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Cadillac 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 Cadillac dealer or qualified service facility if U0142 is present with a radio or infotainment concern, so they can assess applicability of the current manufacturer communication and software procedure.
Confidence95%

Quick answer

For applicable U.S. Cadillac EVs, U0142 is listed in Cadillac radio-related service communications as a DTC that may set because of a software anomaly. The cited bulletins instruct technicians to ignore U0142 in that context and not replace the radio solely for this DTC.

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 applicable U.S. Cadillac EVs, U0142 is listed in Cadillac radio-related service communications as a DTC that may set because of a software anomaly. The cited bulletins instruct technicians to ignore U0142 in that context and not replace the radio solely for this DTC.

2. Technical explanation

The verified evidence does not establish a general technical definition for U0142 in all vehicles. For the listed Cadillac applications, multiple NHTSA-hosted manufacturer communications identify U0142 among radio-related DTCs that can set due to a software anomaly. The bulletins state that the radio should not be replaced for these DTCs. The diagnostic record’s canonical wording is incomplete: “If customer concern is related to one of the symptoms below, verify cust.”

3. What system is affected?

Radio-related system, based on the cited manufacturer communications. A more specific subsystem is not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied verified evidence does not assign a severity level.

5. Symptoms you may notice

  • The supplied evidence indicates that a customer concern may be evaluated under the relevant radio service bulletin, but the actual symptom list is not included in the provided evidence.
  • Specific driver-visible symptoms are not yet established by verified evidence.

6. Possible causes

  • For the applicable Cadillac radio-bulletin context, a software anomaly can cause U0142 to set.
  • 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

  • Record any radio or infotainment concern and when it occurs.
  • Have a Cadillac dealer or qualified service facility review the stored DTCs and applicable radio service information.
  • Do not authorize radio replacement solely because U0142 is present in the bulletin-described context.

10. Step-by-step troubleshooting

  1. A qualified technician should determine whether the vehicle and customer concern fall within the applicable Cadillac radio service communication.
  2. For the covered context, the cited communications direct technicians to ignore U0142 because it may result from a software anomaly.
  3. The supplied evidence references radio software updates, including a caution concerning USB file transfer, but does not provide enough procedure detail for a user-performed update.

11. When to contact service

Contact a Cadillac dealer or qualified service facility if U0142 is present with a radio or infotainment concern, so they can assess applicability of the current manufacturer communication and software procedure.

12. What the service center may check

  • Confirm vehicle model year, U.S. market applicability, and the presence of a related radio or infotainment concern.
  • Check for U0142 and the other DTCs referenced by the manufacturer communication.
  • Review the applicable current radio software guidance.
  • Do not replace the radio solely for U0142 when the bulletin-described software-anomaly condition applies.

13. Possible repair or resolution

  • For the bulletin-described condition, Cadillac communications indicate that U0142 should be ignored and the radio should not be replaced solely for this code.
  • 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

  • PIT6393J, NHTSA Manufacturer Communication 11029962, published March 6, 2026: lists U0142 among DTCs that may set due to a software anomaly; do not replace the radio for these DTCs. https://static.nhtsa.gov/odi/tsbs/2026/MC-11029962-0001.pdf
  • PIT6457B, NHTSA Manufacturer Communication 11027686, published January 12, 2026: references U0142 in radio-related service information. https://static.nhtsa.gov/odi/tsbs/2026/MC-11027686-0001.pdf
  • PIT6393H, NHTSA Manufacturer Communication 11026861, published December 23, 2025: lists U0142 as a software-anomaly DTC and advises against radio replacement for the listed DTCs. 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

  • No recall is established by the supplied verified evidence.

17. Official manufacturer information

Verified applicability: U.S. Cadillac CELESTIQ, LYRIQ, OPTIQ, and VISTIQ model years 2023–2026, with some supplied entries beginning in 2024. Consult the vehicle-specific manufacturer communication through a Cadillac dealer or the NHTSA links provided.

19. Frequently asked questions

Does U0142 mean the radio must be replaced?

No, not in the bulletin-described Cadillac condition. The cited manufacturer communications state that U0142 may set due to a software anomaly and direct technicians not to replace the radio for the listed DTCs.

Is it safe to drive or charge with U0142?

Not yet established by verified evidence.

Which vehicles are covered by the supplied evidence?

U.S. Cadillac CELESTIQ, LYRIQ, OPTIQ, and VISTIQ applications from model years 2023–2026, subject to the specific bulletin and vehicle configuration.

20. Sources & verification

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