2021 Hyundai Tucson GDS Event #1383 Engine Investigation
Hyundai is actively investigating a software-related engine issue, identified as GDS event #1383. While primarily concerning 2015 Sonata 2.4L vehicles, this manufacturer communication is linked by NHTSA to the 2021 Hyundai Tucson, indicating an ongoing review for a resolution.
What's Being Investigated
Hyundai Motor America is actively investigating a software-related engine issue identified as GDS event #1383. This ongoing investigation primarily concerns 2015 model year (MY) Sonata (LFA) vehicles equipped with the 2.4L engine. The manufacturer communication, classified as an SC (Service Communication), indicates that the matter is under review to find a resolution as quickly as possible.
While the communication specifically references the 2015 Sonata, NHTSA has linked this manufacturer communication (NHTSA ID 11030619) to the 2021 Hyundai Tucson, indicating its relevance to owners of this model. The core component under investigation is the engine.
Important Owner Information
For owners of a 2021 Hyundai Tucson, it's crucial to understand the status of Hyundai Tucson GDS event #1383. Hyundai has stated that "The impacted vehicles related to this event will not show open on the VIN in WebDCS while this event is under suspension." This means that if your vehicle is potentially affected, its VIN will not currently appear as having an open campaign or recall in the WebDCS system.
This suspension indicates that the investigation is still ongoing, and a formal resolution or campaign has not yet been finalized or initiated. Owners should be aware that a lack of an open status on a VIN does not necessarily mean the vehicle is not part of the broader investigation.
Next Steps for Owners
As this is an ongoing investigation, specific repair procedures or owner actions are not yet available. Owners of 2021 Hyundai Tucson vehicles should monitor for future updates from Hyundai or NHTSA regarding GDS event #1383.
If you experience any unusual engine behavior or warning lights, it is advisable to contact your authorized Hyundai dealer for diagnosis. Be prepared to reference this manufacturer communication (NHTSA ID 11030619) if discussing the issue with service personnel.
NHTSA ID: 11030619
Frequently Asked Questions
- What is GDS event #1383?
- GDS event #1383 refers to a software-related engine issue that Hyundai Motor America is currently investigating. It primarily concerns 2015MY Sonata 2.4L vehicles, but this communication is also linked to the 2021 Hyundai Tucson.
- Does GDS event #1383 affect my 2021 Hyundai Tucson?
- While the manufacturer communication specifically mentions 2015MY Sonata 2.4L vehicles as the primary subject of the investigation, NHTSA has linked this communication (NHTSA ID 11030619) to the 2021 Hyundai Tucson. This suggests potential relevance for owners of the 2021 Tucson, though a direct impact or resolution is still under investigation.
- How can I check if my VIN is impacted by GDS event #1383?
- According to Hyundai, "The impacted vehicles related to this event will not show open on the VIN in WebDCS while this event is under suspension." This means that currently, your VIN will not show an open status for this particular event in Hyundai's WebDCS system, as the investigation is ongoing and a resolution is pending.
What Hyundai Tucson owners report
Counted from the records in our database across 22 model years.
- 6,738
- Owner complaints
- 37
- Recalls
- 564
- Service bulletins
- 276
- Crashes reported
- 145
- Fires reported
- 256
- Injuries reported
The 2021 model year
80 complaints, the 18th most of 22 model years on file. Owners reported 2 crashes, 3 fires and 7 injuries for this year, which also has 1 recall on file.
Engine, the system this article covers, accounts for 2,451 of 6,738 complaints (36%), including 39 for 2021.
Complaints by model year
| 2012 | 255 | |
|---|---|---|
| 2013 | 266 | |
| 2015 | 229 | |
| 2016 | 1,626 | |
| 2017 | 1,095 | |
| 2018 | 399 | |
| 2019 | 385 | |
| 2021 | 80 | |
| 2022 | 509 | |
| 2025 | 451 |
Most-reported systems
- Engine — 2,451
- Power Train — 1,273
- Electrical System — 849
- Service Brakes — 761
- Forward Collision Avoidance — 432
Latest recalls for the 2021 model year
- 20V543000 — Service Brakes, Hydraulic (Sep 2020) — Park outside
Recent owner reports about engine
I took my car in to Allen Samuals Hyundai dealership to have the 9C2 recall update completed on May 15th 2026. Ever since then my vehicle has had a rough hesitation or sputtering when driving.
Read owner complaints →Engine knock sensor went off and now the engine needs replacement due to faulty cylinder rod.
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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Hyundai Motor America has temporarily suspended Service Campaign 9C2, related to software GDS event #1383, for the 2015 Hyundai Sonata (LFA) 2.4L. Vehicles will not show this campaign as open in WebDCS during the suspension period.
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Hyundai Technical Service Bulletin (TSB) 26-01-033H is a critical reference for Op codes and part numbers under Service Campaign T6G. This campaign addresses engine bearing inspection and replacement for various Hyundai models from 2010-2021, often triggered by DTC P1326 and "Abnormal Engine Noise."
2021 Hyundai Tucson Engine Warranty Extension TSB
Hyundai has issued Technical Service Bulletin 26-01-033H, extending the engine warranty for various models, including the 2021 Hyundai Tucson, to 15 years or 150,000 miles for issues related to connecting rod bearing wear and DTC P1326.
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