Verified EV diagnostic knowledge page

Jeep B1561

Antenna loose connection ]. - TBM sleep mode not working causing battery drain in some cases. - Error display of "Uconnect Box Req

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact an authorized Jeep service facility for diagnosis, particularly if the Uconnect service message is displayed or there is suspected battery drain.
Confidence95%

Quick answer

B1561 is identified in verified Jeep service communication as a Telematics Box Module (TBM) DTC associated with an antenna loose-connection condition. The same communication reports that affected customers may see “Uconnect Box Requires Service” pop-ups and, in some cases, TBM sleep-mode operation may not work, contributing to battery drain.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

Video guides

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DTC Suzuki B1561 Short ExplanationMaxidot Jeep
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Videos are supporting material and never override OEM or regulator evidence.

1. What does B1561 mean?

B1561 is identified in verified Jeep service communication as a Telematics Box Module (TBM) DTC associated with an antenna loose-connection condition. The same communication reports that affected customers may see “Uconnect Box Requires Service” pop-ups and, in some cases, TBM sleep-mode operation may not work, contributing to battery drain.

2. Technical explanation

Verified evidence links B1561 with the TBM and describes it as “Antenna loose connection.” The official communication groups B1561 with TBM DTCs B1560 and B1562. It also states that customers may experience a “Uconnect Box Requires Service” message and that TBM sleep mode may not work, causing battery drain in some cases. The supplied evidence does not establish a specific failed part, repair procedure, or whether every B1561 event causes battery drain.

3. What system is affected?

Telematics Box Module (TBM), including its antenna connection and TBM sleep-mode operation.

4. How serious is this code?

Not yet established by verified evidence. The source reports possible battery drain in some cases when TBM sleep mode does not work.

5. Symptoms you may notice

  • “Uconnect Box Requires Service” pop-up may be displayed.
  • B1561 may be stored as a TBM DTC.
  • TBM sleep mode may not work.
  • Battery drain may occur in some cases.

6. Possible causes

  • Verified evidence identifies B1561 as “Antenna loose connection” for the TBM.
  • Any additional underlying cause is 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 diagnosis by an authorized Jeep service facility if “Uconnect Box Requires Service” is displayed or B1561 is present.
  • Monitor for an unexpected low 12-volt battery condition, because the verified communication notes battery drain in some cases.
  • Do not attempt high-voltage or telematics-module repair based on this information.

10. Step-by-step troubleshooting

  1. A service facility can confirm whether B1561 is present in the TBM and assess the reported antenna loose-connection condition.
  2. The supplied evidence does not establish owner-level diagnostic steps or a specific repair procedure.

11. When to contact service

Contact an authorized Jeep service facility for diagnosis, particularly if the Uconnect service message is displayed or there is suspected battery drain.

12. What the service center may check

  • Confirm TBM DTC B1561.
  • Assess the antenna loose-connection condition identified by the manufacturer communication.
  • Assess whether TBM sleep-mode operation is functioning, given the reported potential for battery drain in some cases.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 11023183, published September 9, 2025, reports that customers may experience “Uconnect Box Requires Service” pop-ups; TBM DTCs B1560, B1561, and B1562 described as antenna loose connection; and TBM sleep-mode issues that may cause battery drain in some cases.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official source: NHTSA Manufacturer Communication 11023183, “OTHERDOC_149,” published September 9, 2025: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2025-2026.zip#nhtsa_id=11023183

19. Frequently asked questions

What does Jeep code B1561 mean?

Verified evidence identifies B1561 as a TBM DTC described as “Antenna loose connection.”

Can B1561 cause a Uconnect service message?

Yes. The verified manufacturer communication states that customers may see “Uconnect Box Requires Service” pop-ups.

Can B1561 drain the battery?

The communication states that TBM sleep mode may not work, causing battery drain in some cases. It does not establish that every B1561 occurrence will drain the battery.

Which vehicles are covered by the supplied applicability data?

Jeep Grand Cherokee model years 2024–2026 and Jeep Wagoneer model years 2024–2026 in the United States.

20. Sources & verification

Verified
Jeep B1561: Antenna loose connection ]. - TBM sleep mode not working… | EV Diagnostics