# Service bulletin 20\-AT\-019H

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: 10176196
- Published by NHTSA: 2020\-06\-06
- Manufacturer's number: 20\-AT\-019H
- Manufacturer's date: 2020\-05\-21
- NHTSA component: POWER TRAIN

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176196-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176196-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2020 HYUNDAI PALISADE
- 2019 to 2020 HYUNDAI SANTA FE
- 2018 to 2020 HYUNDAI SONATA

## Recalls for the same vehicles and component

- [2018135](/recalls/tc/2018135.md), 2018-03-16: Powertrain

## 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.
- [24\-FL\-002H](/bulletins/10251294.md), 2024-03-05, Service bulletin: POWER TRAIN; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); ENGINE AND ENGINE COOLING. 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\-EM\-009H](/bulletins/10247605.md), 2023-12-22, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN. Certain 2020\-2023MY Sonata Hybrid \(DN8 HEV\) vehicles may exhibit coolant leakage, engine overheating, and white smoke from the exhaust due to an internal leak at the Exhaust Heat Recovery System \(EHRS\) portion of the center muffler assembly. Follow the procedure outlined in this bulletin to repair this condition after confirming EHRS is leaking internally.
- [23\-01\-093H](/bulletins/10247604.md), 2023-12-22, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. This bulletin provides the procedure to update the Hybrid Control Unit \(HCU\) and Dual Automatic Temperature Control \(DATC\) software to help improve coolant flow to the Exhaust Heat Recovery System \(EHRS\).
- [23\-AT\-006H\-2](/bulletins/10245580.md), 2023-11-30, Service bulletin: POWER TRAIN. This TSB provides information to diagnose the push button shifter operation.
- [23\-AT\-008H\-1](/bulletins/10243329.md), 2023-10-02, Service bulletin: POWER TRAIN. If you are servicing an 8\-speed front\-wheel\-drive vehicle equipped with automatic transaxle with one or more of 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 Park ➢ Intermittent ly no engine cr ank/n o start in “P” or “N” with or without MIL or DTC.
- [23\-AT\-003H\-1](/bulletins/10241885.md), 2023-09-06, Service bulletin: POWER TRAIN. 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.
- [23\-HC\-002H](/bulletins/10241883.md), 2023-09-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); POWER TRAIN. 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\-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\-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

JSON: [/v1/bulletins/10176196](/v1/bulletins/10176196)

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