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Service bulletins for the 2003 Hyundai Sonata

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

78 on file from NHTSA, as of 2026-10-19.

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By component

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
21-EM-004H2021-04-07. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps.
21-BR-002H2021-04-07. Service bulletin. SERVICE BRAKES; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides best practice recommendations when performing brake service procedures.
21-EM-003H2021-04-06. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
20-BD-014H2020-08-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; EXTERIOR LIGHTING. This bulletin provides information regarding condensation related to moisture accumulation in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. The TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes, or during normal driving operation.
20-BD-007H-12020-06-06. Service bulletin. EQUIPMENT. This bulletin describes the general guidelines to help disinfect and protect vehicle exterior/interior surfaces using recommended safe chemical products.
20-EE-003H2020-05-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information on identifying dealer stock vehicles with either: • A Battery SOC alert - low Battery State of Charge (SOC) at or below 50%. • A 30 Day alert - vehicle has not started and reported an SOC in 30 days.
20-AT-016H2020-05-07. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
20-BD-007H2020-04-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using certain safe chemical products.
19-GI-006H2019-11-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides instruction detailing the proper methodology for scanning and uploading captured GDS data files to the Techline Repository. Compliance with this bulletin ensures that the GDS data files are correctly transferred and matched with a Techline Case number.
DOR-Y5Q6Z-012018-02-05. Service bulletin. POWER TRAIN; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. This SKU is an Air Conditioning Bypass Pulley. The Customer communication requested return of unsold inventory to inspect for potential bracket cracking. Bracket cracks may cause the engine drive belt to slip or jump off the pulley causing loss of power steering assist and electrical system charging.
DOR-Y5Q6Z-012018-02-05. Service bulletin. POWER TRAIN; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This SKU is an Air Conditioning Bypass Pulley. The Customer communication requested return of unsold inventory to inspect for potential bracket cracking. Bracket cracks may cause the engine drive belt to slip or jump off the pulley causing loss of power steering assist and electrical system charging.
DOR-T5K8Y-012018-02-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; POWER TRAIN. This SKU is an Air Conditioning Bypass Pulley. The Customer communication requested return of unsold inventory to inspect for potential bracket cracking. Bracket cracks may cause the engine drive belt to slip or jump off the pulley causing loss of power steering assist and electrical system charging.
08042005-04-30. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. FD46XG POLY ALKYLEN GLYCOL (PAG) OIL SPECIFICATIONS FOR AIR CONDITIONING COMPONENT REPLACEMENT. *NM
04970022004-10-25. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. FD46XG PAG OIL SPECIFICATIONS FOR AIR CONDITIONING COMPONENT REPLACEMENT. *TT
03010082003-10-22. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. AIR CONDITIONING RECEIVER DRIER REPLACEMENT. ALSO INCLUDING THE 2004 XG350. *TT
T102003-10-22. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. AIR CONDITIONING RECEIVER DRIER REPLACEMENT (SERVICE CAMPAIGN T10). VARIOUS MODELS INCLUDING 2004 XG350. *TT
0620032003-08-14. Service bulletin. EQUIPMENT:OTHER:LABELS. DETAILED INFORMATION TO HYUNDAI DEALERSHIP SERVICE MANAGERS ON CAMPAIGN 059 - TEMPORARY SPARE TIRE AND TIRE INFLATION PRESSURE LABEL REPLACEMENT. *TT
02900122003-03-25. Service bulletin. EQUIPMENT:ELECTRICAL. REVISED SCHEMATIC FOR CIGARETTE LIGHTER AND POWER OUTLET. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.