2020 Hyundai Sonata technical service bulletins
103 technical service bulletins and manufacturer communications cover the 2020 Hyundai Sonata.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This bulletin provides information related to the navigation and head unit software changes introduced in...
- Some Hyundai vehicles may be equipped with a parking distance warning (PDW) sensor(s) that may trigger...
- Higher-than-expected engine oil consumption
- Higher-than-expected engine oil consumption
- The federal safety agency has issued an urgent safety advisory regarding dangerous, counterfeit...
- The federal safety agency has identified the presence of substandard and dangerous driver’s-side airbag...
- Certain warning lights and trigger DTC C272246 fault code for the front camera
- DTCs P218100, P2181F0, and/or P2181F1 (Cooling System Performance) set in the Engine Control Module,...
- This bulletin provides information regarding condensation related to the accumulated moisture in the...
- This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and...
- This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and...
- Loss of connectivity or interruptions in the middle of using Bluelink Service functions
- Issues with the air conditioning due to damaged wiring in the engine room junction box
- Diagnostic Trouble Code (DTC) P0451 (also known as DTC P14EE00) stored in the Electronic Control Unit...
- DTC P0451 stored in the ECU. Follow
- The subject vehicles may have Diagnostic Trouble Code (DTC) P0451 stored in the ECU, which could
- DTC P0451 stored in the ECU. Follow
- Diagnostic Trouble Code (DTC) P0451 stored in the Electronic Control Unit (ECU). The California Air...
- Warning lamp illumination for a diagnostic trouble code P2181 that is related to the Integrated Thermal...
- Condition where the radio app crashes frequently when entering radio mode and/or displays a message that...
- This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with...
- This bulletin provides the procedure to update the Engine Control Module (ECM) and/or the Transmission...
- This bulletin contains information about the proper removal of the windshield wiper blade protective cover...
- Condition where the radio app crashes frequently when entering radio mode and/or displays a message that...
- This TSB provides information to diagnose the push button shifter operation.
- This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
- If you are servicing an 8-speed front-wheel-drive vehicle equipped with automatic transaxle with one or...
- If you are servicing an 8-speed vehicle with a “Check Engine” light on and one or more of the DTC listed,...
- This bulletin provides warranty procedure for EGR Valve replacement related to DTC P0401 EGR Flow...
- This TSB provides information to diagnose the push button shifter operation
- This Service Information bulletin provides information on how to update the Apple Carplay software from...
- If you are servicing an 8-speed front-wheel-drive vehicle equipped with automatic transaxle with one or...
- Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships
- This bulletin provides the procedure to repair poor pin tension at joint connector JE202 in certain Sonata...
- This bulletin provides the procedure to repair poor pin tension at joint connector JE102 in certain Sonata...
- Follow the guidelines outlined in
- Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for...
- Bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly
- If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC...
- If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC...
- Bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly
- MIL with DTC(s): • P2074: Mass Airflow Sensor Plausibility • P2074F0: Manifold Absolute Pressure/Mass Air Flow
- This TSB provides a procedure to diagnose the push button shifter operation
- MIL with DTC(s): • P2074: Mass Airflow Sensor Plausibility • P2074F0: Manifold Absolute Pressure/Mass Air Flow
- Check engine light in conjunction with a popping noise, abnormal smell from the engine compartment, rough...
- Bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly
- This TSB provides a procedure to diagnose the push button shifter operation.
- This bulletin provides information related to an Electronic Control Module (ECM) software update which...
- If you are servicing an 8-speed front-wheel-drive vehicle with the DTC or symptoms listed below, refer to...
- This bulletin provides the service procedure for engine connecting rod bearing clearance testing
- This bulletin provides best practice recommendations when performing brake service procedures.
- When using Wireless CarPlay, the system may intermittently auto disconnect
- This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
- This bulletin provides information related to an Electronic Control Module (ECM) software update which...
- The rack-mounted dual pinion Motor Driven Power Steering (MDPS) system components can be replaced...
- This bulletin describes the procedure to replace the front door module assembly if the front door window...
- This bulletin describes the procedure to inspect and identify fluid which may appear around the brake...
- This bulletin describes the procedure to diagnose and repair a window exhibiting noise while lowering and...
- This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration...
- Inoperative air conditioning system with cold air not blowing from the vents
- This bulletin provides information and procedures for collecting OBD “In Use Monitor Performance Ratio”...
- This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering...
- Bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly
- This bulletin provides a procedure to transfer pressure data to the TCU using GDS Mobile
- This bulletin provides information regarding condensation related to moisture accumulation in the...
- This bulletin provides information related to an Electronic Control Module (ECM) software update to revise...
- This service campaign information is related to an Electronic Control Module (ECM) software update to...
- This bulletin describes the Idle Stop and Go (ISG) system operation, diagnostic and battery sensor...
- If you are servicing any of the vehicles listed below with a harsh and/or delayed shift, use the GDS as...
- This bulletin provides information on tire maintenance best practices and procedures for dealers and...
- This bulletin describes the general guidelines to help disinfect and protect vehicle exterior/interior...
- This bulletin provides information on identifying dealer stock vehicles with either: • A Battery SOC alert
- The automatic transmission warranty repair policy authorizes in-dealership repairs of the following...
- Grease leak coming from the right side, inner CV axle boot area
- Hyundai vehicles are equipped with Dark Current Control logic to help reduce amperage draw amount and...
- This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using...
- This bulletin describes the mandatory procedure to submit battery test data electronically for battery...
- This bulletin describes the procedure to repair an inside door handle exhibiting noise when opening the door.
- If you are servicing an 8-speed front-wheel-drive vehicle with the DTC or symptoms listed below, refer to...
- This bulletin provides information related to an Electronic Control Module (ECM) software update to revise...
- This service campaign provides information related to an ECM software update to revise the logic for DTC...
- This bulletin describes the requirements for all wheel alignment and/or vehicle tracking claims and best...
- If you are servicing an applicable vehicle with a Check Engine light on and one or more of the DTC listed...
- If you are servicing an applicable vehicle with a Check Engine light on and one or more of the DTC listed...
- If you are servicing an applicable vehicle with a Check Engine light on and one or more of the DTC listed...
- This bulletin provides guidelines to inspect the USB, head unit, and multi-box for common connection...
- On certain Sonata (DN8) vehicles equipped with smart user features, the registered Hyundai app and the...
- This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC...
- This bulletin describes the procedure to identify and retrieve the Unique Identification Numbers (UID)...
- This bulletin describes the procedure to inspect, and if necessary re-route the main harness adjacent to...
- Service brakes
- This bulletin provides information and procedures for collecting OBD ?In Use Monitor Performance Ratio?...
- This bulletin provides information on the Launch Quality Monitoring Process (LQMP) for the 2020MY Hyundai...
VIN decoder
See the problems and recalls for an exact car
Buying a used 2020 Hyundai Sonata?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history