Service bulletin 23-AT-009H

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10240089
Published by NHTSA	2023-08-02
Manufacturer's number	23-AT-009H
Manufacturer's date	2023-07-18
NHTSA component	POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:WIRING:POSITION/LIMIT SENSOR/SWITCH

NHTSA's summary

If you are servicing an 8-speed DCT front-wheel-drive vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. • DIAGNOSTIC TROUBLE CODES: ➢ P070500 - Transmission range sensor circuit malfunction ➢ P070512 - Transmission range sensor circuit malfunction ➢ P070514 - Transmission range sensor circuit malfunction ➢ P07051C - Transmission range sensor circuit malfunction ➢ P070600 - Transmission range sensor circuit range/performance ➢ P070661 - Transmission range sensor circuit range/performance ➢ P070696 - Transmission range sensor circuit range/performance • SYMPTOMS: ➢ Malfunction Indicator Light (MIL) illuminated ➢ 5th gear fail-safe ➢ Intermittently won’t shift into D or R ➢ Intermittently won’t shift out of P ➢ Intermittent ly no engine crank in “P” or “

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Transmission and driveline, Automatic transmission, Engine control module, Wiring and fuses

Trouble codes named

P0705, P0706

Vehicles listed
HYUNDAI SANTA FE	2021, 2022, 2023
HYUNDAI SONATA	2021, 2022, 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
23V526000	2023-07-27. POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:PUMP
22V746000	2022-10-06. POWER TRAIN:AUTOMATIC TRANSMISSION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
24-FL-002H	2024-03-05. Service bulletin. This bulletin provides the procedure to update the Engine Control Module (ECM) and/or the Transmission Control Module (TCM) for 2020-2023MY Sonata (DN8/DN8a) vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain circumstances the vehicle may not restart after the ISG system has engaged and requires a manual restart due to the lack of intake manifold pressure recovery.
23-HC-002H	2023-09-06. Service bulletin. This bulletin provides information related to the Engine Control Module (ECM) software update and coolant replacement for 2020-2023MY Sonata Hybrid (DN8 HEV) vehicles to improve the coolant filling mode by discharging air bubbles.
23-AT-006H-1	2023-09-05. Service bulletin. This TSB provides information to diagnose the push button shifter operation. If you are servicing a vehicle with any symptoms listed below or DTCs (listed on Page 2) , follow the Service Procedure on Page 3. SYMPTOMS: • “Shifter System Malfunction” displayed in the cluster • Won’t shift into or out of gear or won’t shift out of Park • Incorrect gear display in cluster and/or won’t start
23-AT-004H	2023-06-02. Service bulletin. This TSB applies only if Recall 236 or Service Campaign T8N has been performed and the 8 speed wet dual clutch transmission (8WDCT) replacement is necessary related due to high pressure electric oil pump (HP EOP) DTC’s P1C2D03 (HP EOP Motor Position Sensor), P193B79 - HP EOP Performance, P0868 - Transmission Fluid Pressure (TFP) Sensor – Low. Replace the 8WDCT under this bulletin.
23-01-031H	2023-05-04. Service bulletin. This bulletin provides information related to the Engine Control Module (ECM) software update for Santa Fe Plug-in Hybrid (TM PHEV) vehicles to add CARB recommended OBD display items & improve the following DTC and symptoms:
23-01-035H	2023-05-04. Service bulletin. This bulletin provides information related to the Engine Control Module (ECM) software update for HMMA (5NM) produced 2023MY Santa Fe Hybrid (TM HEV) vehicles to improve the following DTC and symptoms:
23-EE-007H	2023-05-04. Service bulletin. This bulletin provides information related to the Engine Control Module (ECM) software update for Santa Fe Plug-in Hybrid (TM PHEV) and Santa Fe Hybrid (TM HEV) vehicles to improve the following DTC and symptoms:
22-AT-006H	2022-06-10. Service bulletin. 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 harness.
22-AT-002H	2022-04-08. Service bulletin. Certain vehicles equipped with 8-speed automatic transmission may experience an automatic transmission fluid (ATF) leak at the rear cover. This type of leak is caused by a porous casting on the rear cover of the transmission.
22-01-006H	2022-02-08. Service bulletin. This bulletin provides the procedure to update the ECU and TCU software to improve drivability and shift quality when accelerating.