Verified EV diagnostic knowledge page

Hyundai P072900

2012~17 2018~ 2011 2012~17 2011~16 2017~ 2013~14 2013~17 2018~ 2018~ 2007~12 2013~18 2013~19 2020~ 2019~ 2011~14 2015~ 2011~15 2016~ 2010~15 2016~ 2013~15 2019~ Accent (RB) Accent

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService need is not explicitly established by the supplied evidence; however, the code is covered by Hyundai manufacturer communications concerning transaxle incorrect-ratio DTCs, so professional diagnosis is appropriate.
Confidence95%

Quick answer

P072900 is identified in Hyundai manufacturer communications as “Gear 6 incorrect ratio.” The communications describe this as transaxle clutch slipping by more than 200 rpm while in gear. The supplied evidence does not establish driving safety, charging safety, severity, a specific root cause, or a repair for an individual vehicle.

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 P072900 mean?

P072900 is identified in Hyundai manufacturer communications as “Gear 6 incorrect ratio.” The communications describe this as transaxle clutch slipping by more than 200 rpm while in gear. The supplied evidence does not establish driving safety, charging safety, severity, a specific root cause, or a repair for an individual vehicle.

2. Technical explanation

Hyundai manufacturer communications 19-AT-012H and 20-AT-001H list P0729/P072900 as “Gear 6 incorrect ratio.” Their evidence summary defines the applicable incorrect-ratio condition as transaxle clutch slipping more than 200 rpm in gear. This is transmission/transaxle diagnostic information, not a high-voltage charging-system diagnosis.

3. What system is affected?

Transaxle / transmission gear-ratio monitoring, specifically Gear 6.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • The verified communications associate the code with transaxle clutch slipping more than 200 rpm in gear.
  • A specific underlying cause 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 by a Hyundai-qualified service provider.
  • Provide the stored code exactly as P072900 and note any operating conditions observed when it was recorded.
  • Do not attempt high-voltage or transmission repair procedures based on this information.

10. Step-by-step troubleshooting

  1. A service provider can confirm whether P072900 is present and evaluate it using the applicable Hyundai service information.
  2. Further diagnostic steps are not established by the supplied verified evidence.

11. When to contact service

Service need is not explicitly established by the supplied evidence; however, the code is covered by Hyundai manufacturer communications concerning transaxle incorrect-ratio DTCs, so professional diagnosis is appropriate.

12. What the service center may check

  • Confirm P072900 / P0729 is stored.
  • Assess the Gear 6 incorrect-ratio condition under applicable Hyundai diagnostic procedures.
  • Determine the vehicle-specific applicability of Hyundai communications 19-AT-012H and 20-AT-001H.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Hyundai communication 19-AT-012H, published June 4, 2019: lists P0729/P072900 as Gear 6 incorrect ratio within a group of transaxle incorrect-ratio DTCs.
  • Hyundai communication 20-AT-001H, published January 2, 2020: lists P0729/P072900 as Gear 6 incorrect ratio within a group of transaxle incorrect-ratio DTCs.
  • The supplied evidence summaries do not establish the complete vehicle applicability or a prescribed repair for a specific Hyundai Kona or Sonata.

16. Recall information

  • No recall information was supplied or established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Hyundai manufacturer communications: 19-AT-012H (https://static.nhtsa.gov/odi/tsbs/2019/MC-10163279-9999.pdf) and 20-AT-001H (https://static.nhtsa.gov/odi/tsbs/2020/MC-10170899-0001.pdf).

19. Frequently asked questions

What does P072900 mean?

Verified Hyundai manufacturer communication evidence identifies P072900 as “Gear 6 incorrect ratio.”

What condition is associated with this code?

The supplied Hyundai communication summaries describe incorrect-ratio DTCs as transaxle clutch slipping more than 200 rpm in gear.

Is P072900 an EV battery or charging code?

The verified evidence concerns transaxle gear-ratio monitoring. It does not identify P072900 as a battery or charging-system code.

Can I drive with P072900?

Not yet established by verified evidence.

Can I charge with P072900 present?

Not yet established by verified evidence.

20. Sources & verification

Verified
Hyundai P072900: 2012~17 2018~ 2011 2012~17 2011~16 2017~ 2013~14… | EV Diagnostics