Research · Standard Sport Utility Vehicle 4WD

2020 Lexus RX 450HRecalls, problems, MPG & safety

NHTSA lists 0 safety recalls and 50 owner complaints for the 2020 Lexus RX 450H. Most complaints involve air bags (21) and engine (5). The EPA rates it 30 mpg combined, and NHTSA gives it 5 stars overall.

Combined MPG
30mpg
EPA · 1 version
NHTSA overall
5of 5 stars
NCAP crash tests
Safety recalls
0campaigns
NHTSA
Owner complaints
50
Top: air bags
Fuel cost / yr
$2,600est.
EPA estimate, best version
01 —Recalls

Safety recalls

NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2020 Lexus RX 450H as of Nov 11, 2026.
Data from NHTSA Recalls API · synced Nov 11, 2026NHTSA vehicle page
02 —Complaints

Owner complaints by component

50 complaints filed with NHTSA · Mar 2020 – Oct 2026
  1. Air bags21
  2. Engine5
  3. Electrical system4
  4. Tires4
  5. Structure3
  6. Forward collision avoidance3
  7. Fuel/propulsion system2
  8. Vehicle speed control2
  9. Exterior lighting1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each RX 450H model year we’ve synced.

View as table
Model yearNHTSA complaints
202050
202171
Crashes reported
7
Fires reported
0
Injuries reported
4
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 11, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Air bags

21 reports3 crashes
“I am submitting this correspondence to formally report a serious safety incident involving my 2020 Lexus RX 350 and to request a thorough investigation. On Saturday, February 7, while attempting to park the vehicle, I experienced a sudden loss of control, resulting in the vehicle accelerating forward and colliding with a metal gate. The exact cause of this event is unknown. During the incident, the vehicle’s pre-collision and automatic braking system failed to engage despite an obstruction being present. Additionally, the airbags did not deploy at the time of impact. A minor child was present in the vehicle, properly secured in a child's safety seat. While no injuries occurred, the vehicle sustained extensive damage and was rendered inoperable. I would also like to note that this vehicle was subject to an airbag recall on November 29, 2025, which was serviced prior to this incident. Despite completing the recall service, the airbags failed to deploy during the accident. After the vehicle was towed, the airbags unexpectedly deployed while it was being lifted onto the tow truck using a crane, further raising concerns regarding the reliability and safety of the airbag system.”
Owner complaint to NHTSAFiled Feb 16, 2026Air bags, Forward collision avoidanceCrash reportedODI 11718294

Engine

5 reports2 crashes
“While driving the engine stalls. It has jolted back-and-forth at times and had to be taken to a dealer. It’s still stalls when trying to slowly accelerate especially uphills. Low gas mileage barely getting 18 miles per gallon. Warning lights flickering while car stallling. It’s like it’s having a seizure. This has happened a few times.”
Owner complaint to NHTSAFiled May 27, 2026Engine, Fuel/propulsion systemODI 11740288

Electrical system

4 reports2 crashes
“I own a 2020 Lexus RX 450h with approximately 129,803 miles. The check engine light came on and the vehicle stored diagnostic trouble code P0A2D, which indicates a failure of the drive motor/temperature sensor circuit that is integrated into the transmission/hybrid motor assembly. According to the Lexus dealer’s diagnosis, the temperature control sensor located on the transmission/hybrid drive unit has failed. Because Lexus designed this sensor as part of the transmission assembly, the dealer has stated the sensor cannot be replaced separately and that the only repair is to replace the entire transmission. Lexus is refusing to acknowledge this as a manufacturing defect and is requiring me, the consumer, to pay the full cost of a complete transmission replacement, estimated at approximately 9,040.03, solely due to the failure of this internal temperature sensor. This is a critical component used to monitor drive motor/transmission temperature. A malfunctioning sensor of this type can lead to improper system operation, possible overheating, loss of power, or unpredictable behavior of the hybrid drive system while the vehicle is in motion, which presents a safety…”
Owner complaint to NHTSAFiled Mar 12, 2026Power train, Electrical system, EngineODI 11723917
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026
04 —Key specs

Engines, transmissions & drive

1 version rated by the EPA
EPA class
Standard Sport Utility Vehicle 4WD
Engines
3.5L 6-cyl hybrid
Transmissions
Automatic (AV-S6)
Drive
All-Wheel Drive
Fuel
Premium Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 11, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
RX 450h AWD
Auto (AV-S6), 6 cyl, 3.5 L · All-Wheel Drive
312830$2,600297
  • RX 450h AWD
    Auto (AV-S6), 6 cyl, 3.5 L
    31 city · 28 hwy · $2,600/yr
    30
    mpg comb.
Data from EPA fueleconomy.gov · synced Nov 11, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

1 tested variant
Overall rating
5/ 5
5 of 5
Lexus RX 450h SUV AWD
Frontal crash
4 of 5
Side crash
5 of 5
Side pole
5 of 5
Rollover
4 of 5
Rollover risk
16.4%
Data from NHTSA NCAP Safety Ratings API · synced Nov 11, 2026Vehicle 14712
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2020 RX 450H questions

How many recalls does the 2020 Lexus RX 450H have?

0 recalls found in NHTSA data as of Nov 11, 2026.

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

Owners filed 50 complaints with NHTSA. The most-cited components are air bags (21), engine (5), electrical system (4). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2020 Lexus RX 450H get?

The EPA rates the 2020 Lexus RX 450H at 30 mpg combined, depending on engine and drivetrain (1 version rated).

How safe is the 2020 Lexus RX 450H?

NHTSA's New Car Assessment Program gives the 2020 Lexus RX 450H 5 out of 5 stars overall.

Data from NHTSA & EPA · synced Nov 11, 2026