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Service bulletins for the 2019 Hyundai Ioniq

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

84 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
20-BR-001H2020-03-06. Service bulletin. SERVICE BRAKES, HYDRAULIC. 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-001H2020-03-06. Service bulletin. SUSPENSION. 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-ST-001H2020-02-03. Service bulletin. STEERING. This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
20-BE-001H2020-02-03. Service bulletin. ELECTRICAL 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.
19-01-042H2020-01-21. Service bulletin. EQUIPMENT. 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.
Campaign T4G Dea2019-12-16. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Hyundai is conducting a Service Campaign to inspect the Electric Water Pump (EWP) assembly.
19-01-036H2019-12-16. Service bulletin. ELECTRICAL SYSTEM. Certain vehicles may incur dash warning light(s) On with DTC(s) stored including either of the following DTC: ? U1116 - Lost Communication With Motor Electronics Coolant Pump (C-CAN) ? U1118 - Lost Communication With Hybrid/EV Battery Electronic Coolant Pump (P-CAN) The vehicle may operate in limp home at a reduced power. The above DTC(s) may occur due to coolant leaking into the Electric Water Pump (EWP) Can Case and may have an intermittent electrical connection. This bulletin provides instructions to inspect the vehicle?s EWP assembly. The Can Case of the EWP or the full EWP Assembly will be replaced depending on the EWP inspection result. The EWP?s connector may also need to be replaced with a wiring harness kit if contamination is confirmed. Perform the inspection procedure as outlined on page-7.
19-BE-011H-12019-12-16. Service bulletin. LANE DEPARTURE; BACK OVER PREVENTION. 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.
Campaign T4C Dea2019-11-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE. Hyundai is conducting a Service Campaign to install a new Air Filter Kit with an updated filter to help prevent DTC P0456 on certain 2017-2019 Ioniq (AE) HEV vehicles.
19-01-030H2019-11-18. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Certain 2017-2019 vehicles may experience check engine light ?ON? with the following DTC stored: ? DTC P0456 - Evaporative System (EVAP) - Very Small LeakThese conditions primarily occur in the California coastal areas that are subject to marine layer cloud cover. Salt particulate deposit can form inside the Natural Vacuum Leak Detection (NVLD) which may cause intermittent operation prompting the DTC P0456 and the check engine light ?ON?. This bulletin provides the procedure to install a new Air Filter Kit with an updated filter to help prevent entry of the salt particulates. In addition, vehicles with check engine light ?ON? and DTC P0456 found stored in the Engine Control Module (ECM) must also replace the NVLD part.
Campaign T4C Dea2019-11-06. Service bulletin. ENGINE AND ENGINE COOLING. Hyundai is conducting a Service Campaign to install a new Air Filter Kit with an updated filter to help prevent DTC P0456 on certain 2017-2019 Ioniq (AE) HEV vehicles.
19-01-030H2019-11-06. Service bulletin. ENGINE AND ENGINE COOLING. "Certain 2017-2019 vehicles may experience check engine light “ON” with the following DTC stored: DTC P0456 - Evaporative System (EVAP) - Very Small LeakThese conditions primarily occur in the California coastal areas that are subject to marine layer cloud cover. Salt particulate deposit can form inside the Natural Vacuum Leak Detection (NVLD) which may cause intermittent operation prompting the DTC P0456 and the check engine light “ON”. This bulletin provides the procedure to install a new Air Filter Kit with an updated filter to help prevent entry of the salt particulates. In addition, vehicles with check engine light “ON” and DTC P0456 found stored in the Engine Control Module (ECM) must also replace the NVLD part."
19-GI-006H2019-11-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 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.
Campaign T3U Dea2019-09-30. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service campaign provides information related to a BMS software update to the diagnostic logic for DTC P1B77 ? ?High Voltage Battery Pre-charging Fault?.
19-01-023H2019-09-30. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This bulletin provides information related to a BMS (Battery Management System) software update to the diagnostic logic for DTC P1B77 ? ?High Voltage Battery Precharging Fault?.
19-EE-001H-12019-08-19. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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-009H2019-07-01. Service bulletin. LANE DEPARTURE; FORWARD COLLISION AVOIDANCE. 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-002H2019-05-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. The following summarizes the service procedure for EV battery replacement:
19-EE-003H2019-05-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. The following summarizes the service procedures for Lithium Battery replacement:
19-ST-001H2019-05-20. Service bulletin. STEERING. This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
19-HA-001H2019-05-20. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. 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-003H2019-05-20. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. 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-BE-004H2019-04-22. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES; VISIBILITY. This bulletin provides information on the serviceable parts for the outside mirror assembly. When diagnosing and repairing the outside mirror, do not replace the entire assembly. Refer to page 2 of this TSB for replacement of individual parts.
19-BE-003H2019-03-18. Service bulletin. ELECTRICAL SYSTEM. Some vehicles equipped with the wireless charging pad may experience a no charging condition. This bulletin provides information of how to diagnose the no charging condition.
T3R Dealer Best2019-03-18. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; ELECTRICAL SYSTEM. The D-Audio lite head home screen on certain 2018 Tucson (TL) and 2018-19 Ioniq Plug-in Hybrid (AE PHEV) vehicles may remain blank. A D-Audio Software Update provided through a USB stick has been made available to correct this issue.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.