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Chevrolet U0142

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

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Chevrolet dealer or qualified service provider if U0142 is stored with a radio/infotainment concern or if diagnosis is needed. Applicability of PIT6393 and the current software level should be confirmed by the service provider.
Confidence95%

Quick answer

For covered Chevrolet vehicles, U0142 is listed in GM/NHTSA PIT6393 as a radio-related DTC that may set because of a software anomaly. The bulletin says to ignore this DTC in that bulletin context and not replace the radio for it.

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 U0142 mean?

For covered Chevrolet vehicles, U0142 is listed in GM/NHTSA PIT6393 as a radio-related DTC that may set because of a software anomaly. The bulletin says to ignore this DTC in that bulletin context and not replace the radio for it.

2. Technical explanation

The supplied official NHTSA manufacturer communications identify U0142 among radio-related DTCs. PIT6393 revisions state that U0142, along with certain companion DTCs, may set due to a software anomaly. The supplied evidence does not establish a general diagnostic definition for U0142 beyond this bulletin context.

3. What system is affected?

Radio/infotainment system context is established by the supplied GM/NHTSA bulletin evidence.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Not yet established by verified evidence. The supplied PIT6393 excerpts refer to customer symptoms, but do not include the symptom list.

6. Possible causes

  • A radio software anomaly is established by PIT6393 as a reason U0142 may set in the bulletin context.
  • Other causes are 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 with a Chevrolet dealer or qualified service provider and provide the stored DTC and any customer concern.
  • Do not authorize radio replacement solely because U0142 is present when PIT6393 applies; the bulletin specifically says not to replace the radio for the listed DTCs.
  • Have the service provider check for applicable radio software updates using current GM service information.

10. Step-by-step troubleshooting

  1. Confirm the vehicle model, model year, and U.S. applicability before applying the bulletin guidance.
  2. Retrieve all stored DTCs and document the customer concern.
  3. For the PIT6393 bulletin context, GM directs that U0142 be ignored because it may set due to a software anomaly.
  4. Follow current GM service procedures for any applicable radio software update. The supplied evidence notes that USB-file-transfer radio updates require care, but does not provide the complete procedure.

11. When to contact service

Contact a Chevrolet dealer or qualified service provider if U0142 is stored with a radio/infotainment concern or if diagnosis is needed. Applicability of PIT6393 and the current software level should be confirmed by the service provider.

12. What the service center may check

  • Verify whether GM/NHTSA manufacturer communication PIT6393 applies to the specific vehicle and customer concern.
  • Check the radio software level and applicable GM update information.
  • Review U0142 together with other stored DTCs and the reported concern.

13. Possible repair or resolution

  • For vehicles and conditions covered by PIT6393, GM states that U0142 may be ignored because it can set from a software anomaly.
  • PIT6393 states not to replace the radio for U0142 and the other listed DTCs in its bulletin context.
  • A radio software update may be relevant, but the supplied evidence does not establish the exact update, eligibility, or outcome for every vehicle.

14. Affected vehicles

15. Related TSBs / service bulletins

  • PIT6393J — NHTSA Manufacturer Communication 11029962, published March 6, 2026. Lists U0142 as a DTC that may set due to a software anomaly; says not to replace the radio for the listed DTCs. https://static.nhtsa.gov/odi/tsbs/2026/MC-11029962-0001.pdf
  • PIT6457B — NHTSA Manufacturer Communication 11027686, published January 12, 2026. Lists U0142 among radio-related DTC keywords. https://static.nhtsa.gov/odi/tsbs/2026/MC-11027686-0001.pdf
  • PIT6393H — NHTSA Manufacturer Communication 11026861, published December 23, 2025. https://static.nhtsa.gov/odi/tsbs/2025/MC-11026861-0001.pdf
  • PIT6393F — NHTSA Manufacturer Communication 11024704, published October 23, 2025. https://static.nhtsa.gov/odi/tsbs/2025/MC-11024704-0001.pdf
  • PIT6393E — NHTSA Manufacturer Communication 11024438, published October 4, 2025. https://static.nhtsa.gov/odi/tsbs/2025/MC-11024438-0001.pdf
  • PIT6393D — NHTSA Manufacturer Communication 11023907, published October 1, 2025. https://static.nhtsa.gov/odi/tsbs/2025/MC-11023907-0001.pdf
  • PIT6393C — NHTSA Manufacturer Communication 11023342, published September 15, 2025. https://static.nhtsa.gov/odi/tsbs/2025/MC-11023342-0001.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified NHTSA manufacturer communication evidence applies to U.S. Chevrolet Blazer (2023–2026), Bolt EV (2023–2026), Bolt EUV (2023–2026), and Equinox (2023–2026). The supplied data includes overlapping Equinox applicability entries. Bulletin applicability to an individual vehicle and concern must be confirmed through current GM service information.

19. Frequently asked questions

What does Chevrolet U0142 mean in the supplied evidence?

The supplied evidence establishes that U0142 is included in GM radio-related bulletin guidance. It does not establish a broader general definition of the code.

Should the radio be replaced for U0142?

Not when PIT6393 applies. The bulletin states that the listed DTCs, including U0142, may set because of a software anomaly and says not to replace the radio for them.

Is U0142 safe to drive or charge with?

Not yet established by verified evidence.

Which Chevrolet vehicles are listed in the supplied applicability data?

U.S. 2023–2026 Blazer, Bolt EV, Bolt EUV, and Equinox vehicles are listed. Individual bulletin applicability still requires confirmation.

20. Sources & verification

ReferenceVerified
Chevrolet U0142: If customer concern is related to one of the symptoms… | EV Diagnostics