WenmarOpen by Wenmar Pro

Service bulletin 23-AT-005H

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)
TypeService bulletin
NHTSA id10237190
Published by NHTSA2023-06-03
Manufacturer's number23-AT-005H
Manufacturer's date2023-05-18
NHTSA componentPOWER TRAIN

NHTSA's summary

This bulletin provides the procedure to update the TCU to revise the logic for P0741 (Torque converter clutch circuit).

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

Transmission and driveline

Trouble codes named

P0741

Vehicles listed
HYUNDAI SANTA FE2019, 2020

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

Other bulletins for the same vehicles and component
23-AT-003H-12023-09-06. Service bulletin. If you are servicing an 8-speed vehicle with a “Check Engine” light on and one or more of the DTC listed, follow the service procedure and replace the related solenoid and harness.
22-AT-006H2022-06-10. 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-005H2022-05-10. 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 solenoid and valve body harness.
21-01-011H2021-03-05. Service bulletin. This bulletin provides the procedure to update the TCU to optimize the Distance To Empty (DTE) display. This update includes the software for optimizing CLR_DIST (Distance traveled since DTCs cleared) display.
20-AT-005H-12020-11-06. 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 solenoid and valve body harness.
20-AT-022H2020-10-08. Service bulletin. This bulletin provides the procedure to update the TCU for a shift flare and shock on reacceleration when driving in Sport Mode.
20-AT-020H2020-10-08. Service bulletin. 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.
20-FL-004H2020-06-06. Service bulletin. This bulletin describes the Idle Stop and Go (ISG) system operation, diagnostic and battery sensor recalibration procedure. Refer to applicable Shop Manual and Owner’s Manual for additional information.
20-AT-019H2020-06-06. Service bulletin. 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.
20-AT-017H2020-06-06. Service bulletin. 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