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2003 Lexus IS

US · Compact Cars

The 2003 Lexus IS is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.

Engine
3.0L 6-cylinder
Transmission
Varies by configuration: 5-speed automatic, 5-speed manual
Drivetrain
RWD
Fuel
Gasoline
Economy
18 mpg (13.1 L/100 km) combined
Generic outline for this body type. An illustration, not a photograph.
Specifications at a Glance

Key Figures

Units:
Engine / Powertrain
3.0L 6-cylinder
Combined Economy
18 MPG US (13.1 L/100 km) · EPA
Drivetrain
RWD
Transmission
5-speed automatic, 5-speed manual
Market: US·Switch units to convert the figures shown.
Compare 2003 Lexus IS ↗

Engine

Engine
SpecificationValueSource
Engine3.0L 6-cylinder
Displacement3.0 L
Cylinders6
Fuel typeGasoline

Transmission and drivetrain

Transmission and drivetrain
SpecificationValueSource
TransmissionVaries by configuration: Automatic, Manual
Gears5
DrivetrainRWD

Fuel economy and range

Fuel economy and range
SpecificationValueSource
Combined18 mpg (13.1 L/100 km)
City16 mpg (14.7 L/100 km)
Highway22 mpg (10.7 L/100 km) to 23 mpg (10.2 L/100 km)

Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.

Trims and configurations

2 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.

Recalls

NHTSA lists 1 recall campaign for this model year. Last checked November 4, 2026.

  • 09E012000: EXTERIOR LIGHTING

    SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.

    Remedy: SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON MAY 11, 2009. OWNERS MAY CONTACT SABERSPORT AT 1-909-598-7589.

    Reported April 7, 2009. View on NHTSA

Data sources

  • EPA fueleconomy.gov · retrieved November 9, 2026 · US Government public data
  • NHTSA vPIC · retrieved October 18, 2026 · US Government public data

Source checked: November 9, 2026

Data verified: November 9, 2026

Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.

Related vehicles

  • 3.0L 6-cylinder · RWD
    19 mpg (12.4 L/100 km) to 18 mpg (13.1 L/100 km)

  • 3.0L 6-cylinder · RWD
    18 mpg (13.1 L/100 km)

Frequently asked questions

What engine does the 2003 Lexus IS have?

3.0L 6-cylinder. Engines can differ by trim, so check the trim list below.

What is the fuel economy of the 2003 Lexus IS?

Combined fuel economy is 18 mpg (13.1 L/100 km), as published by the source shown in the specification table.

Is the 2003 Lexus IS front-wheel, rear-wheel or all-wheel drive?

Drivetrain: RWD.

Are there recalls for the 2003 Lexus IS?

NHTSA lists 1 recall campaign for this model year (last checked November 4, 2026). Details are in the Recalls section.