Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
DTN DCS
Other
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 deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.
DTN DL
Other
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 replacement using non-genuine parts. These dangerous inflators have ruptured during deployment, posing a serious risk of injury or death due to metal fragments entering the vehicle cabin. To date, Hyundai is aware of three people who have died while driving a Hyundai vehicle with one of these substandard replacement airbag inflators that deployed in what likely would have been a survivable crash. NHTSA has issued a public advisory urging vehicle owners and service professionals to have vehicles inspected if there is reason to believe that a non-genuine replacement airbag may have been installed. Vehicles with salvage or rebuilt titles, prior airbag deployments, or unknown repair histories may present a higher risk. NHTSA strongly cautions against self-inspection by vehicle owners and recommends inspection by trained technicians.
26-01-033H DN
Warranty Program/Extension
This TSB references the Op codes to use for claim submission and the Parts required based on the vehicle’s inspection results from TSB 22-01-023H (DTC P1326 – Engine Bearing Inspection/Engine Replacement) or the latest version.
26-01-033H TSB
Warranty Program/Extension
This TSB references the Op codes to use for claim submission and the Parts required based on the vehicle’s inspection results from TSB 22-01-023H-2 (DTC P1326 – Engine Bearing Inspection/Engine Replacement) or the latest version.
25-BD-012H TSB
Service Bulletin/Repair Instructions
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 during normal driving operation.
25-01-024H-1 TSB
Service Campaign
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 communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.
24-01-050H-1
Service Campaign
This bulletin provides instructions to update the 4th generation AVN head unit software to ensure the SIM Over The Air function for the Bluelink service is operating properly.
24-01-050H
Service Bulletin/Repair Instructions
This bulletin provides instructions to update the 4th generation AVN head unit software to ensure the SIM Over The Air function for the Bluelink service is operating properly.
24-BD-001H
Service Bulletin/Repair Instructions
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. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades.
23-EM-005H
Service Bulletin/Repair Instructions
This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
23-BD-007H
Service Bulletin/Repair Instructions
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.
23-ST-003H
Service Bulletin/Repair Instructions
The warranty coverage for certain 2015-2017MY Sonata (LFa) and Sonata Hybrid/Plug-in (LF HEV/PHEV) vehicles exhibiting reduced power steering assist and/or motor driven power steering (MDPS) warning lamp has been extended to 15 years or 150,000 miles from the date of original retail delivery or date of first use, whichever occurs first. Refer to the TSB 23-ST-003H (or latest version) for warranty, service parts information, and diagnostic information outlined in the bulletin.
23-BD-002H
Service Bulletin/Repair Instructions
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 during normal driving operation.
22-01-023H-2
Service Bulletin/Repair Instructions
Certain vehicles may experience the Check Engine warning lamp illuminated with DTC P1326 and/or engine may exhibit abnormal noise, or no crank/no start condition related to connecting rod bearing wear or damage. This Dealer Best Practice outlines the service process to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results, as well as related warranty coverage for the conditions outlined above.
22-01-024H-2
Service Bulletin/Repair Instructions
OP CODE/PART NUMBER (REFERENCE GUIDE FOR SERVICE CAMPAIGN T6G)
22-EM-006H-2
Service Bulletin/Repair Instructions
The warranty coverage for engine repair or replacement regarding engine damage or malfunction from connecting rod bearing wear has been extended to 15 years or 150,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners. Commercial entities and individuals engaged in the buying, selling, leasing, or renting of motor vehicles, as well as salvaged vehicles, are ineligible for the extended warranty.
22-EM-010H
Service Bulletin/Repair Instructions
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.
22-GI-006H
Service Bulletin/Repair Instructions
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 inch) of the original tire placard.
22-01-023H-1
Service Bulletin/Repair Instructions
Certain vehicles listed below may experience the Check Engine warning lamp illuminated with DTC P1326 and/or an engine concern/noise related to connecting rod bearing wear or damage. Follow the procedure to inspect the vehicle and replace the engine and/or update the engine ECU software (if new ROM is available) based on the inspection results.
22-01-028H-1
Service Bulletin/Repair Instructions
Hyundai is conducting a campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM.
22-EM-006H-1
Service Bulletin/Repair Instructions
The Powertrain warranty coverage for certain engine repairs and/or replacement where the engine damage or malfunction is related to connecting rod bearing wear, has been extended to 15 years or 150,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.
DBP966
Service Bulletin/Repair Instructions
Hyundai is conducting a service campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM.
DBPT6G
Service Bulletin/Repair Instructions
Certain vehicles that have completed Service Campaign 966 may experience the Check Engine warning lamp illuminated with DTC P1326 and/or an engine concern/noise related to connecting rod bearing wear or damage. Follow the procedure to inspect the vehicle and replace the engine and/or update the engine ECU software (if new ROM is available) based on the inspection results.
22-01-023H
Service Bulletin/Repair Instructions
Certain vehicles listed below may experience the Check Engine warning lamp illuminated with DTC P1326 and/or an engine concern/noise related to connecting rod bearing wear or damage. Follow the procedure to inspect the vehicle and replace the engine and/or update the engine ECU software (if new ROM is available) based on the inspection results.
22-01-028H
Service Bulletin/Repair Instructions
Hyundai is conducting a campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM.
21-EM-005H-1
Service Bulletin/Repair Instructions
The Powertrain warranty coverage for certain engine repairs and/or replacement where the engine damage or malfunction is related to connecting rod bearing wear, has been extended to 15 years or 150,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.
21-01-023H-3
Service Bulletin/Repair Instructions
Hyundai is conducting a campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM.
21-EM-007H
Service Bulletin/Repair Instructions
This bulletin describes the procedure to diagnose and repair the Engine Electric Water Pump (EEWP) on certain Sonata Hybrid (LF HEV) and Sonata Plug-In Hybrid (LF PHEV) vehicles with DTC P2600, causing an HEV and/or MIL warning lamp illumination.
21-EM-004H
Service Bulletin/Repair Instructions
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-002H
Service Bulletin/Repair Instructions
This bulletin provides best practice recommendations when performing brake service procedures.
21-EM-003H
Service Bulletin/Repair Instructions
This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
20-BR-002H
Service Bulletin/Repair Instructions
This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area.
20-SS-004H
Service Bulletin/Repair Instructions
This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the âTire Balance Data Sheetâ must be fully completed including imbalance and Road Force Variation (RFV) data. The Data Sheet can be found at the end of this bulletin.
20-ST-001H-2
Service Bulletin/Repair Instructions
This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
20-ST-001H-1
Service Bulletin/Repair Instructions
This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
20-BD-014H
Service Bulletin/Repair Instructions
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-BE-008H
Service Bulletin/Repair Instructions
This bulletin provides information for new software to update the Navigation and Display Audio system to include the Apple CarPlay and Android Auto feature. This bulletin describes how to transfer the update software to a storage drive (USB or SD Card) and perform the software installation into the audio system.
20-AT-017H
Service Bulletin/Repair Instructions
If you are servicing an applicable vehicle with the following symptoms and DTC, follow the Service Procedure on Page 4. ï· Check Engine light on ï· DTC P0880/P088000 - TCM Power signal error open/short ï· Transmission stuck in 4th gear fail-safe ï· Harsh shift into Reverse and Drive
20-SS-002H(1)
Service Bulletin/Repair Instructions
This bulletin provides information on tire maintenance best practices and procedures for dealers and customers to maximize tire life and performance.
20-BD-007H-1
Service Bulletin/Repair Instructions
This bulletin describes the general guidelines to help disinfect and protect vehicle exterior/interior surfaces using recommended safe chemical products.
20-EE-003H
Service Bulletin/Repair Instructions
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-016H
Service Bulletin/Repair Instructions
The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
20-AT-014H
Service Bulletin/Repair Instructions
If you are servicing an applicable vehicle with a âCheck Engineâ light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.
20-HA-001H
Service Bulletin/Repair Instructions
This bulletin provides additional service diagnostic information and repair procedures related to electric A/C compressors equipped in hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles.
20-BD-007H
Service Bulletin/Repair Instructions
This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using certain safe chemical products.
20-AT-008H
Service Bulletin/Repair Instructions
If you are servicing an applicable vehicle with a âCheck Engineâ light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.
20-BR-001H
Service Bulletin/Repair Instructions
This bulletin describes the procedure to properly bleed the brakes on Sonata HEV/PHEV (LF) and Ioniq EV/HEV/PHEV (AE) vehicles. This procedure applies when any air is introduced into the Active Hydraulic Boost (AHB) system, which consists of the pressure supply unit (PSU), and the integrated brake actuation unit (IBAU). Improper bleeding of the brake system can result in the presence of air, which may reduce braking effectiveness.
20-SS-001H
Service Bulletin/Repair Instructions
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.
20-BE-001H
Service Bulletin/Repair Instructions
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.
20-ST-001H
Service Bulletin/Repair Instructions
This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
19-AT-021H-1
Service Bulletin/Repair Instructions
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 clutch in the transmission. If the vehicle fails the stall test, replace the transmission. ? PASS: Stall speed is between 1700~2900 rpm (See shop manual for stall speed). ? FAIL: Engine revs to redline limit (6,000~6,500 rpm). If so, replace the transmission.
19-AT-024H
Service Bulletin/Repair Instructions
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 sensor circuit ?P0706 - Range switch range/performance ?P0707 - Range switch - open circuit ?P0708 - Range switch - short circuit or multiple inputs ? Symptoms: ?Malfunction Indicator Light (MIL) illuminated ?4th gear fail-safe ?No gear indication in cluster ?Intermittent no engine crank/no start in ?P? or ?N? with or without MIL or DTC.
19-BE-011H-1
Service Bulletin/Repair Instructions
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 BSD/BCW zone and turns on the BSD/BCW warning lamp for the driver. The warning lamp starts blinking, along with an audible sound, when the driver turns on the turn signal lamp to enter the lane where another vehicle is driving.
19-BE-015H-1
Service Bulletin/Repair Instructions
This bulletin contains information regarding the clock display on certain Navigation (AVN 4.0) head units. This procedure is specifically for the clock date and time not displaying which started appearing around August 17, 2019. Other similar concerns which were opened before this date are a different root cause and will not be resolved by this information. An example of the clock concern is shown in the screenshot below:
19-GI-006H
Service Bulletin/Repair Instructions
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.
19-AT-015H
Service Bulletin/Repair Instructions
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 oil pressure harness
19-EE-001H-1
Service Bulletin/Repair Instructions
This bulletin provides information on how to return a Hyundai HEV/PHEV/EV/Fuel Cell Lithium Battery for proper disposal and safe environmental recycling using Hyundai?s authorized vendor Kinsbursky Brothers Intl. (KBI).
19-BE-009H
Service Bulletin/Repair Instructions
This bulletin provides information for troubleshooting of the Blind-Spot Collision Warning (BCW/BSD) system whenever it exhibits Diagnostic Trouble Code (DTC) C120B/D or C160A.
19-EE-003H
Service Bulletin/Repair Instructions
The following summarizes the service procedures for Lithium Battery replacement:
19-ST-001H
Service Bulletin/Repair Instructions
This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
19-HA-001H
Service Bulletin/Repair Instructions
This bulletin provides additional service diagnostic information and repair procedures related to electric A/C compressors equipped in hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles.
19-FL-003H
Service Bulletin/Repair Instructions
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). Once the VIN has been programmed to the ECM/PCM, it cannot be removed or overwritten.
19-HC-001H
Service Bulletin/Repair Instructions
If you are servicing a Sonata Hybrid with the symptoms and DTC listed below, follow the Service Procedure on Page 2.
5NP-M7Z5K-02
Service Bulletin/Repair Instructions
This bulletin provides information on how to return a Hyundai HEV/PHEV/EV/Fuel Cell Lithium Battery for proper disposal and safe environmental recycling using Hyundai?s authorized vendor Kinsbursky Brothers Inc. (KBI).
5NP-X9G4F-09
Service Bulletin/Repair Instructions
This bulletin describes the proper steps to identify and correct a symptom with a "Subscription Updated" or "Loading" pop-up message shown (intermittently) after every Head Unit boot up.
5NP-N2H7S-06
Service Bulletin/Repair Instructions
This bulletin provides information related to an OBC (On Board Charger) software update for Sonata Plug-In Hybrid (LF PHEV) vehicles.
5NP-U8A5U-06
Service Bulletin/Repair Instructions
Hyundai Motor America is conducting a Service Campaign to update the OBC(On Board Charger)software on certain 2016-17 model year Sonata Plug-In Hybrid vehicles. Service Campaign T2Z provides a service procedure to update the OBC software.
5NP-P5L7D-05
Service Bulletin/Repair Instructions
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-C3P8U-09
Service Bulletin/Repair Instructions
This bulletin describes the procedure to replace the vehicle emission control information label (see example below) applicable to the 2016 Sonata Hybrid / 2016 Sonata Plug-in Hybrid models due to an emission label that may have been installed with the incorrect part number. Verify that the subject vehicle has the correct label per the information provided in this TSB and apply the correct label if required.
5NP-V3F8T-09
Service Bulletin/Repair Instructions
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 sensor circuit ? P0706 - Range switch range/performance ? P0707 - Range switch - open circuit ? P0708 - Range switch - short circuit or multiple inputs ? Symptoms: ? Malfunction Indicator Light (MIL) illuminated ? 4th gear fail-safe ? No gear indication in cluster ? Intermittent no engine crank/no start in ?P? or ?N? with or without MIL or DTC.
5NP-Y9Y9T-07
Service Bulletin/Repair Instructions
When towing a trailer with some LF/LF-HEV/LF-PHEV Sonatas or some AN/NC Santa Fe vehicles equipped with the Blind Spot Detection (BSD) feature, the trailer may interfere with the BSD system operation resulting in cancellation of the BSD operation. When this occurs, a ?BSD canceled? message is displayed in the vehicle?s instrument cluster. The ?BSD canceled? message remains on even if the customer manually disables the BSD system, and may result in customer complaints. This bulletin provides the service procedure to update the system software to turn off the ?BSD canceled? message when the BSD system is manually disabled.
5NP-B3N9F-09
Service Bulletin/Repair Instructions
THIS BULLETIN PROVIDES INFORMATION FOR NEW SOFTWARE TO UPDATE THE NAVIGATION AND DISPLAY AUDIO SYSTEM TO INCLUDE THE APPLE CARPLAY AND ANDROID AUTO FEATURE. THIS BULLETIN DESCRIBES HOW TO TRANSFER THE UPDATE SOFTWARE TO A STORAGE DRIVE (USB OR SD CARD) AND PERFORM THE SOFTWARE INSTALLATION INTO THE AUDIO SYSTEM.
16-01-020
Service Bulletin/Repair Instructions
ENGINE ELECTRIC WATER PUMP WIRING (SERVICE CAMPAIGN TDD) Description: Some 2016 Sonata Hybrid and Plug-In Hybrid vehicles may experience a power reduction accompanied by illumination of multiple warning lights in the instrument cluster. This condition may be due to an intermittent electrical short between the vehicles 12 volt power and the Control Area Network (CAN) High signal in a circuit board in the Engine Electric Water Pump (EEWP). This bulletin describes the service procedure to modify the EEWP wiring harness to eliminate the potential for a short of the CAN signal.
TZ7 DCS
Service Bulletin/Repair Instructions
Service Campaign TZ7 2016 Sonata Plug-In Hybrid High Voltage Battery Cover Replacement (TSB# 16-01-008) Hyundai Motor America is conducting a Service Campaign to replace the high voltage battery cover on certain 2016 Model Year Sonata Plug-In Hybrid vehicles. Service Campaign TZ7 provides a procedure to replace the high voltage battery cover.
TZ5 DCS
Service Bulletin/Repair Instructions
Service Campaign TZ5 2016 Sonata Plug-In Hybrid Distance to Empty Logic Update (TSB# 16-01-005) Hyundai Motor America is re-launching Service Campaign TZ5 to update the BCM & HCU software on certain 2016 Sonata Plug-In Hybrid vehicles. Service Campaign TZ5 provides a procedure to update the ECM software.