2018 Hyundai Accent service bulletins & manufacturer communications

82 manufacturer communications are on file with NHTSA for the 2018 Hyundai Accent. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.

• The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province De…
  DTN DL · Technical service bulletin · Air Bags · issued Apr 10, 2026
• The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin …
  DTN DCS · Technical service bulletin · Air Bags · issued Apr 10, 2026
• In response to this trend, we engineered a software upgrade that addresses the social media theft method and made it available to owners of eligible models free of charge at author…
  P33 OL · Technical service bulletin · Electrical System · issued Dec 19, 2025
• Upon customer's request ONLY, the Technical Service Bulletin (TSB) 25-01-089H provides the service procedure for installation of a key cylinder reinforcement protector assembly and…
  25-01-089H DCS · Technical service bulletin · Electrical System · issued Dec 15, 2025
• In addition to the Anti-Theft software provided under Service Campaign 993 (TSB 24-01-009H-1), a zinc reinforced ignition cylinder protector hardware upgrade is being made availabl…
  25-01-089H DN · Technical service bulletin · Electrical System · issued Dec 15, 2025
• This bulletin provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti-theft decals on the front windows.
  25-01-089H TSB · Technical service bulletin · Electrical System · issued Dec 15, 2025
• 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 …
  25-BD-012H TSB · Technical service bulletin · Exterior Lighting · issued Nov 6, 2025
• Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s comm…
  25-01-024H-1 TSB · Service campaign · Electrical System · issued May 8, 2025
• Certain 2018 – 2019 model year Accent and certain 2016 – 2017 model year Tucson vehicles may display various Diagnostic Trouble Codes (DTC) related to the Airbag Control Unit (ACU)…
  TXXQ OL · Warranty extension · Air Bags · issued Nov 26, 2024
• Certain 2018-2020MY Accent (HC) and 2016-2018MY Tucson (TL) vehicles may experience inoperable Airbag Control Unit (ACU) and have Diagnostic Trouble Code (DTC) stored in the ECM. H…
  24-BE-014H DBP · Warranty extension · Air Bags · issued Oct 17, 2024
• Certain 2018-2019MY Accent (HC) and 2016-2017MY Tucson (TL) vehicles may experience inoperable Airbag Control Unit (ACU) and have Diagnostic Trouble Code (DTC) stored in the ECM. H…
  24-BE-014H TSB · Warranty extension · Air Bags · issued Oct 17, 2024
• A class settlement against Hyundai Motor America (“HMA”) that had alleged that certain 2011 – 2022 model year Hyundai vehicles that were not equipped with an engine immobilizer (ca…
  24-01-009H-1 · Service campaign · Electrical System · issued May 10, 2024
• A class settlement against Hyundai Motor America (“HMA”) that had alleged that certain 2011 – 2022 model year Hyundai vehicles that were not equipped with an engine immobilizer (ca…
  24-01-009H-1 · Service campaign · Electrical System · issued May 9, 2024
• 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…
  24-BD-001H · Technical service bulletin · Visibility/wiper · issued Feb 14, 2024
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-thef…
  24-01-009H · Technical service bulletin · Electrical System · issued Feb 12, 2024
• This bulletin provides the service procedure to: 1) Upgrade the IBU/BCM (Integrated Body Control Unit/Body Control Module) to revise the OEM Hyundai burglar alarm system operation …
  24-01-009H · Technical service bulletin · Equipment · issued Feb 1, 2024
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-thef…
  24-01-009H · Technical service bulletin · Equipment · issued Feb 1, 2024
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-thef…
  23-01-014H-6 · Technical service bulletin · Electrical System · issued Jan 22, 2024
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-thef…
  23-01-014H-6 · Technical service bulletin · Electrical System · issued Dec 19, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-6 · Technical service bulletin · Electrical System · issued Nov 10, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response t…
  23-01-014H-6 · Technical service bulletin · Electrical System · issued Nov 10, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response t…
  23-01-014H-5 · Technical service bulletin · Electrical System · issued Oct 26, 2023
• This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
  23-EM-005H · Technical service bulletin · Engine and Engine Cooling · issued Oct 13, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response t…
  23-01-014H-5 · Technical service bulletin · Power Train · issued Aug 17, 2023
• Some models from service campaign 993 (IBU/BCM Software Update and Decals Application) equipped with the Hyundai OEM remote start system may exhibit the horn honking when remote st…
  23-BE-010H · Technical service bulletin · Electrical System · issued Aug 17, 2023
• Certain 2018-2019MY Accent (HC) vehicles may experience an inoperable horn that may be caused by internal contact alignment and corrosion. Hyundai is extending the warranty coverag…
  23-BE-008H · Technical service bulletin · Electrical System · issued Jul 20, 2023
• Certain 2018~19MY Accent (HC) vehicles may experience an inoperable horn that may be caused by internal contact alignment and corrosion. Hyundai is extending the warranty coverage …
  23-BE-008H · Technical service bulletin · Electrical System · issued Jul 20, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response t…
  23-01-014H-5 · Technical service bulletin · Electrical System · issued Jul 10, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-5 · Technical service bulletin · Electrical System · issued Jul 10, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-5 · Technical service bulletin · Electrical System · issued Jun 8, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-4 · Technical service bulletin · Electrical System · issued May 12, 2023
• 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…
  23-BD-007H · Technical service bulletin · Structure · issued Apr 24, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-4 · Technical service bulletin · Electrical System · issued Apr 13, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993) in response to an increase in thefts of certain Hyundai vehicles not equipped with engi…
  23-01-014H-4 · Technical service bulletin · Electrical System · issued Apr 13, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-3 · Technical service bulletin · Visibility · issued Apr 6, 2023
• 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 …
  23-BD-002H · Technical service bulletin · Visibility · issued Jan 30, 2023
• 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…
  22-EM-010H · Technical service bulletin · Engine and Engine Cooling · issued Jul 28, 2022
• 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 w…
  22-GI-006H · Technical service bulletin · Tires · issued Jul 14, 2022
• If a vehicle arrives at the dealership with the symptoms below, follow the procedures outlined in this bulletin to ensure that the shipping fuse is completely seated in the junctio…
  21-BE-014H · Technical service bulletin · Electrical System · issued Oct 18, 2021
• The trunk latch base can be ordered separately from the trunk latch assembly. This bulletin describes the procedure to replace the trunk latch base.
  21-BD-005H · Technical service bulletin · Latches/locks/linkages · issued May 10, 2021
• 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 T…
  21-EM-004H · Technical service bulletin · Equipment · issued Mar 30, 2021
• This bulletin provides best practice recommendations when performing brake service procedures.
  21-BR-002H · Technical service bulletin · Equipment · issued Mar 23, 2021
• This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
  21-EM-003H · Technical service bulletin · Engine and Engine Cooling · issued Mar 10, 2021
• This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area.
  20-BR-002H · Technical service bulletin · Service Brakes · issued Nov 30, 2020
• This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the â Tire Balance Data Sheetâ…
  20-SS-004H · Technical service bulletin · Wheels · issued Nov 19, 2020
• The trunk latch base can be ordered separately from the trunk latch assembly. This bulletin describes the procedure to replace the trunk latch base.
  20-BD-010H-2 · Technical service bulletin · Latches/locks/linkages · issued Nov 18, 2020
• This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
  20-ST-001H-2 · Technical service bulletin · Steering · issued Sep 9, 2020
• This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
  20-ST-001H-1 · Technical service bulletin · Steering · issued Aug 10, 2020
• 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 …
  20-BD-014H · Technical service bulletin · Equipment · issued Jul 14, 2020
• The trunk latch base can be ordered separately from the trunk latch assembly. This bulletin describes the procedure to replace the trunk latch base.
  20-BD-010H-1 · Technical service bulletin · Latches/locks/linkages · issued May 28, 2020
• If you are servicing an applicable vehicle with the following symptoms and DTC, follow the Service Procedure on Page 3. ï · Check Engine light on ï · DTC P0880/P088000 - TCM Power …
  20-AT-018H · Technical service bulletin · Power Train · issued May 21, 2020
• This bulletin provides information on tire maintenance best practices and procedures for dealers and customers to maximize tire life and performance.
  20-SS-002H(1) · Technical service bulletin · Tires · issued May 6, 2020
• This bulletin describes the general guidelines to help disinfect and protect vehicle exterior/interior surfaces using recommended safe chemical products.
  20-BD-007H-1 · Technical service bulletin · Equipment · issued May 1, 2020
• This bulletin provides information on identifying dealer stock vehicles with either: â ¢ A Battery SOC alert - low Battery State of Charge (SOC) at or below 50%. â ¢ A 30 Day alert…
  20-EE-003H · Technical service bulletin · Equipment · issued Apr 23, 2020
• The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
  20-AT-016H · Technical service bulletin · Power Train · issued Apr 17, 2020
• If you are servicing an applicable vehicle with a â Check Engineâ light on and one or more of the DTC listed below, follow the repair procedure and replace the oil pressure harness…
  20-AT-015H · Technical service bulletin · Equipment · issued Apr 9, 2020
• If you are servicing an applicable vehicle with a (Check Engine Light on) and one or more of the DTC listed below, follow the repair procedure and replace the input/output speed se…
  20-AT-012H · Technical service bulletin · Service Brakes, Air · issued Mar 25, 2020
• This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using certain safe chemical products.
  20-BD-007H · Technical service bulletin · Equipment Adaptive/mobility · issued Mar 23, 2020
• This bulletin describes the mandatory procedure to submit battery test data electronically for battery warranty claims by running the GDS Battery Claim App. The App must be run rig…
  20-EE-002H(1) · Technical service bulletin · Electrical System · issued Mar 18, 2020
• If you are servicing an applicable vehicle with a â Check Engineâ light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and…
  20-AT-007H · Technical service bulletin · Equipment · issued Feb 20, 2020
• 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 …
  20-SS-001H · Technical service bulletin · Suspension · issued Feb 5, 2020
• 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 …
  20-BE-001H · Technical service bulletin · Electrical System · issued Jan 16, 2020
• This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
  20-ST-001H · Technical service bulletin · Steering · issued Jan 3, 2020
• This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).
  20-AT-001H · Technical service bulletin · Power Train · issued Jan 2, 2020
• If you are servicing a vehicle with a transmission slipping concern, follow the Service Procedure shown below and perform a stall test. This TSB provides a procedure to test each c…
  19-AT-021H-1 · Technical service bulletin · Power Train · issued Dec 17, 2019
• If you are servicing a vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. ? Diagnostic trouble codes: ?P0705 - Range switch se…
  19-AT-024H · Technical service bulletin · Electrical System · issued Nov 15, 2019
• 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 rada…
  19-BE-011H-1 · Technical service bulletin · Back Over Prevention · issued Nov 4, 2019
• This bulletin provides instruction detailing the proper methodology for scanning and uploading captured GDS data files to the Techline Repository. Compliance with this bulletin ens…
  19-GI-006H · Technical service bulletin · Equipment Adaptive/mobility · issued Oct 14, 2019
• If you are servicing an applicable vehicle with a ?Check Engine? light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and …
  19-AT-016H · Technical service bulletin · Equipment Adaptive/mobility · issued Aug 12, 2019
• This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).
  19-AT-012H · Technical service bulletin · Power Train · issued Jun 4, 2019
• This bulletin provides a procedure to transfer pressure data to the ECU/TCU using GDS Mobile. This procedure is necessary to reduce the TCU learning time and improve the shift qual…
  19-AT-010H · Technical service bulletin · Power Train · issued May 8, 2019
• This bulletin provides the procedure to write the Vehicle Identification Number (VIN) during the replacement of the Engine Control Module (ECM) or Powertrain Control Module (PCM). …
  19-FL-003H · Technical service bulletin · Power Train · issued Apr 15, 2019
• If you are servicing an applicable vehicle with a ?Check Engine Light on? and one or more of the DTC listed below, follow the repair procedure and replace the input/output speed se…
  5NP-P4Y7D-08 · Technical service bulletin · Engine · issued Jul 18, 2018
• If you are servicing an applicable vehicle with a Check Engine light on and one or more of the DTC listed below, follow the repair procedure and replace the oil pressure harness.
  5NP-C5F9C-08 · Technical service bulletin · Engine and Engine Cooling · issued Jul 18, 2018
• If you are servicing an applicable vehicle with a complaint of ?Check Engine Light on? and one or more of the DTC listed below, follow the repair procedure and replace the related …
  5NP-M5G2M-08 · Technical service bulletin · Engine and Engine Cooling · issued Jul 10, 2018
• Hyundai Motor America is adding additional VINs to Service Campaign T2X. Service Campaign T2X provides a service procedure to replace spark plugs on certain 2018 Accent vehicles.
  5NP-P9V2Z-06 · Technical service bulletin · Electrical System · issued May 23, 2018
• This bulletin provides the procedure to inspect the current spark plugs, replace all 4 spark plugs, check new spark plug gap, and clear Diagnostic Trouble Codes (DTC). This bulleti…
  5NP-B4B6V-06 · Technical service bulletin · Electrical System · issued May 22, 2018
• The shift lever on some 6-speed vehicles may intermittently not shift out of Park. This bulletin provides the diagnostic procedures to correct this condition.
  5NP-F6W6P-05 · Technical service bulletin · Power Train · issued Apr 30, 2018
• This bulletin provides the procedure to inspect the current spark plugs, replace all 4 spark plugs, check new spark plug gap, and clear Diagnostic Trouble Codes (DTC). This bulleti…
  5NP-W7U4F-05 · Technical service bulletin · Engine and Engine Cooling · issued Apr 25, 2018
• Hyundai Motor America is conducting a Service Campaign to replace the spark plugs on certain 2018 Accent vehicles. Service Campaign T2X provides a service procedure to replace the …
  5NP-G7V2G-05 · Technical service bulletin · Engine and Engine Cooling · issued Apr 25, 2018
• If you are servicing a vehicle with a harsh and/or delayed shift, use the GDS as shown in the Service Procedure to measure shift engagement time.
  5NP-P5L7D-05 · Technical service bulletin · Power Train · issued Apr 6, 2018
• If a vehicle exhibits a harsh and/or delayed shift, follow the Service Procedure below to measure the shift engagement time.
  5NP-G7W3S-05 · Technical service bulletin · Power Train · issued Apr 2, 2018