Technical Service Bulletins (TSBs) for the 2021 Accent are official communications between Hyundai & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    STEERING

    • TSB #21-01-005H

      Date Announced:
      JAN 21, 2021
      NHTSA ID:
      #10186821

      This bulletin describes the procedure to update the MDPS (Motor Driven Power Steering) ECU for loss of steering assist when the engine is started. Read More »

    BRAKES (PWS)

    • TSB #21-BR-002H

      Date Announced:
      MAR 23, 2021
      NHTSA ID:
      #10190038

      This bulletin provides best practice recommendations when performing brake service procedures. Read More »

    • TSB #20-BR-002H

      Date Announced:
      NOV 30, 2020
      NHTSA ID:
      #10183963

      This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area. Read More »

    ENGINE AND ENGINE COOLING

    • TSB #23-EM-005H

      Date Announced:
      OCT 13, 2023
      NHTSA ID:
      #10247189

      This bulletin provides important checkpoint guidelines when performing engine oil and filter change services. Read More »

    • TSB #22-01-082H

      Date Announced:
      OCT 19, 2022
      NHTSA ID:
      #10225468

      This bulletin provides information related to the ECU software upgrade for improvement of ECU Mileage calculation internal error (OBD Compliance). Read More »

    • TSB #22-EM-010H

      Date Announced:
      JUL 28, 2022
      NHTSA ID:
      #10217251

      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. Read More »

    • TSB #21-EM-004H

      Date Announced:
      MAR 30, 2021
      NHTSA ID:
      #10190044

      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 ... Read More »

    • TSB #21-EM-003H

      Date Announced:
      MAR 10, 2021
      NHTSA ID:
      #10189989

      This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below. Read More »

    POWER TRAIN

    • TSB #23-AT-010H

      Date Announced:
      AUG 23, 2023
      NHTSA ID:
      #10241878

      Certain vehicles equipped with the Intelligent Variable Transmission (IVT) may experience a check engine light or malfunction indicator light due to Diagnostic Trouble Codes (DTC) listed below. Read More »

    • TSB #23-01-014H-5

      Date Announced:
      AUG 17, 2023
      NHTSA ID:
      #10241874

      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 to an increase in thefts of certain 2011-2022MY Hyundai ... Read More »

    • TSB #21-01-038H-1

      Date Announced:
      SEP 29, 2021
      NHTSA ID:
      #10202181

      Certain 20-21MY Accent (HC) vehicles may experience an illuminated warning light due to Diagnostic Trouble Codes (DTC) listed below. Read More »

    • TSB #21-01-038H

      Date Announced:
      MAY 20, 2021
      NHTSA ID:
      #10196456

      Certain 20-21MY Accent (HC) vehicles may experience an illuminated warning light due to Diagnostic Trouble Codes (DTC) listed below. Read More »

    ELECTRICAL SYSTEM

    • TSB #24-01-018H

      Date Announced:
      FEB 23, 2024
      NHTSA ID:
      #10251290

      Certain Accent (HC) vehicles may experience an illuminated warning light due to Diagnostic Trouble Codes (DTC) listed below. Read More »

    • TSB #24-01-018H

      Date Announced:
      FEB 23, 2024
      NHTSA ID:
      #10251291

      Certain 2020-2021MY Accent (HC) vehicles may experience an illuminated warning light due to the following Diagnostic Trouble Codes (DTC) listed below: a?? TCU DTC Codes: P0730, P0731, P0741, P0867, P1603 Follow the procedure in TSB ... Read More »

    • TSB #24-01-014H

      Date Announced:
      FEB 21, 2024
      NHTSA ID:
      #10251288

      Certain 2020-2021MY Accent (HC) vehicles may experience an illuminated warning light due to the following Diagnostic Trouble Codes (DTC) listed below: a?? TCU DTC Codes: P0730, P0731, P0741, P0867, P1603 Follow the procedure in TSB ... Read More »

    • TSB #24-01-009H

      Date Announced:
      FEB 12, 2024
      NHTSA ID:
      #10251282

      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-theft ignition cylinder protector campaign (Campaign 9A5) in ... Read More »

    • TSB #24-01-009H

      Date Announced:
      FEB 01, 2024
      NHTSA ID:
      #10251275

      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-theft ignition cylinder protector campaign (Campaign 9A5) in ... Read More »

    • TSB #24-01-009H

      Date Announced:
      FEB 01, 2024
      NHTSA ID:
      #10251276

      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 and ignition start logic and 2) Install two anti-theft ... Read More »

    • TSB #23-01-014H-6

      Date Announced:
      JAN 22, 2024
      NHTSA ID:
      #10249707

      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-theft ignition cylinder protector campaign (Campaign 9A5) in ... Read More »

    • TSB #23-01-014H-6

      Date Announced:
      DEC 19, 2023
      NHTSA ID:
      #10247611

      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-theft ignition cylinder protector campaign (Campaign 9A5) in ... Read More »

    • TSB #23-01-014H-6

      Date Announced:
      NOV 10, 2023
      NHTSA ID:
      #10245579

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    • TSB #23-01-014H-6

      Date Announced:
      NOV 10, 2023
      NHTSA ID:
      #10245578

      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 to an increase in thefts of certain 2011-2022MY Hyundai ... Read More »

    • TSB #23-01-014H-5

      Date Announced:
      OCT 26, 2023
      NHTSA ID:
      #10244992

      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 to an increase in thefts of certain 2011-2022MY Hyundai ... Read More »

    • TSB #23-BE-010H

      Date Announced:
      AUG 17, 2023
      NHTSA ID:
      #10241849

      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 starting the vehicle after receiving the software update. Read More »

    • TSB #23-01-014H-5

      Date Announced:
      AUG 17, 2023
      NHTSA ID:
      #10241874

      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 to an increase in thefts of certain 2011-2022MY Hyundai ... Read More »

    • TSB #23-01-014H-5

      Date Announced:
      JUL 10, 2023
      NHTSA ID:
      #10240080

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    • TSB #23-01-014H-5

      Date Announced:
      JUL 10, 2023
      NHTSA ID:
      #10240081

      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 to an increase in thefts of certain 2011-2022MY Hyundai ... Read More »

    • TSB #23-01-014H-5

      Date Announced:
      JUN 08, 2023
      NHTSA ID:
      #10238353

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    • TSB #23-01-014H-4

      Date Announced:
      MAY 12, 2023
      NHTSA ID:
      #10237189

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    • TSB #23-01-014H-4

      Date Announced:
      APR 13, 2023
      NHTSA ID:
      #10235555

      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 engine immobilizers targeted through social media. Read More »

    • TSB #23-01-014H-4

      Date Announced:
      APR 13, 2023
      NHTSA ID:
      #10235556

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    • TSB #23-01-014H-3

      Date Announced:
      APR 06, 2023
      NHTSA ID:
      #10235341

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    • TSB #21-BE-014H

      Date Announced:
      OCT 18, 2021
      NHTSA ID:
      #10203275

      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 junction box. Read More »

    • TSB #20-BE-014H

      Date Announced:
      DEC 21, 2020
      NHTSA ID:
      #10185443

      When using Wireless CarPlay, the system may intermittently auto disconnect. When Wireless CarPlay is disconnected, a pop up message a??Phone Not Responding. Please reconnect it and try againa?? will appear on the radio screen. Read More »

    ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

    • TSB #24-01-009H

      Date Announced:
      FEB 12, 2024
      NHTSA ID:
      #10251282

      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-theft ignition cylinder protector campaign (Campaign 9A5) in ... Read More »

    • TSB #23-01-014H-6

      Date Announced:
      NOV 10, 2023
      NHTSA ID:
      #10245578

      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 to an increase in thefts of certain 2011-2022MY Hyundai ... Read More »

    • TSB #23-01-014H-5

      Date Announced:
      OCT 26, 2023
      NHTSA ID:
      #10244992

      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 to an increase in thefts of certain 2011-2022MY Hyundai ... Read More »

    • TSB #23-01-014H-5

      Date Announced:
      JUN 08, 2023
      NHTSA ID:
      #10238353

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:SENSOR

    • TSB #23-01-014H-6

      Date Announced:
      NOV 10, 2023
      NHTSA ID:
      #10245579

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    • TSB #23-01-014H-5

      Date Announced:
      JUL 10, 2023
      NHTSA ID:
      #10240080

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    • TSB #23-01-014H-4

      Date Announced:
      APR 13, 2023
      NHTSA ID:
      #10235555

      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 engine immobilizers targeted through social media. Read More »

    • TSB #23-01-014H-4

      Date Announced:
      APR 13, 2023
      NHTSA ID:
      #10235556

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER

    • TSB #23-01-014H-5

      Date Announced:
      JUL 10, 2023
      NHTSA ID:
      #10240080

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    VISIBILITY

    • TSB #24-BD-001H

      Date Announced:
      FEB 14, 2024
      NHTSA ID:
      #10251285

      This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. Read More »

    • TSB #23-BD-002H

      Date Announced:
      JAN 30, 2023
      NHTSA ID:
      #10230904

      This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. Read More »

    VISIBILITY/WIPER (PWS)

    • TSB #24-BD-001H

      Date Announced:
      FEB 14, 2024
      NHTSA ID:
      #10251285

      This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. Read More »

    VISIBILITY:POWER WINDOW DEVICES AND CONTROLS

    • TSB #23-01-014H-3

      Date Announced:
      APR 06, 2023
      NHTSA ID:
      #10235341

      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 Module), to revise the OEM Hyundai burglar alarm system ... Read More »

    STRUCTURE:BODY

    • TSB #23-BD-007H

      Date Announced:
      APR 24, 2023
      NHTSA ID:
      #10235566

      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. Read More »

    LATCHES/LOCKS/LINKAGES

    • TSB #21-BD-005H

      Date Announced:
      MAY 10, 2021
      NHTSA ID:
      #10196571

      The trunk latch base can be ordered separately from the trunk latch assembly. This bulletin describes the procedure to replace the trunk latch base. Read More »

    TIRES

    • TSB #22-GI-006H

      Date Announced:
      JUL 14, 2022
      NHTSA ID:
      #10217258

      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 ... Read More »

    • TSB #20-SS-004H

      Date Announced:
      NOV 19, 2020
      NHTSA ID:
      #10183960

      This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. Read More »

    WHEELS

    • TSB #20-SS-004H

      Date Announced:
      NOV 19, 2020
      NHTSA ID:
      #10183960

      This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. Read More »

    EQUIPMENT

    • TSB #21-EM-004H

      Date Announced:
      MAR 30, 2021
      NHTSA ID:
      #10190044

      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 ... Read More »

    • TSB #21-BR-002H

      Date Announced:
      MAR 23, 2021
      NHTSA ID:
      #10190038

      This bulletin provides best practice recommendations when performing brake service procedures. Read More »

    • TSB #21-EM-003H

      Date Announced:
      MAR 10, 2021
      NHTSA ID:
      #10189989

      This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below. Read More »

    EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES

    • TSB #24-01-009H

      Date Announced:
      FEB 01, 2024
      NHTSA ID:
      #10251275

      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-theft ignition cylinder protector campaign (Campaign 9A5) in ... Read More »

    • TSB #24-01-009H

      Date Announced:
      FEB 01, 2024
      NHTSA ID:
      #10251276

      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 and ignition start logic and 2) Install two anti-theft ... Read More »

    • TSB #23-01-014H-5

      Date Announced:
      JUL 10, 2023
      NHTSA ID:
      #10240081

      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 to an increase in thefts of certain 2011-2022MY Hyundai ... Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #21-BR-002H

      Date Announced:
      MAR 23, 2021
      NHTSA ID:
      #10190038

      This bulletin provides best practice recommendations when performing brake service procedures. Read More »