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2003 Hyundai XG

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2003 XG.

Body PASSENGER CARTransmission Automatic 5-spd

Classified as a passenger car, the 2003 Hyundai XG pairs a 5-speed automatic transmission with EPA fuel economy ratings of 15/24/18 mpg. The vehicle's reliability history for this model year is marked by 20 total owner complaints, where Air Bags surface as the top complaint area alongside 3 recalls. This data places the model year within a reliability context defined by these 20 incidents, signaling researchers to investigate the specific Air Bags concerns as the dominant reported issue.

Model year2005 2004 2003 2002 2001

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Lug nut torque65-80 ft-lbsOEM · verified

EPA fuel economy15/24/18 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

Tail / brake / turnLAMPOEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic 5-spd

Dimensions & weight NHTSA vPIC

Overall length	191.3 in
Overall width	72 in
Overall height	55.9 in
Wheelbase	108.3 in
Curb weight	3651 lb
Track (front / rear)	61.4 / 60.6 in
Weight distribution (front / rear)	62/38

Ratings & economy EPA / vPIC

EPA city / highway / combined	15 / 24 / 18 mpg
Drivetrain	Front-Wheel Drive
Passenger volume	103 cu ft
Cargo volume	15 cu ft
Recommended fuel	Regular Gasoline

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

Torque lug nuts to 65-80 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Engine Coolant

ETHYLENE GLYCOL

Chassis torques

Lug Nuts

65-80 ft-lbs

Ignition

Cylinder Firing Order	1-2-3-4-5-6
Spark Plug Manufacturer	NGK
Spark Plug Gap	0.037-0.043 in
Spark Plug Torque	15.0 ft-lbs

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	1.40-1.50 lbs
Oil Group	PAG
Oil Type	46
Oil Capacity	4.80-5.07 oz

Service checks

Pressure Test	21 psi
Radiator Cap Pressure Relief	14-18 psi
Thermostat Opening Temperature	176-183 °F
Injector Primary Resistance	13-16 @ 68 degreesF ohms

Brakes

Torque Caliper to Bracket	74 ft-lbs / 20 ft-lbs
Torque to Knuckle	66-81 ft-lbs / 74 ft-lbs
Minimum Pad Thickness	Front: 0.079; Rear: 0.079 in
Rotor Max Parallel Variation	0.0002 in
Rotor Runout Limit	0.0012 in
Rotor Nominal Thickness From	1.02 in / 0.39 in
Rotor Nominal Thickness To	1.02 in / 0.39 in
Rotor Minimum Machining	0.96 in / 0.31 in

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 3,000 mi; spark plugs every 60,000 mi.

Every 3,000 mi	Engine Oil (drain & refill) · Engine Oil Filter (replace)
Every 7,500 mi	Accessory Drive Belt (inspect) · Axle Shaft Oil Seal (inspect) · Engine Coolant System (leak inspection) · Engine Coolant System Hoses (inspect) · Rack & Pinion Assembly (inspect) · Tire & Wheel Assembly (rotate)
Every 12,000 mi	Cabin Air Filter (replace)
Every 15,000 mi	Air Conditioning System (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Brake Rotor (inspect) · CV Joint Boot (inspect) · Disc Brake Caliper (inspect)
Every 30,000 mi	Brake Drum Assembly (inspect) · Brake Hydraulic System (inspect fluid level) · Engine Air Filter Element (replace) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Fuel System (inspect)
Every 52,500 mi	Fuel Evaporative Emission Control System (inspect) · Fuel Filter (inspect) · PCV Hose (inspect) · Vacuum Line (inspect)
Every 60,000 mi	Spark Plugs (replace) · Timing Belt (replace)
Every 75,000 mi	Drive Belt (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2003 Hyundai XG registers the highest complaint count of the early-generation federal record available, with safety-critical systems dominating the report profile. Air bags (6) and vehicle speed control (4) lead the target year, followed by single entries in suspension and engine/fuel system, and six of these complaints involved crashes — though fire complaints stand at zero. The data does not specify a confirmed root cause for the air bag or speed control failures, and no recalls appear anywhere in the year-by-year record, meaning these issues have not triggered formal OEM remediation. Compared with just 1 complaint in 2000 and 2 in 2001, the upward trend is steep, and the high TSB counts in those earlier years (23 in 2000, 31 in 2001) suggest Hyundai was already working through systemic issues across the generation. For a used buyer, 2003 is the year to approach with the most caution in this lineage — an earlier 2000 or 2001 example would carry a materially lighter federal complaint footprint, and any 2003 candidate should be inspected specifically for air bag system integrity and throttle behavior before purchase.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

6 involved a crash · 0 a fire

NHTSA crash-test rating federal NCAP · out of 5 stars

Rollover★★★★★

Owner complaints filed with NHTSA, by component

All 20 complaints on record, top 8 components.

Air Bags6

Vehicle Speed Control4

Suspension,Unknown Or Other1

Engine & Engine Cooling,Fuel System, Gasoline1

Suspension1

Seat Belts1

Suspension,Electrical System,Air Bags1

Power Train,Vehicle Speed Control1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 55 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
DTN DL	2026-04-10	Air Bags	The National Highway Traffic Safety Administration (NHTSA) has identified the presence of…
DTN DCS	2026-04-10	Air Bags	The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety…
25-BD-012H TSB	2025-11-05	Exterior Lighting	This bulletin provides information regarding condensation related to the accumulated…
24-BD-001H	2024-02-14	Visibility	This bulletin contains information about the proper removal of the windshield wiper blade…
23-EM-005H	2023-10-13	Engine And Engine Cooling	This bulletin provides important checkpoint guidelines when performing engine oil and…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420

Catalyst system efficiency below threshold — Bank 1

P0300

Random / multiple cylinder misfire detected

P0171

System too lean — Bank 1

P0455

Evaporative emission system leak detected — large leak

P0128

Coolant thermostat below regulating temperature

P0442

Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN

Decode a VIN to confirm the transmission and build data for a specific XG. OEM

Build data

Plant, GVWR class, engine and body data for any 17-character VIN.

Recalls

Check open recall campaigns against a specific vehicle by VIN.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBs OBD-II trouble codes Maintenance schedules Fluid capacities & specs

Frequently asked

Does the 2003 XG have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the XG get?

EPA figures are 15 city / 24 highway / 18 combined mpg.