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Chevrolet B1C48

Correction Do not replace any parts at this time. Engineering

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Chevrolet dealer or qualified service facility for diagnosis and ask them to review PIT6274C. Verified evidence states not to replace parts at this time for the condition described in that communication.
Confidence95%

Quick answer

For applicable 2025–2026 Chevrolet Blazer and Equinox vehicles in the U.S., B1C48 is covered by GM communication PIT6274C. It may occur with an intermittent “Service Camera System” message and is identified as a false DTC/message caused by a software anomaly. The bulletin states: do not replace any parts at this time; engineering is investigating.

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 B1C48 mean?

For applicable 2025–2026 Chevrolet Blazer and Equinox vehicles in the U.S., B1C48 is covered by GM communication PIT6274C. It may occur with an intermittent “Service Camera System” message and is identified as a false DTC/message caused by a software anomaly. The bulletin states: do not replace any parts at this time; engineering is investigating.

2. Technical explanation

Verified NHTSA-posted manufacturer communication PIT6274C states that B1C48 may be stored as a current or history DTC during diagnosis of an intermittent “Service Camera System” message. The communication identifies the condition as a false DTC and/or message due to a software anomaly. It directs that no parts be replaced at this time while engineering investigates.

3. What system is affected?

Camera system, based on the verified intermittent “Service Camera System” message described in PIT6274C.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • An intermittent “Service Camera System” message.
  • B1C48 may be present as a current or history DTC.

6. Possible causes

  • A software anomaly causing a false DTC and/or false message, as identified in PIT6274C.

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

  • Do not replace parts solely for B1C48 under the condition described in PIT6274C.
  • Have the vehicle evaluated by a Chevrolet dealer or qualified service facility, particularly if the Service Camera System message is present.
  • Provide the service facility with DTC B1C48 and reference GM/NHTSA manufacturer communication PIT6274C.

10. Step-by-step troubleshooting

  1. Verify whether the vehicle is an applicable U.S.-market 2025–2026 Chevrolet Blazer or Equinox.
  2. Check whether an intermittent “Service Camera System” message has occurred.
  3. Determine whether B1C48 is stored as a current or history DTC.
  4. Review PIT6274C before authorizing component replacement. The bulletin identifies this condition as a false DTC/message caused by a software anomaly.

11. When to contact service

Contact a Chevrolet dealer or qualified service facility for diagnosis and ask them to review PIT6274C. Verified evidence states not to replace parts at this time for the condition described in that communication.

12. What the service center may check

  • Confirm vehicle applicability: 2025–2026 Chevrolet Blazer or Equinox, U.S. market.
  • Check for an intermittent “Service Camera System” message.
  • Check whether B1C48 is current or stored in history.
  • Review GM communication PIT6274C, which identifies a false DTC/message due to a software anomaly.

13. Possible repair or resolution

  • Do not replace any parts at this time for the condition addressed by PIT6274C.
  • Engineering investigation is indicated in the verified manufacturer communication.
  • A final repair or software update is not yet established by the supplied verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • PIT6274C, published July 16, 2025; NHTSA manufacturer communication PDFs MC-11020879-0001 and MC-11020880-0001. It covers intermittent Service Camera System messages with B020A, B1C64, or B1C48 as current or history DTCs, identifies a false DTC/message from a software anomaly, and states not to replace parts at this time.

16. Recall information

  • No recall information is established by the supplied verified evidence.

17. Official manufacturer information

NHTSA-hosted GM manufacturer communication PIT6274C: https://static.nhtsa.gov/odi/tsbs/2025/MC-11020879-0001.pdf

19. Frequently asked questions

What does Chevrolet B1C48 mean?

For the condition described in PIT6274C, B1C48 can be a false DTC associated with an intermittent “Service Camera System” message due to a software anomaly.

Should parts be replaced for B1C48?

No. PIT6274C states, “Do not replace any parts at this time.”

Which vehicles are covered by the verified evidence?

The supplied applicability evidence identifies U.S.-market 2025–2026 Chevrolet Blazer and Equinox vehicles.

Is B1C48 safe to drive or charge with?

Not yet established by verified evidence.

20. Sources & verification

Verified
Chevrolet B1C48: Correction Do not replace any parts at this time.… | EV Diagnostics