2019 Hyundai Sonata Technical Service Bulletins

170 technical service bulletins (TSBs) are on record for the 2019 Hyundai Sonata. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10186825Jan 28, 2021Steering. The rack-mounted dual pinion Motor Driven Power Steering (MDPS) system components can be replaced separately from the complete assembly. This bulletin provides information on the separate components and the replacement procedure of these components.
• 10186820Jan 14, 2021Transmission and drivetrain. This bulletin provides the procedure to update the TCU for a rough idle in Drive with Neutral Control enabled. The rough idle may occur only at a stop in Drive with the A/C off and the ATF temperature between 158~210°F (70~99°C). This update also reduces vibration when the brake is released during Neutral Control operation and the accelerator pedal is depressed.
• 10186818Jan 12, 2021Engine cooling. The warranty coverage for the engine long block for engine repairs or replacement related to connecting rod bearing damage as described in Campaign T3G (Seized and/or BCT No Pass Result Only) has been extended to 10 years or 120,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners. Please refer to TSB # 20-01-024H-2 (or…
• 10185445Dec 21, 2020Electrical system, Equipment, Engine cooling. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results. Consult the Hyundai Warranty Policy & Procedures and the below chart to determine New or Reman engine usage.
• 10185438Dec 21, 2020Engine cooling. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.
• 10183963Nov 30, 2020Brakes. This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area.
• 10183960Nov 19, 2020Tires, Wheels. This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the “Tire Balance Data Sheet” must be fully completed including imbalance and Road Force Variation (RFV) data. The Data Sheet can be found at the end of this bulletin.
• 10183958Nov 12, 2020Engine cooling. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results. Consult the Hyundai Warranty Policy & Procedures and the below chart to determine New or Reman engine usage.
• 10183957Nov 12, 2020Equipment, Electrical system, Engine cooling. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.
• 10182314Oct 13, 2020Transmission and drivetrain. 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 valve body harness.
• 10182304Oct 9, 2020Equipment, Electrical system. This bulletin provides information and procedures for collecting OBD “In Use Monitor Performance Ratio” (IUMPR) data on certain 2019-2021MY vehicles at California dealers. This reporting is mandated by CARB (California Air Resources Board).
• 10181009Sep 17, 2020Engine cooling. The warranty coverage for the engine long block has been extended to 10 years or 120,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.
• 10180985Sep 9, 2020Equipment, Steering. 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 assembly.
• 10180981Sep 9, 2020Equipment, Steering. This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
• 10180977Sep 2, 2020Transmission and drivetrain. This bulletin provides a procedure to transfer pressure data to the TCU using GDS Mobile. This procedure is necessary to reduce the transmission learning time and improve the shift quality.
• 10179246Aug 10, 2020Electrical system, Steering. 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 assembly.
• 10179244Aug 10, 2020Steering, Electrical system. This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
• 10178175Jul 14, 2020Exterior lighting, Equipment. 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…
• 10178174Jul 13, 2020Engine, Equipment. This Dealer Best Practice intends to inform dealers of a proposed settlement (“Settlement”) for a class action lawsuit filed against Hyundai Motor America (“HMA”). Beginning in July 2020, customers affected by the proposed settlement will begin becoming informed of the settlement by mailed notice and email, and they may direct questions to dealers. Please go to HyundaiThetaEngineSettlement.com for full…
• 10177127Jun 3, 2020Engine, Equipment. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedures on TSB #20-01-004H-1 (supersedes TSB #20-01-004H) to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.
• 10177126Jun 3, 2020Engine, Electrical system. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.
• 10177125Jun 3, 2020Electrical system, Engine. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results. Consult the Hyundai Warranty Policy & Procedures and the below chart to determine New or Reman engine usage.
• 10176196May 21, 2020Transmission and drivetrain. If you are servicing any of the vehicles listed below with a harsh and/or delayed shift, use the GDS as shown in the Service Procedure to measure shift engagement time.
• 10176194May 21, 2020Transmission and drivetrain. If you are servicing an applicable vehicle with the following symptoms and DTC, follow the Service Procedure on Page 4.  Check Engine light on  DTC P0880/P088000 - TCM Power signal error open/short  Transmission stuck in 4th gear fail-safe  Harsh shift into Reverse and Drive
• 10176182May 6, 2020Tires, Wheels. This bulletin provides information on tire maintenance best practices and procedures for dealers and customers to maximize tire life and performance.
• 10176178May 1, 2020Equipment. This bulletin describes the general guidelines to help disinfect and protect vehicle exterior/interior surfaces using recommended safe chemical products.
• 10174808Apr 23, 2020Electrical system, Equipment. 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.
• 10174807Apr 17, 2020Equipment, Transmission and drivetrain. The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
• 10174799Apr 9, 2020Equipment, Transmission and drivetrain. 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.
• 10173548Mar 25, 2020Brakes. 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.
• 10173546Mar 23, 2020Equipment. This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using certain safe chemical products.
• 10173545Mar 18, 2020Electrical system. 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 right after an incident battery is removed from the vehicle or after a battery charge is completed which qualifies for a warranty. It must be run at any time between RO open and close dates.
• 10172228Feb 27, 2020Equipment, Engine cooling. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedures on TSB #20-01-004H (supersedes TSB #19-01-006H-4) rotate the crankshaft, perform the bearing inspection (if crankshaft does rotate) and/or replace the engine based on the crankshaft/bearing inspection results.
• 10172227Feb 20, 2020Electrical system, Equipment, Transmission and drivetrain. 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.
• 10172224Feb 18, 2020Equipment, Engine cooling, Electrical system. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.
• 10172223Feb 18, 2020Equipment, Engine cooling, Electrical system. Hyundai is conducting a product improvement 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, a chime will sound on certain vehicles, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to…
• 10172220Feb 18, 2020Equipment, Engine cooling, Electrical system. Hyundai has developed a new engine monitoring technology called a Knock Sensor Detection System (KSDS). The technology uses software innovations and leverages existing engine sensors to continuously monitor for symptoms that may precede an engine failure. Watch this video to learn more. The KSDS software continuously monitors engine vibrations for unusual patterns that develop as an engine connecting rod bearing…
• 10172142Feb 5, 2020Suspension. 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.
• 10170889Jan 27, 2020Engine cooling. 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 input/output speed sensor and oil pressure harness.
• 10170887Jan 27, 2020Engine cooling. 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 oil pressure harness with integrated oil temperature sensor.
• 10170886Jan 27, 2020Engine cooling. 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.
• 10170883Jan 16, 2020Electrical system. 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.
• 10170896Jan 3, 2020Steering. This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
• 10170899Jan 2, 2020Transmission and drivetrain. 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).
• 10170512Dec 17, 2019Equipment. This bulletin provides information and procedures for collecting OBD ?In Use Monitor Performance Ratio? (IUMPR) data on certain 2019-2020MY vehicles at California dealers. This reporting is mandated by CARB (California Air Resources Board). Data is no longer submitted to Hyundai by datasheet and dealer email. Data is sent electronically by GDS when the procedure of this bulletin is followed.
• 10170511Dec 17, 2019Equipment, Transmission and drivetrain. 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…
• 10169380Nov 15, 2019Electrical system. 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…
• 10169370Nov 4, 2019Back-over prevention (rear camera), Lane departure. 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…
• 10167769Oct 28, 2019Engine, Equipment. The warranty coverage for the engine long block has been extended to 10 years or 120,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.
• 10167768Oct 28, 2019Electrical system, Equipment. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and install a wire harness extension and/or replacement engine based on the inspection results.

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