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Dodge U12B3

Lost Communication With Occupant Restraint Controller (ORC)

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService need is not established by the supplied data. However, because the code concerns communication with the Occupant Restraint Controller, professional diagnosis is appropriate.
Confidence95%

Quick answer

U12B3 means “Lost Communication With Occupant Restraint Controller (ORC).” Verified evidence links this code to MIL illumination on certain 2024–2025 Dodge Charger vehicles in the US.

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 U12B3 mean?

U12B3 means “Lost Communication With Occupant Restraint Controller (ORC).” Verified evidence links this code to MIL illumination on certain 2024–2025 Dodge Charger vehicles in the US.

2. Technical explanation

This is a communication-related DTC identifying lost communication with the Occupant Restraint Controller (ORC). The supplied official manufacturer-communication evidence lists the code as U12B3-00.

3. What system is affected?

Occupant Restraint Controller (ORC) communication. No further system details are established by the verified evidence.

4. How serious is this code?

Unknown. The verified evidence does not establish severity.

5. Symptoms you may notice

  • Malfunction Indicator Lamp (MIL) illumination is documented in the supplied official manufacturer-communication evidence.

6. Possible causes

  • 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 diagnostic evaluation by an authorized Dodge service facility or other qualified vehicle technician.
  • Do not attempt high-voltage or restraint-system repairs based on this code alone.

10. Step-by-step troubleshooting

  1. Confirm the stored DTC with appropriate diagnostic equipment.
  2. Review applicable Dodge manufacturer communications 08-015-26 and 08-016-26 for the vehicle's exact configuration. Further diagnostic steps are not established by the supplied verified evidence.

11. When to contact service

Service need is not established by the supplied data. However, because the code concerns communication with the Occupant Restraint Controller, professional diagnosis is appropriate.

12. What the service center may check

  • Verify whether U12B3-00 is stored.
  • Check whether the vehicle is a US-market 2024 or 2025 Dodge Charger.
  • Review the applicable official manufacturer communication. Specific inspection or repair checks are not established by the supplied evidence.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 11027846, bulletin 08-015-26, published January 23, 2026. The supplied summary documents MIL illumination and U12B3-00, along with U0151-00.
  • NHTSA Manufacturer Communication 11027847, bulletin 08-016-26, published January 23, 2026. The supplied summary documents MIL illumination and U12B3-00, along with U0151-00.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified applicability: US-market 2024 Dodge Charger and 2025 Dodge Charger. Official sources: NHTSA Manufacturer Communications 11027846 (08-015-26) and 11027847 (08-016-26), both published January 23, 2026.

19. Frequently asked questions

What does U12B3 mean?

It means “Lost Communication With Occupant Restraint Controller (ORC).”

What vehicle symptom is documented for U12B3?

The supplied official manufacturer-communication evidence documents Malfunction Indicator Lamp (MIL) illumination.

Which vehicles are verified as applicable?

The supplied applicability data identifies US-market 2024 and 2025 Dodge Charger vehicles.

Is it safe to drive or charge with U12B3?

Not yet established by verified evidence.

20. Sources & verification

Verified
Dodge U12B3: Lost Communication With Occupant Restraint Controller (ORC) | EV Diagnostics