2003 Hyundai Sonata Technical Service Bulletins

47 technical service bulletins (TSBs) are on record for the 2003 Hyundai Sonata. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11038458Oct 8, 2026Engine. Some vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin outlines the combustion chamber cleaning procedure for vehicles diagnosed with this condition.
• 11038456Oct 7, 2026Engine. Certain vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin provides the inspection and repair procedures for vehicles exhibiting this condition. All internal combustion engines consume engine oil as part of normal engine operation. Oil consumption rates may vary based on mileage, operating conditions, driving habits, and maintenance history.
• 11032523Apr 10, 2026Air bags. The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag…
• 11032522Apr 10, 2026Air bags. The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during…
• 11025476Nov 6, 2025Exterior lighting. This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This 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…
• 10251285Feb 14, 2024Visibility (wipers, defrost, mirrors). This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass.
• 10247189Oct 13, 2023Engine cooling. This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
• 10235566Apr 24, 2023Body and structure. Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can become clouded under the PPF. These spots are the result of moisture trapped between the PPF and the paint.
• 10230904Jan 30, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This 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…
• 10217251Jul 28, 2022Engine cooling. Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.
• 10217258Jul 14, 2022Tires. Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for correcting load carrying capacity information indicated on tire placards when vehicle weight has been increased before retail sale. This limit is the lesser of 1.5% of GVWR or 100 pounds. If the total added weight exceeds the lesser of the limit, a label must be added to the driver-side B-pillar within 25mm (1…
• 10196546May 21, 2021Transmission and drivetrain. Hyundai approves only the ATF, DCT gear oil and IVT gear oil specified in the vehicle’s owner’s manual.  Use of other ATF may result in improper shift quality or other drivability conditions.  Use of other DCT and IVT gear oil may result in reduced durability. Hyundai does not approve the use of any aftermarket ATF or gear oil additives.
• 10190044Mar 30, 2021Equipment, 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.
• 10190038Mar 23, 2021Brakes, Equipment. This bulletin provides best practice recommendations when performing brake service procedures.
• 10189989Mar 10, 2021Equipment, Engine cooling. This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
• 10183963Nov 30, 2020Brakes. This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area.
• 10183960Nov 19, 2020Wheels, Tires. This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the “Tire Balance Data Sheet” must be fully completed including imbalance and Road Force Variation (RFV) data. The Data Sheet can be found at the end of this bulletin.
• 10178175Jul 14, 2020Equipment, 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…
• 10176182May 6, 2020Tires, Wheels. This bulletin provides information on tire maintenance best practices and procedures for dealers and customers to maximize tire life and performance.
• 10176178May 1, 2020Equipment. This bulletin describes the general guidelines to help disinfect and protect vehicle exterior/interior surfaces using recommended safe chemical products.
• 10174808Apr 23, 2020Equipment, Electrical system. 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.
• 10174807Apr 17, 2020Transmission and drivetrain, Equipment. The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
• 10173546Mar 23, 2020Equipment. This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using certain safe chemical products.
• 10172142Feb 5, 2020Suspension. This bulletin describes the requirements for all wheel alignment and/or vehicle tracking claims and best practices when diagnosing and conducting alignment-related repairs for all models and model years.
• 10170883Jan 16, 2020Electrical system. This bulletin provides guidelines to inspect the USB, head unit, and multi-box for common connection conditions. 2. This bulletin presents guidelines to inspect for common Android Auto and Apple CarPlay connection conditions. 3. This bulletin provides physical differences between the USB 2.0 port and USB 3.0 port.
• 10169370Nov 4, 2019Lane departure, Back-over prevention (rear camera). The Blind Spot Detection (BSD) or Blind-Spot Collision Warning (BCW) is a system that measures the speed of and distance from the following vehicles by using two magnetic wave radar sensors attached in the rear bumper. The BSD/BCW detects vehicles within the blind spot zone and gives off an alarm (visual and audible). The two magnetic radar sensors provide these functions for BSD/BCW: ? Senses other vehicles in the…
• 10167253Oct 14, 2019Equipment. 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.
• 10128154Dec 1, 2017Transmission and drivetrain, Equipment, 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.
• 10128153Dec 1, 2017Electrical system, Transmission and drivetrain. 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.
• 10128119Dec 1, 2017Equipment, Transmission and drivetrain. 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.
• 10128118Dec 1, 2017Equipment, Transmission and drivetrain. 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.
• 10082725Sep 2, 2016Transmission and drivetrain. This bulletin provides information on components, attributes, and precautions of the 7-speed dry-type dual clutch transmission (dct).
• 10082455Aug 9, 2016Transmission and drivetrain. "the pcm or tcm contains logic to adjust solenoid duty and line pressure as needed to compensate for normal clutch wear over the life of the transaxle. This bulletin provides the procedures necessary to reset (erase) and relearn the pcm/tcm adaptive values. After the following repairs have been completed, the pcm/tcm adaptive values must be reset in order to provide optimum shift quality. If the procedure is not…
• 10040957May 1, 2011Brakes. Hyundai: all sonata hybrids. Brake bleeding procedure.
• 10032908Oct 1, 2009Transmission and drivetrain, Engine cooling. Hyundai: ata solenoid diagnostic trouble codes p0740, p0741, p0742, p0743, p0746, p0748, p0750, p0755, p0760, p0765, p0770. Incorrect operation of the transaxle solenoids may result in the following symptoms-check engine light illuminated; transaxle held in 3rd gear fail safe.
• 10030984Jul 1, 2009Transmission and drivetrain, Engine cooling. Hyundai: automatic transaxle range switch diagnostic trouble codes p0705 (range switch signal problems), p0707 (range switch open circuit), and p0708 (range switch short circuit or multiple inputs). An improperly adjusted or improperly operating range switch may result in the above mentioned conditions. Malfunction indicator light (mil) illuminated; impossible engine start in p or n.
• 10020912Dec 1, 2006Transmission and drivetrain. Automatic transaxle diagnostic trouble codes (dtc) list.
• 10020878Dec 1, 2006Engine cooling. Exhaust gas recirculation (egr) system diagnosis.
• 10019637Mar 1, 2006Brakes. Abs pump self-check noise.
• 10015866Dec 1, 2005Transmission and drivetrain. Automatic transaxle diagnostic trouble codes list.
• 10018734Nov 1, 2005Transmission and drivetrain. Reprograms are available for automatic transaxle driveability issues. Technet times. Hyundai.
• 10018184Aug 1, 2005Electrical system. Automatic transaxle diagnostic trouble codes list.
• 10016160Jul 1, 2005Engine cooling. 2003-2004 sonata 2.4l/2.7l tcm reprogramming instructions for driveline bump between 2-10 mph.
• 10015864Jun 1, 2005Brakes. Abs pump self check noise. Also included: 2003-2005 model xg and 1999, 2000, 2001, 2003, 2004 and 2005 model santa fe.
• 10011795Dec 1, 2004Transmission and drivetrain. 2-3 shift flare improvement tcm reprogramming instructions.
• 10011111Aug 4, 2004Engine cooling. Drivability conditions.
• 10014323Aug 1, 2004Equipment. Fd46xg poly alkylen glycol (pag) oil specifications for air conditioning component replacement.

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