2024 Lexus GX 550Fuel Economy & MPG Ratings

Gasoline Standard Sport Utility Vehicle 4WD4-Wheel Drive
2024 Lexus GX 550

Photo: Charles. CC BY 2.0. via Wikimedia Commons

City
15
MPG
Highway
21
MPG
Combined
17
MPG

Trim Comparison

Automatic (S10)
Premium
City
15
Hwy
21
Comb
17
Fuel cost: $4,800/yr
Annual Fuel Cost
$4,800

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings
$-12,000

vs. average new vehicle

EPA Fuel Economy Score: 3/10
GHG Score: 3/10

Environment

CO₂ Tailpipe Emissions
504 g/mile
Annual Petroleum Consumption
17.5 barrels

Specifications

Engine
3.4L 6-cyl
Transmission
10-speed Automatic
Drivetrain
4WD
Body Style
SUV/Crossover
GVWR
Class 2-3 (6,001–10,000 lbs)

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size
3.4L, 6-cylinder
Induction Type
Direct Injection
Fuel Type
Premium Gasoline

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default
$4.490/gal$3,962/yr
California
$5.957/gal$5,256/yr
Texas
$3.888/gal$3,431/yr
Florida
$4.136/gal$3,649/yr
New York
$4.522/gal$3,990/yr
Ohio
$4.510/gal$3,979/yr
Washington
$5.591/gal$4,933/yr
Colorado
$4.618/gal$4,075/yr
Minnesota
$4.344/gal$3,833/yr
Massachusetts
$4.448/gal$3,925/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 17 MPG combined. Regular gasoline prices. Actual costs vary.

NHTSA Safety Ratings

Source: NHTSA (nhtsa.gov)

Safety Equipment

Forward Collision Warning: StandardLane Departure Warning: Standard
15
Owner Complaints
3
Recalls
0
Investigations

Recall History

Source: NHTSA

No recalls reported for this vehicle.

Owner-Reported Problems15 complaints

Source: NHTSA

NHTSA has received 15 owner complaints for the 2024 Lexus GX 550. Top reported issues include electrical system, brakes and engine. The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Electrical System
5
Brakes
3
Engine
3
Power Train
2
Advanced Safety (ADAS)
1
Speed Control
1
Air Bags
1
Structure
1

2024 Lexus GX 550 problems by category: Electrical System: 5 complaints, Brakes: 3 complaints, Engine: 3 complaints, Power Train: 2 complaints, Advanced Safety (ADAS): 1 complaints, Speed Control: 1 complaints, Air Bags: 1 complaints, Structure: 1 complaints.

1
Crashes Reported
0
Fires Reported
1
Injuries Reported

Sample Owner Complaints

Electrical SystemFiled: 11/07/2025ODI#11698260
I have a 2024 Lexus GX 550 Overtrail with about 4,500 miles on it bought in December 2024. I went to start it this afternoon and I got a message saying "Low Steering Power". All the electrical thing…
BrakesFiled: 07/18/2025ODI#11674449
At approximately 6,000 miles we drove this vehicle from Chattanooga to Nashville and back. The interstate has one steep grade. On the decent home the vehicle was violently shaking. It felt as if the c…
SteeringFiled: 03/10/2025ODI#11647369
NEW 2024 GX550, less than 2 months and 3,000 miles of ownership- accelerating to 40 mph and vehicle completely shut off, jolting me forward. All lights on dash lit up, "power steering failure, engine …

Complaint data is sourced from the NHTSA Complaints Database. Reports are filed by vehicle owners and may not reflect confirmed defects. Last updated via NHTSA API.

Related

Lexus GX 550 MPG History
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