Verified EV diagnostic knowledge page

Tesla BMS_u031

Battery fuse requires replacement soon OK to drive - Schedule service

Common search variants: BMSu031 · BMS-u031 · BMS u031 · Search ignores case and common separators.

DriveYes. The verified Tesla alert explicitly states “OK to drive.”
ChargeNot yet established by verified evidence.
ServiceSchedule Tesla service as soon as possible. The verified documentation specifically recommends service to replace the high-voltage battery fuse.
Confidence95%

Quick answer

BMS_u031 means a fuse in the high-voltage battery is very near the end of its lifetime and requires replacement. Tesla’s owner documentation states that it is OK to drive and recommends scheduling service as soon as possible for high-voltage battery fuse replacement.

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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Relevant videos play here without leaving this diagnostic page.

#Tesla #BMS_u031 #BMS_u032 #BMS_w176 #BMS_w179 #BMS_w180 Easy fix Battery fuse replacement alertDigital EV Doctor (Tesla alert clear)
#Tesla Battery Fuse requires replacement soon alert fix and reset #BMS_u031Digital EV Doctor (Tesla alert clear)
#tesla #BMS_u031 #BMS_u032 #BMS_w176 #BMS_w179 #BMS_w180Digital EV Doctor (Tesla alert clear)

Videos are supporting material and never override OEM or regulator evidence.

1. What does BMS_u031 mean?

BMS_u031 means a fuse in the high-voltage battery is very near the end of its lifetime and requires replacement. Tesla’s owner documentation states that it is OK to drive and recommends scheduling service as soon as possible for high-voltage battery fuse replacement.

2. Technical explanation

This is a Tesla OEM alert concerning a fuse within the vehicle’s high-voltage battery. Verified Tesla owner-documentation communications filed with NHTSA state that the fuse is very near the end of its lifetime and requires replacement.

3. What system is affected?

High-voltage battery fuse.

4. How serious is this code?

The database severity is listed as unknown. However, verified Tesla documentation recommends scheduling service as soon as possible.

5. Symptoms you may notice

  • The BMS_u031 alert: “Battery fuse requires replacement soon OK to drive - Schedule service.”

6. Possible causes

  • A fuse in the high-voltage battery is very near the end of its lifetime and requires replacement.

7. Can I still drive the vehicle?

Yes. The verified Tesla alert explicitly states “OK to drive.”

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Schedule Tesla service as soon as possible to have the high-voltage battery fuse replaced.
  • Do not attempt to replace or access the high-voltage battery fuse yourself.

10. Step-by-step troubleshooting

  1. Review the active BMS_u031 alert in the vehicle.
  2. Arrange service for professional high-voltage battery fuse replacement. No owner-performed diagnostic or repair procedure is established by the verified evidence.

11. When to contact service

Schedule Tesla service as soon as possible. The verified documentation specifically recommends service to replace the high-voltage battery fuse.

12. What the service center may check

  • Confirm the BMS_u031 alert and assess the high-voltage battery fuse using appropriate professional service procedures.
  • Replace the high-voltage battery fuse as indicated by Tesla’s owner documentation.

13. Possible repair or resolution

  • Replacement of the high-voltage battery fuse by service personnel.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 10253660, published March 26, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253660-9999.pdf
  • NHTSA Manufacturer Communication 10253658, published March 26, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253658-9999.pdf
  • NHTSA Manufacturer Communication 10252957, published February 13, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10252957-9999.pdf
  • NHTSA Manufacturer Communication 10252958, published February 13, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10252958-9999.pdf
  • NHTSA Manufacturer Communication 10251060, published January 28, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10251060-9999.pdf
  • NHTSA Manufacturer Communication 10247842, published November 22, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10247842-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified NHTSA-hosted Tesla owner-documentation communications describe BMS_u031 as a high-voltage battery fuse nearing the end of its lifetime. Verified applicability is Tesla Model 3 (2017–2023), Model S (2012–2023), and Model X (2016–2023) in the United States. Source: https://static.nhtsa.gov/odi/tsbs/2023/MC-10247842-9999.pdf

19. Frequently asked questions

What does Tesla BMS_u031 mean?

It means a fuse in the vehicle’s high-voltage battery is very near the end of its lifetime and requires replacement.

Can I drive with BMS_u031?

Yes. The verified Tesla alert states “OK to drive.”

What should I do when BMS_u031 appears?

Tesla documentation recommends scheduling service as soon as possible to have the high-voltage battery fuse replaced.

Can I charge with BMS_u031?

Not yet established by verified evidence.

Which vehicles are verified as applicable?

Tesla Model 3 model years 2017–2023, Model S model years 2012–2023, and Model X model years 2016–2023, all for the US region.

20. Sources & verification

Verified
Show all 18 verified sources
Tesla BMS_u031: Battery fuse requires replacement soon OK to drive -… | EV Diagnostics