63.8 in
Weight distribution (front / rear)54/46

Ratings & economy EPA / vPIC

EPA city / highway / combined31 / 28 / 29 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 holds 6.4 qt of 0W-20 API engine oil. Torque lug nuts to 76 ft-lbs, the oil drain plug to 29.0-30.0 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Engine Oil0W-20 · API
Engine Oil Capacity6.4 qt

Engine torques

Crankshaft Pulley and/or Damper Bolts184 ft-lbs
Engine Flywheel Bolts61 ft-lbs
Engine Oil Pan Drain Plug29.0-30.0 ft-lbs

Chassis torques

Lug Nuts76 ft-lbs
Front Wheel Hub217 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
Curb Idle Speed (No Load)900 rpm
Curb Idle Speed Variance (No Load)50 rpm

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.21-1.43 lbs
Oil TypeND 11 oil or equivalent
Oil Capacity4.10-4.61 oz
Standard BCI Group NumberS55D23R Hybrid
Standard BCI Cranking Performance360 cca

Service checks

Residual Pressure21.0 psi
Injector Primary Resistance2.01-2.31 @ 68 degreesF ohms
Injector Primary Resistance3-100 Motor ohms
Engine Compression109-145 PSI. 15 Maximum variation PSI
Engine Oil Pressure5.8 psi @ Idle, 29 psi @ 2500
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

Torque Caliper to Bracket25 ft-lbs / 20 ft-lbs
Torque to Knuckle77 ft-lbs / 58 ft-lbs
Minimum Pad ThicknessFront: 0.039; Rear: 0.040 in
Rotor Runout Limit0.002 in / 0.0059 in
Rotor Nominal Thickness From1.102 in / 0.394 in
Rotor Nominal Thickness To1.102 in / 0.394 in
Rotor Discard at or Under0.984 in / 0.335 in

Multi-step torque procedures OEM · verified

Main Bearings — tightening sequence 1 stages
145 ft. lbs., Step 2: 9045 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; 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) · Tire & Wheel Assembly (rotate) · Universal Vehicle Operation (road test) · Windshield Wiper Blade (inspect)
Every 10,000 miEngine 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) · Cabin Air Filter (replace) · Differential (inspect fluid level) · Engine Air Filter Element (replace) · Fuel Evaporative Emission Control System Lines (inspect)
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)
Every 100,000 miTransmission Assembly (inspect fluid level)

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 2014 RX450h sits at a notable low point in the generation's complaint trajectory, recording just 13 complaints — the fewest of any full production year before the 2023 tail — and zero recalls, matching the clean recall record of 2011 through 2015. Complaints dipped from 31 in 2013 to 13 in 2014 before rising again to 25 in 2015, while TSB volume fell from a generation-high 278 in 2013 to 239 in 2014, continuing a gradual decline that accelerated after 2015. The first recalls for this generation appear in 2016 (two campaigns), followed by a sharp complaint spike to 55 in 2017, suggesting 2014 precedes both the recall onset and the later reliability deterioration. The 2014 complaint profile shows only three categorized issues — two air-bag reports and one each for service brakes and hydraulic brakes — with the remaining three complaints listed as unknown; the data does not specify root causes. With three crash-related complaints and no fire reports, the safety footprint remains modest. Taken together, the 2014 model year represents one of the strongest federal-record entries in this generation and is a good year to buy.

0
Open recalls
NHTSA campaigns
239
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
13
Owner complaints
3 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 13 complaints on record, top 8 components.

Unknown Or Other3
Air Bags2
Service Brakes1
Service Brakes, Hydraulic1
Structure1
Tires1
Power Train1
Fuel/Propulsion System1

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 239 bulletins on record with NHTSA.

BulletinDateComponentSummary
L-SB-0030-24 Rev22025-12-15StructureSome 2005 – 2026 Lexus vehicles that have undergone water intrusion may exhibit a…
L-SB-0043-23 Rev12025-06-13Electrical SystemThe air conditioning dye injection tool kit has been developed to aid in identifying the…
L-SB-0017-19 Rev12025-02-07StructureSome 2010 – 2026 model year Lexus vehicles may exhibit paint stains after the removal of…
L-SB-0017-19 Rev12025-02-07StructureSome 2010 – 2026 model year Lexus vehicles may exhibit paint stains after the removal of…
L-SB-0030-24 Rev12024-07-29StructureSome 2005 – 2024 Lexus vehicles that have undergone water intrusion may exhibit a…

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 RX450h. 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 2014 RX450h take?

6.4 qt of 0W-20 API, per the factory manual.

Does the 2014 RX450h have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the RX450h get?

EPA figures are 31 city / 28 highway / 29 combined mpg.