Research · Standard Sport Utility Vehicle 4WD

2018 Lexus RX450HRecalls, problems, MPG & safety

NHTSA lists 0 safety recalls and 29 owner complaints for the 2018 Lexus RX450H. Most complaints involve service brakes (7) 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
29
Top: service brakes
Fuel cost / yr
$2,650est.
EPA estimate, best version
01 —Recalls

Safety recalls

NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2018 Lexus RX450H as of Oct 29, 2026.
Data from NHTSA Recalls API · synced Oct 29, 2026NHTSA vehicle page
02 —Complaints

Owner complaints by component

29 complaints filed with NHTSA · Feb 2020 – Sep 2026
  1. Service brakes7
  2. Engine5
  3. Structure3
  4. Fuel/propulsion system3
  5. Electrical system3
  6. Forward collision avoidance2
  7. Vehicle speed control2
  8. Air bags1
  9. Steering1

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 RX450H model year we’ve synced.

View as table
Model yearNHTSA complaints
201136
201215
201331
201414
201525
201635
201757
201829
201937
Crashes reported
3
Fires reported
0
Injuries reported
2
Deaths reported
0
Data from NHTSA Complaints API · synced Oct 29, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Service brakes

7 reports1 crash
“1. At [XXX] on [XXX], I was pulling into my gym's parking lot, when I stepped on the break to park my car, instead of stopping, the car accelerates rapidly and crashed through the other side of the sidewalk where there were light pole and cement walls, throwing me forward and backward with seat belt on, I was in total shock! 2. My insurance sent a field inspector to the body shop 2X in hope to repair my car but ended up declaring it a Total Loss. 3. Lexus said they would send a field tech to get the EDR (Event Data Recorder) data from my 2018 Lexus RX350 within 30 days, but the results won't be available for 30-45 days after that. Lexus's slow response to this accident concerns and disappoints me b/c it was a serious crash that Lexus should treat it seriously and promptly. 4. The disbelief of a 'young' car with only 12297 miles could have issues like this puzzled me and drove me to do a lot of online research, then I came across this site [XXX] which contains an article titled '10 Common Problems of A Lexus RX350'. Problem #5 described exactly what had happened to me: 'ONE RECURRING PROBLEM THIS CAR HAS IS THAT THE SYSTEM MALFUNCTIONS SEVERELY. THIS TYPICALLY…”
Owner complaint to NHTSAFiled Oct 23, 2024Vehicle speed control, Service brakesCrash reportedODI 11621427

Engine

5 reports
“Car dead stopped two times in the middle of roads. No warning. No signal. Just hard stopped.”
Owner complaint to NHTSAFiled Sep 29, 2026EngineODI 11767867

Structure

3 reports
“The contact owns a 2018 Lexus RX 350. The contact stated that upon arriving to the residence and parking the vehicle, the front driver’s side door failed to open while pulling on the interior door handle. The contact rolled down the window and was able to open the front driver’s side door while pulling the exterior door handle. The vehicle was taken to a local dealer, where it was diagnosed that the front driver’s side door handle needed to be replaced. The vehicle was not repaired. Upon further investigation, the contact related the failure to Lexus Special Service Campaign Number: 20LC02. The manufacturer was made aware of the failure. The failure mileage was approximately 47,518.”
Owner complaint to NHTSAFiled Aug 1, 2025StructureODI 11677722
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 29, 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 Oct 29, 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$2,650297
  • RX 450h AWD
    Auto (AV-S6), 6 cyl, 3.5 L
    31 city · 28 hwy · $2,650/yr
    30
    mpg comb.
Data from EPA fueleconomy.gov · synced Oct 29, 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 RX450h 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 Oct 29, 2026Vehicle 12309
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

2018 RX450H questions

How many recalls does the 2018 Lexus RX450H have?

0 recalls found in NHTSA data as of Oct 29, 2026.

What are the most common 2018 Lexus RX450H problems?

Owners filed 29 complaints with NHTSA. The most-cited components are service brakes (7), engine (5), structure (3). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2018 Lexus RX450H get?

The EPA rates the 2018 Lexus RX450H at 30 mpg combined, depending on engine and drivetrain (1 version rated).

How safe is the 2018 Lexus RX450H?

NHTSA's New Car Assessment Program gives the 2018 Lexus RX450H 5 out of 5 stars overall.

Data from NHTSA & EPA · synced Oct 29, 2026