# Service bulletin 20\-AT\-023H

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: 10182299
- Published by NHTSA: 2020\-11\-06
- Manufacturer's number: 20\-AT\-023H
- Manufacturer's date: 2020\-10\-05
- NHTSA component: POWER TRAIN

## NHTSA's summary

This bulletin provides the procedure to identify the correct transmission part number for 2013\~14 Sonata \(YF\) 2.4L by referring to the transmission number. Some transmissions installed during the transition from 2013 to 2014 model years may be mixed from 8/20/2013 to 10/17/2013. NOTE: An incorrect transmission part number may cause a 2\-3 shift flare.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182299-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182299-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2013 to 2014 HYUNDAI SONATA

## Recalls for the same vehicles and component

- [2014323](/recalls/tc/2014323.md), 2014-08-01: Powertrain
- [14V434000](/recalls/nhtsa/14V434000.md), 2014-07-18: POWER TRAIN:AUTOMATIC TRANSMISSION

## Other bulletins for the same vehicles and component

- [24\-AT\-002H](/bulletins/10253275.md), 2024-04-16, Service bulletin: POWER TRAIN. This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with Incorrect Ratio DTC \(transmission clutch slip in gear above limit\) listed on Page 2.
- [23\-01\-054H](/bulletins/10243376.md), 2023-10-02, Service bulletin: POWER TRAIN; HYBRID PROPULSION SYSTEM. Certain 2013\-2015MY Sonata Hybrid \(YF HEV\) vehicles may exhibit warning lights on while driving and the inability to restart the ignition after it has been turned off when stopped. TSB 23\-01\-054H outlines the service process to inspect the fuse and safety plug assembly, and replace the parts as needed. This best practice provides helpful tips and key notes when carrying out this service campaign.
- [23\-01\-054H](/bulletins/10243375.md), 2023-10-02, Service bulletin: POWER TRAIN. Certain Sonata Hybrid \(YF HEV\) vehicles may exhibit warning lights on while driving and the inability to restart the ignition after it has been turned off when stopped. This bulletin provides the procedure to inspect the safety plug and fuse and replace parts as necessary.
- [23\-01\-014H\-5](/bulletins/10241874.md), 2023-09-06, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. Hyundai has launched an anti\-theft software upgrade and window decal campaign \(Campaign 993\), combined with an anti\-theft steering wheel lock campaign \(Campaign P32\), in response to an increase in thefts of certain 2011\-2022MY Hyundai vehicles not equipped with engine immobilizers targeted through social media. For certain vehicles that cannot be updated with the software \(Campaign 993\), Hyundai is offering customers steering wheel locks at the dealer \(Campaign P32\). This Dealer Best Practices Guide provides information to assist dealership personnel with customer questions relating to the immobilizer software upgrade, window decals and steering wheel lock ant\-theft solutions available from HMA through Hyundai dealers.
- [23\-HC\-001H](/bulletins/10238380.md), 2023-07-01, Service bulletin: POWER TRAIN. On certain Sonata hybrid \(YF HEV\) vehicles, the HEV safety plug or power relay assembly \(PRA\) may cause the following symptoms and one or more current related DTCs. Follow the Service Procedure before diagnosing the hybrid battery. Please review the following instructions carefully to determine applicability depending on the model year of your vehicle.
- [21\-EM\-005H](/bulletins/10190049.md), 2021-04-07, Service bulletin: POWER TRAIN; ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. The Powertrain warranty coverage for certain engine repairs and/or replacement where the engine damage, defect, or failure is related to connecting rod bearing wear, has been extended to 15 years or 150,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.
- [20\-AT\-017H](/bulletins/10176194.md), 2020-06-06, Service bulletin: POWER TRAIN. 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
- [20\-AT\-016H](/bulletins/10174807.md), 2020-05-07, Service bulletin: POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. The automatic transmission warranty repair policy authorizes in\-dealership repairs of the following components for both OEM \(new\) and remanufactured automatic transmissions:
- [20\-AT\-014H](/bulletins/10174799.md), 2020-05-07, Service bulletin: POWER TRAIN; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. 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.
- [20\-AT\-008H](/bulletins/10172227.md), 2020-03-07, Service bulletin: POWER TRAIN; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. 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.

JSON: [/v1/bulletins/10182299](/v1/bulletins/10182299)

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