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Chevrolet B1C64

PIT6274B Published date: 01/8/2025 Preliminary I

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Chevrolet dealer or qualified service facility if the Service Camera System message occurs or B1C64 is stored. Provide the bulletin reference PIT6274C and the DTC status (current or history).
Confidence95%

Quick answer

For applicable 2025–2026 Chevrolet Blazer and Equinox vehicles in the US, B1C64 may occur with an intermittent “Service Camera System” message. Chevrolet’s PIT6274B/C identifies it as a possible false DTC/message caused by a software anomaly and says not to replace parts at this time.

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 B1C64 mean?

For applicable 2025–2026 Chevrolet Blazer and Equinox vehicles in the US, B1C64 may occur with an intermittent “Service Camera System” message. Chevrolet’s PIT6274B/C identifies it as a possible false DTC/message caused by a software anomaly and says not to replace parts at this time.

2. Technical explanation

Verified manufacturer communication PIT6274B/C states that B1C64 can be stored as a current or history DTC when an intermittent “Service Camera System” message occurs. The bulletin identifies a software anomaly as the cause of the false DTC and/or message. The evidence does not establish a component failure from B1C64 alone.

3. What system is affected?

Camera system, based on the verified “Service Camera System” message described in PIT6274B/C.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • An intermittent “Service Camera System” message may be displayed.
  • B1C64 may be present as a current or history DTC.

6. Possible causes

  • A software anomaly may cause a false B1C64 DTC and/or intermittent Service Camera System message.

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 whether the Service Camera System message is intermittent and whether B1C64 is current or history.
  • Have a Chevrolet dealer or qualified service facility evaluate the vehicle using applicable manufacturer information.
  • Do not authorize parts replacement solely on the basis of this bulletin; PIT6274B/C says not to replace parts at this time.

10. Step-by-step troubleshooting

  1. Confirm whether B1C64 is stored as current or history.
  2. Check for the intermittent “Service Camera System” message.
  3. Use the applicable Chevrolet service information and PIT6274C guidance. Further diagnostic steps are not established by the supplied verified evidence.

11. When to contact service

Contact a Chevrolet dealer or qualified service facility if the Service Camera System message occurs or B1C64 is stored. Provide the bulletin reference PIT6274C and the DTC status (current or history).

12. What the service center may check

  • Verify whether the vehicle is a US-market 2025–2026 Chevrolet Blazer or Equinox.
  • Confirm whether B1C64, B020A, or B1C48 is current or history.
  • Confirm whether an intermittent “Service Camera System” message is present.
  • Review Chevrolet bulletin PIT6274C.

13. Possible repair or resolution

  • PIT6274B/C instructs: do not replace any parts at this time.
  • The supplied evidence does not establish a final software update, repair procedure, or resolution beyond the bulletin instruction.

14. Affected vehicles

15. Related TSBs / service bulletins

  • PIT6274C, published July 16, 2025: Official manufacturer communication describing possible intermittent Service Camera System message with B020A, B1C64, or B1C48; identifies a software anomaly and instructs not to replace parts at this time. https://static.nhtsa.gov/odi/tsbs/2025/MC-11020879-0001.pdf
  • PIT6274C, published July 16, 2025: Duplicate official NHTSA manufacturer communication record. https://static.nhtsa.gov/odi/tsbs/2025/MC-11020880-0001.pdf
  • PIT6274B, published January 9, 2025: Earlier official manufacturer communication covering the same false-DTC/message condition. https://static.nhtsa.gov/odi/tsbs/2025/MC-11012940-0001.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

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

19. Frequently asked questions

What does B1C64 mean on an applicable Chevrolet Blazer or Equinox?

PIT6274B/C associates B1C64 with a possible intermittent “Service Camera System” message. It may be stored as a current or history DTC and may be false because of a software anomaly.

Should camera-system parts be replaced for B1C64?

No parts should be replaced at this time according to PIT6274B/C.

Which vehicles are covered by the supplied evidence?

US-market Chevrolet Blazer and Equinox vehicles for model years 2025–2026 are listed in the supplied applicability data. The data also separately lists 2025 Blazer and Equinox entries.

Is B1C64 safe to drive with?

Not yet established by verified evidence.

Does B1C64 affect EV charging?

Not yet established by verified evidence.

20. Sources & verification

Verified
Chevrolet B1C64: PIT6274B Published date: 01/8/2025 Preliminary I | EV Diagnostics