# Service bulletin 23\-FL\-007H

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.

- Type: Service bulletin
- NHTSA id: 10247606
- Published by NHTSA: 2023\-12\-22
- Manufacturer's number: 23\-FL\-007H
- Manufacturer's date: 2023\-12\-15
- NHTSA component: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

This bulletin provides the procedure to update the Transmission Control Module \(TCM\) for the 2022MY Tucson \(NX4/NX4a\) vehicles and the Engine Control Module \(ECM\) for the 2022\-24MY Tucson vehicles to improve operation of the Idle Stop and Go \(ISG\) system. Under certain circumstances the vehicle may not restart after ISG system has engaged and require a manual restart due to the lack of intake manifold pressure recovery.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10247606-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10247606-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline, Automatic transmission, Transmission control module

## Vehicles listed

- 2022 to 2024 HYUNDAI TUCSON

## Recalls for the same vehicles and component

- [23V526000](/recalls/nhtsa/23V526000.md), 2023-07-27: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:PUMP

## Other bulletins for the same vehicles and component

- [23\-AT\-006H\-1](/bulletins/10241796.md), 2023-09-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. 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
- [22\-AT\-002H](/bulletins/10210200.md), 2022-04-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. 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](/bulletins/10207806.md), 2022-02-08, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. This bulletin provides the procedure to update the ECU and TCU software to improve drivability and shift quality when accelerating.

JSON: [/v1/bulletins/10247606](/v1/bulletins/10247606)

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