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Volvo eCall service required

eCall service required

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceVolvo service evaluation is appropriate because the official Volvo technical journal specifies a service procedure when “eCall service required” occurs with TCAM-U210993.
Confidence90%

Quick answer

For the listed 2022–2023 U.S. Volvo models, an “eCall service required” warning is addressed in Volvo Technical Journal 35808 when it appears with DTC TCAM-U210993 pointing to the Backup Battery Unit (BUB).

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 eCall service required mean?

For the listed 2022–2023 U.S. Volvo models, an “eCall service required” warning is addressed in Volvo Technical Journal 35808 when it appears with DTC TCAM-U210993 pointing to the Backup Battery Unit (BUB).

2. Technical explanation

Volvo’s published Technical Journal 35808 describes a condition in which “eCall service required” is shown in both the Driver Information Module (DIM) and Center Console Display (CCD), together with diagnostic trouble code TCAM-U210993 indicating the Backup Battery Unit (BUB). The TCAM is the Telematic Connectivity Antenna Module. The supplied evidence does not establish that every instance of this warning has the same cause, only that Volvo provides this diagnostic path when the specified DTC accompanies the message.

3. What system is affected?

The verified evidence identifies the Telematic Connectivity Antenna Module (TCAM) and its Backup Battery Unit (BUB).

4. How serious is this code?

Unknown. The diagnostic record does not assign a severity.

5. Symptoms you may notice

  • “eCall service required” warning message in the Driver Information Module (DIM).
  • “eCall service required” warning message in the Center Console Display (CCD).
  • TCAM-U210993 may be present and point to the Backup Battery Unit (BUB).

6. Possible causes

  • When accompanied by DTC TCAM-U210993, Volvo Technical Journal 35808 identifies the Backup Battery Unit (BUB) as the component indicated by the DTC.
  • Other 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

  • Record whether the message appears in the DIM, CCD, or both.
  • Have the vehicle evaluated by Volvo service, particularly if TCAM-U210993 is stored.
  • Do not attempt high-voltage or telematics-module repairs yourself based on this information.

10. Step-by-step troubleshooting

  1. A qualified service provider can check for DTC TCAM-U210993 in the TCAM.
  2. If the warning and TCAM-U210993 occur together, Volvo Technical Journal 35808 directs technicians to its Service procedure for the BUB-related condition.
  3. Further diagnostic steps are not provided in the supplied verified evidence.

11. When to contact service

Volvo service evaluation is appropriate because the official Volvo technical journal specifies a service procedure when “eCall service required” occurs with TCAM-U210993.

12. What the service center may check

  • Check whether DTC TCAM-U210993 is present in the Telematic Connectivity Antenna Module.
  • Confirm whether the warning is displayed in the DIM and CCD.
  • Follow the applicable Service procedure in Volvo Technical Journal 35808 when the message and specified DTC occur together.

13. Possible repair or resolution

  • The supplied evidence confirms that Volvo Technical Journal 35808 contains a service procedure for the BUB-related condition associated with TCAM-U210993.
  • The exact repair or final resolution is not yet established by the supplied verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Volvo Technical Journal 35808 / NHTSA Manufacturer Communication 10231935, published January 4, 2023. It addresses “eCall service required” shown with TCAM-U210993 pointing to the BUB and notes added vehicle types.
  • Volvo Technical Journal 35808.1.3 / NHTSA Manufacturer Communication 10213888, published May 6, 2022. It addresses the same warning/DTC combination and notes an alternative BUB charging method.

16. Recall information

  • No recall information was supplied or established by verified evidence.

17. Official manufacturer information

Applicable verified evidence includes NHTSA-posted Volvo manufacturer communications 10231935 (TJ35808) and 10213888 (TJ35808.1.3). Applicability supplied: U.S. Volvo S60, S90, V60, XC40, XC60, and XC90 model years 2022–2023, with duplicate 2022 entries for S90, XC40, XC60, and XC90 in the source data.

19. Frequently asked questions

What does “eCall service required” mean in this verified Volvo evidence?

It is a warning message. Volvo Technical Journal 35808 specifically addresses it when it is displayed in the DIM and CCD together with DTC TCAM-U210993 pointing to the BUB.

Is the Backup Battery Unit confirmed as the cause?

The journal states that TCAM-U210993 points to the BUB in the specified warning-and-DTC scenario. A cause for every occurrence of the warning is not yet established by verified evidence.

Can I continue driving or charging?

Not yet established by verified evidence.

Which vehicles are included in the supplied applicability data?

U.S. Volvo S60, S90, V60, XC40, XC60, and XC90 model years 2022–2023, subject to the listed applicability records.

20. Sources & verification

Verified
Volvo eCall service required: eCall service required | EV Diagnostics