Verified EV diagnostic knowledge page

Chevrolet U0265

If customer concern is related to one of the symptoms below, verify customers r

DriveNot yet established by verified evidence. The record lists safe-to-drive status as unknown.
ChargeNot yet established by verified evidence. The record lists safe-to-charge status as unknown.
ServiceContact an authorized Chevrolet dealer or qualified service facility if there is a customer concern or U0265 is stored. Ask them to review the applicable GM PIT6393 communication and current service information.
Confidence95%

Quick answer

For covered U.S. Chevrolet Blazer, Bolt EV, Bolt EUV, and Equinox model years, verified GM communications identify U0265 as a radio-related DTC that may set because of a software anomaly. The bulletin direction is to ignore this DTC in the stated context and not replace the radio solely for it.

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

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does U0265 mean?

For covered U.S. Chevrolet Blazer, Bolt EV, Bolt EUV, and Equinox model years, verified GM communications identify U0265 as a radio-related DTC that may set because of a software anomaly. The bulletin direction is to ignore this DTC in the stated context and not replace the radio solely for it.

2. Technical explanation

The supplied diagnostic record does not provide a complete code definition; its canonical meaning is truncated. Verified NHTSA-hosted GM manufacturer communications (PIT6393C through PIT6393J) state that U0265 can set due to a software anomaly in the radio-related diagnostic context. Those communications instruct technicians to ignore U0265 when it is among the listed DTCs and not replace the radio for these DTCs. A separate related GM communication, PIT6457B, includes U0265 in its radio/DTC keyword list. The verified evidence does not establish a broader generic definition, a failed component, or a vehicle-wide fault from U0265 alone.

3. What system is affected?

Radio/infotainment-related diagnostic context. The exact module and full DTC definition are not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied diagnostic record lists severity as unknown. Verified evidence indicates a potential radio software anomaly in the specified bulletin context, but does not assign a safety severity.

5. Symptoms you may notice

  • The supplied source excerpts refer to customer concerns and symptoms, but do not provide the actual symptom list.
  • Specific symptoms for U0265 are not yet established by verified evidence.

6. Possible causes

  • A radio software anomaly is verified as a reason U0265 may set in the GM bulletin context.
  • Any other cause is not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence. The record lists safe-to-drive status as unknown.

8. Can I charge the vehicle?

Not yet established by verified evidence. The record lists safe-to-charge status as unknown.

9. What you can safely do

  • Record the stored DTCs and any customer concern for a Chevrolet dealer or qualified service facility.
  • Use the applicable GM service information and manufacturer communication when evaluating U0265.
  • Do not authorize radio replacement based on U0265 alone when the applicable PIT6393 bulletin direction applies.

10. Step-by-step troubleshooting

  1. Confirm whether the vehicle is a covered U.S. Chevrolet model and model year.
  2. Have a qualified technician review all stored DTCs and the applicable GM bulletin context.
  3. For the specified listed radio-related DTC context, GM communications direct technicians to ignore U0265 because it may result from a software anomaly.
  4. Not yet established by verified evidence: additional diagnostic steps for U0265 outside the bulletin context.

11. When to contact service

Contact an authorized Chevrolet dealer or qualified service facility if there is a customer concern or U0265 is stored. Ask them to review the applicable GM PIT6393 communication and current service information.

12. What the service center may check

  • Confirm vehicle model, model year, and U.S. applicability.
  • Check whether U0265 appears with the radio-related DTC context described in GM PIT6393 communications.
  • Review the applicable radio software update procedure in GM service information. The supplied bulletin excerpts caution that USB-file radio software updates must be performed correctly, but do not provide the full procedure.
  • Do not replace the radio for U0265 alone in the stated bulletin context.

13. Possible repair or resolution

  • For the stated GM bulletin context, ignore U0265 as a DTC setting due to a software anomaly.
  • Do not replace the radio for U0265 alone in that context.
  • Whether a software update resolves an individual vehicle concern is not yet established by the supplied verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • GM PIT6393J, NHTSA Manufacturer Communication MC-11029962-0001, published March 6, 2026: states listed DTCs including U0265 may set due to a software anomaly; directs technicians to ignore them and not replace the radio.
  • GM PIT6457B, NHTSA Manufacturer Communication MC-11027686-0001, published January 12, 2026: includes U0265 in its radio/DTC keyword list.
  • GM PIT6393H, NHTSA Manufacturer Communication MC-11026861-0001, published December 23, 2025.
  • GM PIT6393F, NHTSA Manufacturer Communication MC-11024704-0001, published October 23, 2025.
  • GM PIT6393E, NHTSA Manufacturer Communication MC-11024438-0001, published October 4, 2025.
  • GM PIT6393D, NHTSA Manufacturer Communication MC-11023907-0001, published October 1, 2025.
  • GM PIT6393C, NHTSA Manufacturer Communication MC-11023342-0001, published September 15, 2025.

16. Recall information

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

17. Official manufacturer information

Verified official source: NHTSA-hosted GM manufacturer communication PIT6393J (MC-11029962-0001): https://static.nhtsa.gov/odi/tsbs/2026/MC-11029962-0001.pdf

19. Frequently asked questions

What does U0265 mean on a covered Chevrolet EV?

The complete definition is not provided in the supplied evidence. In the verified GM radio-related bulletin context, U0265 may set because of a software anomaly.

Should the radio be replaced for U0265?

No, not when the applicable GM PIT6393 bulletin context applies. The communications specifically direct technicians not to replace the radio for U0265 and the other listed DTCs.

Is U0265 safe to drive with?

Not yet established by verified evidence. The diagnostic record marks safe-to-drive status as unknown.

Does U0265 affect charging?

Not yet established by verified evidence. The diagnostic record marks safe-to-charge status as unknown.

Which vehicles are covered by the supplied applicability data?

U.S. Chevrolet Blazer, Bolt EV, Bolt EUV, and Equinox entries spanning 2023–2026 are supplied. The source data includes duplicate Equinox applicability ranges, including 2023–2026 and 2024–2026.

20. Sources & verification

ReferenceVerified
Chevrolet U0265: If customer concern is related to one of the symptoms… | EV Diagnostics