2021 Hyundai Elantra
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 2021 Elantra 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.
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TSB #218/231 amend
Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing. Read More »
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TSB #21-BR-002H
This bulletin provides best practice recommendations when performing brake service procedures. Read More »
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TSB #20-BR-002H
This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area. Read More »
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TSB #24-FL-003H
This bulletin contains the software update procedure for the Engine Control Unit (ECU) on certain 2021-2023MY Elantra (CN7) and 2022-2023MY Kona (OS) vehicles equipped with the 1. Read More »
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TSB #23-EM-005H
This bulletin provides important checkpoint guidelines when performing engine oil and filter change services. Read More »
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TSB #23-EE-010H
This bulletin is issued to provide the extended battery diagnosis procedure using GDS-M. This battery diagnosis function displays the various battery-related faults such as: a?? Internal short circuit a?? Battery deterioration a?? ... Read More »
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TSB #22-EM-010H
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 »
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TSB #22-01-032H
On certain 2021 Elantra and 2022 Kona vehicles equipped with 2.0L engine, a coolant leak at the Water Temperature Sensor (WTS) may be observed due to machining burrs at the mounting port of the cylinder head, resulting in improper ... Read More »
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TSB #21-01-048H
On certain 2021-2022 Elantra vehicles, a coolant leak at the Water Temperature Sensor (WTS) may be observed due to machining burrs at the mounting port of the cylinder head, resulting in improper coolant sealing. Read More »
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TSB #21-01-043H
This bulletin provides information related to the Engine Control Module (ECM) software update for 2021MY Elantra (CN7/CN7A) vehicles equipped with the 2. Read More »
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TSB #21-EM-004H
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 »
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TSB #21-EM-003H
This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below. Read More »
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TSB #21-01-017H
This bulletin provides the service procedure to update the Transmission Control Unit (TCU) software for certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT). Read More »
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TSB #23-AT-010H
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-01-006H
Certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT) need an update to the damper clutch logic to address a potential engine stall condition immediately following Forward Collision ... Read More »
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TSB #23-01-006H
This bulletin provides the service procedure to update the Transmission Control Unit (TCU) software for certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT). Read More »
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TSB #22-01-076H
Some 2021 ~ 2022MY Elantra (CN7, CN7a, CN7 HEV) vehicles may exhibit a condition with multiple warning lights displayed on the instrument cluster and various symptoms; multiple DTCs (Diagnostic Trouble Code), reduction in power steering ... Read More »
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TSB #22-01-007H
Certain vehicles equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal shifting caused by an out of specification input shaft snap ring. Read More »
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TSB #21-01-017H
This bulletin provides the service procedure to update the Transmission Control Unit (TCU) software for certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT). Read More »
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TSB #24-01-009H
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 »
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TSB #24-01-009H
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 »
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TSB #24-01-009H
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 »
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TSB #23-01-014H-6
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 »
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TSB #24-BE-001H
Some vehicles equipped with the AVN 5th Gen Wide system may exhibit a condition where the radio app crashes frequently when entering radio mode and/or displays a message that reads a??Uneven Road Ahead, Drive carefullya?? on the cluster ... Read More »
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TSB #23-01-014H-6
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 »
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TSB #23-01-014H-6
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 »
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TSB #23-01-014H-6
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-EE-010H
This bulletin is issued to provide the extended battery diagnosis procedure using GDS-M. This battery diagnosis function displays the various battery-related faults such as: a?? Internal short circuit a?? Battery deterioration a?? ... Read More »
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TSB #23-BE-010H
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-BE-007H
This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundaia??s Navigation Updates page. Read More »
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TSB #23-01-014H-5
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-01-014H-4
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 »
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TSB #23-01-014H-4
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 »
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TSB #23-01-014H-4
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 »
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TSB #23-01-014H-3
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 »
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TSB #22-01-076H-1
Some 2021 ~ 2022MY Elantra (CN7, CN7a, CN7 HEV) vehicles may exhibit a condition with multiple warning lights displayed on the instrument cluster and various symptoms; multiple DTCs (Diagnostic Trouble Code), reduction in power steering ... Read More »
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TSB #21-01-056H
Some 2021 Elantra (CN7) vehicles may exhibit a condition with multiple warning lights displayed on the instrument cluster and various symptoms; multiple DTCs (Diagnostic Trouble Code), reduction in power steering assist, and not able to ... Read More »
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TSB #21-GI-005H
This bulletin provides information regarding the use of window mounted lockboxes without RFID shielding, which may cause battery drain on dealer stock vehicles. Read More »
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TSB #21-BE-002H
This bulletin describes the procedure to update the radio software to help reduce the disconnection occurrences. Read More »
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TSB #21-01-007H
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 »
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TSB #20-BE-014H
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 »
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TSB #20-GI-006H
This bulletin provides information on the Launch Quality Monitoring Process (LQMP) for the 2021MY Hyundai Elantra. After a new vehicle launch, Hyundai uses the LQMP to monitor all customer and dealer activities at a minimum of 100 days. Read More »
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TSB #24-01-009H
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 »
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TSB #23-01-014H-6
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-01-014H-6
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-01-014H-4
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 »
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TSB #23-01-014H-4
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-01-006H
Certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT) need an update to the damper clutch logic to address a potential engine stall condition immediately following Forward Collision ... Read More »
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TSB #23-01-006H
This bulletin provides the service procedure to update the Transmission Control Unit (TCU) software for certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT). Read More »
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TSB #21-BE-007H
Some 2021 Elantra (CN7a) rear combination lamp turn signal light bulbs may prematurely become inoperative. This bulletin describes the procedure to replace the rear combination lamp turn signal light bulbs for both the right and left side. Read More »
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TSB #24-BD-001H
This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. Read More »
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TSB #23-BD-002H
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 »
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TSB #24-BD-001H
This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. Read More »
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TSB #23-01-014H-3
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 »
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TSB #22-BD-001H
Certain 2021MY Elantra vehicles may exhibit paint delamination on the left, right and lower moldings of the front bumper. Follow the procedure outlined in this bulletin to remove and replace the dark chrome front bumper moldings. Read More »
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TSB #23-BD-007H
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 »
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TSB #22-GI-006H
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 »
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TSB #20-SS-004H
This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. Read More »
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TSB #20-SS-004H
This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. Read More »
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TSB #24-BE-005H
Certain 2021~2022MY Elantra (CN7/CN7A) vehicles may exhibit a warning light with DTC C1620, caused by a distorted signal due to internal contamination of the front radar reception antenna. Read More »
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TSB #22-BD-001H
Certain 2021MY Elantra vehicles may exhibit paint delamination on the left, right and lower moldings of the front bumper. Follow the procedure outlined in this bulletin to remove and replace the dark chrome front bumper moldings. Read More »
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TSB #22-01-007H
Certain vehicles equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal shifting caused by an out of specification input shaft snap ring. Read More »
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TSB #21-EM-004H
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 »
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TSB #21-BR-002H
This bulletin provides best practice recommendations when performing brake service procedures. Read More »
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TSB #21-EM-003H
This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below. Read More »
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TSB #24-01-009H
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 »
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TSB #24-01-009H
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 »
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TSB #23-01-014H-5
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 »
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TSB #23-BE-007H
This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundaia??s Navigation Updates page. Read More »
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TSB #23-01-006H
Certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT) need an update to the damper clutch logic to address a potential engine stall condition immediately following Forward Collision ... Read More »
-
TSB #21-BE-002H
This bulletin describes the procedure to update the radio software to help reduce the disconnection occurrences. Read More »
-
TSB #20-GI-006H
This bulletin provides information on the Launch Quality Monitoring Process (LQMP) for the 2021MY Hyundai Elantra. After a new vehicle launch, Hyundai uses the LQMP to monitor all customer and dealer activities at a minimum of 100 days. Read More »
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TSB #21-BR-002H
This bulletin provides best practice recommendations when performing brake service procedures. Read More »