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Genesis P0729

2019~ 2019~ 2019~ G70 (IK) G80 (DH) G90 (HI) WARRANTY INFORMATION: Normal Warranty applies SERVICE PROCEDURE: 1. Connect a GDS and check for DTC. Record the DTC and delete the DTC

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceA Genesis service facility should diagnose the condition using GDS. The supplied communication states that normal warranty applies for its listed applicable vehicles, but warranty eligibility for a specific vehicle is not established by the supplied evidence.
Confidence95%

Quick answer

For the supplied Genesis G80 applicability, P0729 is identified in the verified manufacturer communication as “Gear 6 incorrect ratio.” The communication describes this group of incorrect-ratio DTCs as transaxle clutch slipping more than 200 rpm while in gear.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does P0729 mean?

For the supplied Genesis G80 applicability, P0729 is identified in the verified manufacturer communication as “Gear 6 incorrect ratio.” The communication describes this group of incorrect-ratio DTCs as transaxle clutch slipping more than 200 rpm while in gear.

2. Technical explanation

NHTSA-hosted Genesis manufacturer communication 19-AT-012G lists P0729/P072900 as Gear 6 incorrect ratio. It states that the listed incorrect-ratio DTCs concern transaxle clutch slipping more than 200 rpm in gear. The documented procedure begins by connecting a GDS, checking for DTCs, recording them, and deleting them. If solenoid DTCs are found, the communication directs technicians to refer to additional information, but that additional information was not supplied as verified evidence here.

3. What system is affected?

Transaxle, based on the verified manufacturer communication.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • A P0729/P072900 diagnostic trouble code may be stored.
  • The manufacturer communication associates the code with an incorrect Gear 6 ratio and transaxle clutch slipping more than 200 rpm in gear.

6. Possible causes

  • Transaxle clutch slipping more than 200 rpm in gear is the condition described for the incorrect-ratio DTC group.
  • Whether any specific component, solenoid, fluid condition, wiring issue, or internal mechanical fault causes P0729 is not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Arrange diagnosis using a Genesis-compatible GDS diagnostic tool or by a qualified Genesis service facility.
  • Record all stored DTCs before clearing them, consistent with the documented service procedure.
  • Do not perform transaxle repair based solely on this code without the applicable diagnostic information.

10. Step-by-step troubleshooting

  1. Connect a GDS and check for DTCs.
  2. Record the DTCs.
  3. Delete the DTCs.
  4. If solenoid DTCs are found, the communication instructs technicians to refer to further information; the applicable follow-on procedure is not included in the supplied evidence.

11. When to contact service

A Genesis service facility should diagnose the condition using GDS. The supplied communication states that normal warranty applies for its listed applicable vehicles, but warranty eligibility for a specific vehicle is not established by the supplied evidence.

12. What the service center may check

  • Check, record, and clear DTCs using GDS.
  • Determine whether solenoid DTCs are present.
  • Use the applicable manufacturer diagnostic information if solenoid DTCs are found; details were not supplied in the verified evidence.

13. Possible repair or resolution

  • The supplied evidence does not establish a specific repair for P0729.
  • The manufacturer communication is titled as a transaxle repair procedure for the listed incorrect-ratio DTCs, but its complete repair steps were not supplied.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Genesis manufacturer communication 19-AT-012G, published June 4, 2019 and hosted by NHTSA as MC-10253025, lists P0729/P072900 as Gear 6 incorrect ratio.
  • The communication lists 2019~ G70 (IK), G80 (DH), and G90 (HI) as applicable vehicles in its excerpt. Separately supplied applicability data identifies Genesis G80 model years 2023–2024 in the US; the relationship between that applicability record and the 2019 communication excerpt is not established by the supplied evidence.

16. Recall information

  • No recall information was supplied as verified evidence.

17. Official manufacturer information

Verified source: NHTSA-hosted Genesis manufacturer communication PDF 10253025 / 19-AT-012G: https://static.nhtsa.gov/odi/tsbs/2019/MC-10253025-0001.pdf

19. Frequently asked questions

What does Genesis P0729 mean?

The verified manufacturer communication identifies P0729/P072900 as “Gear 6 incorrect ratio.”

What condition does the communication associate with P0729?

It describes the listed incorrect-ratio DTCs as transaxle clutch slipping more than 200 rpm in gear.

Is it safe to drive with P0729?

Not yet established by verified evidence.

What is the documented first diagnostic step?

Connect a GDS, check for DTCs, record them, and delete them.

Is there a verified recall for P0729?

No recall information was supplied as verified evidence.

20. Sources & verification

ReferenceVerified
Genesis P0729: 2019~ 2019~ 2019~ G70 (IK) G80 (DH) G90 (HI) WARRANTY… | EV Diagnostics