Model year guide

2020 Lexus RX 450H

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2020 Lexus RX 450H is worth — from official NHTSA and EPA data. 149 on record.

2020 Lexus RX 450H — representative photo
Representative photo

2020 Lexus RX 450H at a glance

Safety recallsNone
Owner complaints48
Overall safety5 / 5 ★
Combined29–30 mpg

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2020 Lexus RX 450H recalls 0

No NHTSA safety-recall campaigns are on record for the 2020 Lexus RX 450H.

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2020 Lexus RX 450H common problems

The most-reported problem areas across all 48 owner complaints filed with NHTSA — and what to check before you buy.

Air Bags
Confirm the airbag light turns on then off at startup — if it stays lit there's a fault (costly, and a safety risk). Check for signs of prior deployment.
Engine
Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Tires
Check tread depth, the DOT age date, and that all four tires match with even wear. Look for bulges or cracks.
Forward Collision Avoidance
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
Fuel/propulsion System
Check for fuel or battery warnings, hard starts and stalling. On a hybrid/EV, confirm charging and range behave normally.

2020 Lexus RX 450H safety ratings

Overall★★★★★
Frontal crash★★★★★
Side crash★★★★★
Rollover★★★★★
Frontal — driver★★★★★
Frontal — passenger★★★★★
Side — front seat★★★★★
Side — rear seat★★★★★
Side pole★★★★★

Rollover risk: 16.4% — NHTSA's estimated chance of rollover in a single-vehicle crash (dynamic test: no tip).

Source: NHTSA 5-Star Safety Ratings (NCAP), tested as the 2020 Lexus RX 450h SUV AWD. Ratings can differ by body style and drivetrain.

2020 Lexus RX 450H MPG & running costs

Combined29–30 mpg
City30 mpg
Highway28 mpg
Est. annual fuel cost$2,800
EPA size classStandard Sport Utility Vehicle 4WD
TransmissionAutomatic (AV-S6)
Engine start-stopYes
5-yr fuel cost vs average new car$2,000 more

Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 2 versions of this model year; combined is shown as a range and the other figures are averages.

Estimated 5-year cost to own

A rough guide to what running a 2020 Lexus RX 450H costs over five years and 75,000 miles.

Fuel (5 yrs)$14,000
Fuel only$14,000
Per mile$0.19

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Dimensions & weight

Length
192.5 in
Width
74.8 in
Height
67.7 in
Wheelbase
109.8 in
Curb weight
4,740 lb
Front track
64.6 in
Rear track
64.2 in

Manufacturer-reported figures for the 2020 Lexus RX 450H. Source: Transport Canada vehicle specifications via NHTSA.

Investigations & service bulletins

NHTSA defect investigations 1

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…

NHTSA #DP22005 · Electrical System · opened Jan 2023 · closed Aug 2023

An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.

Manufacturer service bulletins 111

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 111.

Some 2018 – 2023 model year LC 500, and LC 500h, 2021 – 2023 model year LC 500c, 2018 – 2023 model year LS 500, and LS 500h, 2015 model year RX 450h, and 2018 – 2022 model year RX 450h vehicles may exhibit a condition in which the brake, ABS, and/or TRAC warni…

Bulletin L-SB-0028-26 · Service Brakes · Sep 2026

OBSOLETE NOTICE February 2, 2026: This bulletin is now obsolete. Please see L-SB-0004-26.

Bulletin L-SB-0057-22 Rev2 · Electrical System · Feb 2026

Some 2018 – 2025 model year Lexus vehicles equipped with the Enform™ 2.0 Navigation System, require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.

Bulletin L-SB-0004-26 · Electrical System · Jan 2026

Some 2005 – 2026 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to pr…

Bulletin L-SB-0030-24 Rev2 · Structure · Dec 2025

Some customers may experience operational difficulties with some telematics features which they cannot resolve on their own. These resources, in conjunction with the Repair Manual, are for dealership personnel to assist those customers with user issues, user e…

Bulletin L-TT-0326-23 Rev2 · Electrical System · Aug 2025

The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.

Bulletin L-SB-0043-23 Rev1 · Electrical System · Jun 2025

To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested b…

Bulletin L-TT-0341-25 · Electrical System · Apr 2025

To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested b…

Bulletin L-TT-0341-25 · Electrical System · Apr 2025

Some 2010 – 2026 model year Lexus vehicles may exhibit paint stains after the removal of Rapgard™. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard™. The wrinkles may trap water and cause the paint to stain f…

Bulletin L-SB-0017-19 Rev1 · Structure · Feb 2025

Some 2010 – 2026 model year Lexus vehicles may exhibit paint stains after the removal of Rapgard™. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard™. The wrinkles may trap water and cause the paint to stain f…

Bulletin L-SB-0017-19 Rev1 · Structure · Feb 2025

Source: NHTSA Office of Defects Investigation, listed for the RX 450H AWD. Model-year data, not specific to one car.

Canadian recalls 1

Transport Canada recall campaigns for the 2020 Lexus RX 450H. Relevant if the car was first sold in, or imported from, Canada.

Airbag

Issue: On certain vehicles, a sensor for the occupant classification system (OCS) may not have been manufactured properly. As a result, the sensor could short circuit and cause the airbag system to turn off the passenger-front airbag even when a passenger is seated. Note: This problem would cause a warning message to display on the instrument panel and the airbag indicator ligh…

Transport Canada #2023684 · Dec 2023

Source: Transport Canada Motor Vehicle Safety Recalls Database.

About the Lexus RX 450H

The Lexus RX is a luxury crossover SUV sold since 1998 by Lexus, a luxury division of Toyota. Originally released in its home market of Japan in late 1997 as the Toyota Harrier, export sales began in March 1998 as the Lexus RX.

From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.

2020 Lexus RX 450H vehicles on record

Other Lexus RX 450H model years

2020 Lexus RX 450H — frequently asked questions

Does the 2020 Lexus RX 450H have any safety recalls?

NHTSA lists no safety-recall campaigns for the 2020 Lexus RX 450H. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What are the most common problems with the 2020 Lexus RX 450H?

Across all 48 owner complaints filed with NHTSA, the most-reported problem areas are air bags, engine, electrical system.

What is the 2020 Lexus RX 450H safety rating?

NHTSA gives the 2020 Lexus RX 450H an overall crash-test rating of 5 out of 5 stars (frontal 4★, side 5★, rollover 4★).

What gas mileage does the 2020 Lexus RX 450H get?

The 2020 Lexus RX 450H has U.S. EPA estimates of 29–30 mpg combined, depending on engine and trim (2 versions).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.