Verified EV diagnostic knowledge page

Chevrolet U3003

G111 and/or G112 may not be properly torqued. Correction: Inspect G111 and G112 to confirm they are torqued to specifications. Re

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService evaluation is appropriate because the verified correction requires inspection and torque confirmation of specified ground connections. The need for immediate service is not yet established by verified evidence.
Confidence95%

Quick answer

For certain U.S. Chevrolet Blazer (2024–2026) and Equinox (2024–2026) vehicles, U3003 is documented in GM bulletin PIT6282/PIT6282A in connection with G111 and/or G112 potentially not being torqued to specification. The bulletin directs inspection and correction of those grounds to specification.

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 U3003 mean?

For certain U.S. Chevrolet Blazer (2024–2026) and Equinox (2024–2026) vehicles, U3003 is documented in GM bulletin PIT6282/PIT6282A in connection with G111 and/or G112 potentially not being torqued to specification. The bulletin directs inspection and correction of those grounds to specification.

2. Technical explanation

Verified bulletin evidence identifies G111 and/or G112 as potentially not properly torqued. U3003 is one of several DTCs that may be present under the condition described in PIT6282 and PIT6282A. Separate 2026 PIT6503-series evidence references U3003-16, or similar low-voltage/12-V DTCs, as an indicator to correct a 12-V power issue before replacing the front-view camera module.

3. What system is affected?

Verified evidence points to the G111 and G112 ground connections and, in separate PIT6503-series guidance, the vehicle 12-V power system. A specific broader system name is not established by verified evidence.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • PIT6282/PIT6282A states that U3003 may be present with the bulletin’s described condition.
  • The supplied verified excerpt indicates a starter-related concern when the Start button is pressed, but the complete symptom wording is truncated in the available evidence.
  • PIT6503-series evidence identifies active or recurring U3003-16, or similar DTCs, as low-voltage/12-V power DTCs in its diagnostic process.

6. Possible causes

  • G111 and/or G112 may not be properly torqued, according to PIT6282 and PIT6282A.
  • For U3003-16 or similar DTCs in PIT6503-series diagnostics, a 12-V power issue is identified as requiring correction. Further 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

  • Have a qualified Chevrolet service facility inspect the concern using applicable GM service information.
  • Do not replace the front-view camera module solely because low-voltage/12-V DTCs such as U3003-16 are active or recurring; PIT6503-series guidance says to correct the 12-V power issue first.
  • Do not attempt high-voltage repairs based on this code information.

10. Step-by-step troubleshooting

  1. Confirm the exact DTC suffix and whether U3003 is active or recurring.
  2. For the PIT6282/PIT6282A condition, inspect G111 and G112 and confirm they are torqued to specification, following GM service procedures.
  3. For active or recurring U3003-16 or similar low-voltage DTCs in the PIT6503-series context, diagnose and correct the 12-V power issue using applicable service information before replacing the front-view camera module.

11. When to contact service

Service evaluation is appropriate because the verified correction requires inspection and torque confirmation of specified ground connections. The need for immediate service is not yet established by verified evidence.

12. What the service center may check

  • Retrieve stored, active, and recurring DTCs, including the complete U3003 suffix.
  • Inspect G111 and G112 and confirm torque to specification, as directed by PIT6282/PIT6282A.
  • If U3003-16 or similar low-voltage DTCs are active or recurring in the PIT6503-series diagnostic context, diagnose the 12-V power issue before replacing the B174W front-view camera module.

13. Possible repair or resolution

  • PIT6282/PIT6282A directs correction by confirming G111 and G112 are torqued to specification.
  • PIT6503-series guidance directs correction of the 12-V power issue before front-view camera module replacement when applicable low-voltage DTCs are active or recurring.

14. Affected vehicles

15. Related TSBs / service bulletins

  • PIT6282, published November 12, 2024: Identifies G111 and/or G112 as potentially not properly torqued and directs inspection to confirm torque to specification. NHTSA communication MC-11011192-0001.
  • PIT6282A, published November 18, 2024: Updated bulletin evidence with the same verified G111/G112 torque-related cause and correction. NHTSA communication MC-11011319-0001.
  • PIT6503, published April 14, 2026: In its front-camera diagnostic process, directs correction of active or recurring low-voltage/12-V DTCs such as U3003-16 before front-camera replacement. NHTSA communication MC-11031514-0001.
  • PIT6503A, published June 3, 2026: Revised PIT6503 guidance concerning U3003-16 or similar low-voltage/12-V DTCs. NHTSA communication MC-11033726-0001.
  • PIT6503B, published June 17, 2026: Revised PIT6503 guidance concerning U3003-16 or similar low-voltage/12-V DTCs. NHTSA communication MC-11034014-0001.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted manufacturer communications: PIT6282/PIT6282A and PIT6503/PIT6503A/PIT6503B. https://static.nhtsa.gov/odi/tsbs/2024/MC-11011192-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2024/MC-11011319-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2026/MC-11031514-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2026/MC-11033726-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2026/MC-11034014-0001.pdf

19. Frequently asked questions

What does U3003 mean in the supplied Chevrolet evidence?

For the PIT6282/PIT6282A condition, U3003 may be present where G111 and/or G112 may not be properly torqued. The directed correction is to inspect those points and confirm torque to specification.

Does U3003-16 mean the front-view camera must be replaced?

No. In PIT6503-series guidance, active or recurring U3003-16 or similar low-voltage/12-V DTCs require correction of the 12-V power issue before replacement of the B174W front-view camera module.

Which vehicles are covered by the supplied applicability data?

U.S. Chevrolet Blazer model years 2024–2026 and Chevrolet Equinox model years 2024–2026 are listed. The supplied records include overlapping Equinox year ranges.

20. Sources & verification

ReferenceVerified
Chevrolet U3003: G111 and/or G112 may not be properly torqued.… | EV Diagnostics