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Genesis P077300

19-AT-008G Page 12 of 12 31. Input the 8-digit code recorded in Step 10 in the blank spaces in the GDS. Select OK. Input the 8 digit code again and select OK. The GDS will confirm

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Genesis dealer or qualified service facility for automatic-transaxle diagnosis and, where applicable, the GDS procedure identified in TSB 19-AT-008G.
Confidence95%

Quick answer

For a 2023–2024 Genesis G80 in the US, verified evidence links DTC P077300 to Genesis TSB 19-AT-008G. The bulletin identifies P077300 as a solenoid-related automatic-transaxle DTC and specifies a GDS “Oil Pressure Characteristics Input (Solenoid valve Replacement)” procedure for this code.

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 P077300 mean?

For a 2023–2024 Genesis G80 in the US, verified evidence links DTC P077300 to Genesis TSB 19-AT-008G. The bulletin identifies P077300 as a solenoid-related automatic-transaxle DTC and specifies a GDS “Oil Pressure Characteristics Input (Solenoid valve Replacement)” procedure for this code.

2. Technical explanation

The supplied NHTSA manufacturer communication for Genesis TSB 19-AT-008G states that the GDS procedure is required only for certain solenoids, including P077300. The procedure directs the technician to select S/W Management, Automatic Transaxle, and Oil Pressure Characteristics Input (Solenoid valve Replacement), select the solenoid type, and enter an 8-digit code twice for confirmation. The evidence does not establish the exact component fault, diagnostic criteria, or repair needed for an individual vehicle.

3. What system is affected?

Automatic transaxle / solenoid-related oil-pressure-characteristics input procedure.

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

  • A solenoid-related automatic-transaxle condition is indicated by the verified TSB context. The specific underlying cause of P077300 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 Genesis dealer or qualified service facility using the appropriate GDS procedure.
  • Provide the technician with DTC P077300 and reference Genesis TSB 19-AT-008G.

10. Step-by-step troubleshooting

  1. The verified bulletin directs use of GDS S/W Management > Automatic Transaxle > Oil Pressure Characteristics Input (Solenoid valve Replacement).
  2. The technician selects the applicable solenoid type from the drop-down menu.
  3. The bulletin instructs entry of an 8-digit code recorded in an earlier bulletin step, followed by re-entry of the same code for confirmation.
  4. Whether this procedure applies to a particular vehicle condition or follows a specific repair is not yet established by the supplied verified evidence.

11. When to contact service

Contact a Genesis dealer or qualified service facility for automatic-transaxle diagnosis and, where applicable, the GDS procedure identified in TSB 19-AT-008G.

12. What the service center may check

  • Confirm DTC P077300 with the vehicle diagnostic system.
  • Review Genesis TSB 19-AT-008G and determine whether the specified GDS oil-pressure-characteristics input procedure applies.
  • If applicable, perform the GDS code-entry confirmation procedure described in the bulletin.

13. Possible repair or resolution

  • Not yet established by verified evidence. The supplied bulletin verifies a post-solenoid-replacement oil-pressure-characteristics input procedure for P077300, but does not establish a specific repair for every occurrence of the code.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Genesis TSB 19-AT-008G, published April 8, 2019 as NHTSA Manufacturer Communication PDF 10253024. It lists P077300 among codes requiring the stated GDS Oil Pressure Characteristics Input (Solenoid valve Replacement) procedure.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official source: NHTSA Manufacturer Communication PDF 10253024, Genesis TSB 19-AT-008G: https://static.nhtsa.gov/odi/tsbs/2019/MC-10253024-0001.pdf

19. Frequently asked questions

What does P077300 mean for the Genesis G80?

Verified evidence associates P077300 with a solenoid-related automatic-transaxle procedure in Genesis TSB 19-AT-008G. A more specific fault definition is not yet established by the supplied verified evidence.

Does the bulletin require a special procedure?

Yes. The bulletin states that P077300 is among the codes for which the GDS Oil Pressure Characteristics Input (Solenoid valve Replacement) procedure is necessary.

Is P077300 confirmed to be a recall?

Not yet established by verified evidence.

20. Sources & verification

Verified
Genesis P077300: 19-AT-008G Page 12 of 12 31. Input the 8-digit code… | EV Diagnostics