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Tesla DIRER_a251

Gearbox fluid service recommended Schedule Service

Common search variants: DIRERa251 · DIRER-a251 · DIRER a251 · Search ignores case and common separators.

DriveYes. Tesla documentation states that the vehicle is OK to drive with this alert present. However, it also warns that continuing to drive for an extended period with the alert present may result in damage; the supplied evidence does not specify the damage.
ChargeNot yet established by verified evidence.
ServiceSchedule Tesla service. Tesla documentation recommends service for this alert.
Confidence95%

Quick answer

DIRER_a251 means the vehicle detected a condition requiring gearbox fluid inspection. Tesla documentation recommends scheduling service. The vehicle is stated to be OK to drive with the alert present, but prolonged driving with the alert may result in damage not established further by the supplied evidence.

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 DIRER_a251 mean?

DIRER_a251 means the vehicle detected a condition requiring gearbox fluid inspection. Tesla documentation recommends scheduling service. The vehicle is stated to be OK to drive with the alert present, but prolonged driving with the alert may result in damage not established further by the supplied evidence.

2. Technical explanation

Tesla groups DIRER_a251 with DIF_a251, DIR_a251, and DIREL_a251 under the alert text “Gearbox fluid service recommended — Schedule Service.” Official Tesla owner-documentation communications filed with NHTSA state that the vehicle has detected a condition requiring gearbox fluid inspection.

3. What system is affected?

Gearbox fluid / gearbox fluid inspection.

4. How serious is this code?

Service is recommended. The supplied evidence does not assign a formal severity level.

5. Symptoms you may notice

  • Displayed alert: “Gearbox fluid service recommended — Schedule Service.”

6. Possible causes

  • A vehicle-detected condition requiring gearbox fluid inspection. Specific underlying causes are not yet established by verified evidence.

7. Can I still drive the vehicle?

Yes. Tesla documentation states that the vehicle is OK to drive with this alert present. However, it also warns that continuing to drive for an extended period with the alert present may result in damage; the supplied evidence does not specify the damage.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Schedule Tesla service for gearbox fluid inspection.
  • Avoid prolonged driving with the alert present, consistent with Tesla’s warning.
  • Do not attempt gearbox-fluid or high-voltage-related repair procedures yourself.

10. Step-by-step troubleshooting

  1. Verify the displayed alert text and arrange service. Further owner troubleshooting is not yet established by verified evidence.

11. When to contact service

Schedule Tesla service. Tesla documentation recommends service for this alert.

12. What the service center may check

  • Inspect gearbox fluid, as indicated by the official alert description. Further diagnostic checks are not yet established by verified evidence.

13. Possible repair or resolution

  • Gearbox fluid service or repair resolution is not yet established by verified evidence; the verified documentation specifies gearbox fluid inspection and recommends scheduling service.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 10253661 (published 2024-03-26): https://static.nhtsa.gov/odi/tsbs/2024/MC-10253661-9999.pdf
  • NHTSA Manufacturer Communication 10253659 (published 2024-03-26): https://static.nhtsa.gov/odi/tsbs/2024/MC-10253659-9999.pdf
  • NHTSA Manufacturer Communication 10247843 (published 2023-11-22): https://static.nhtsa.gov/odi/tsbs/2023/MC-10247843-9999.pdf

16. Recall information

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

17. Official manufacturer information

Verified NHTSA-filed Tesla owner documentation describes DIRER_a251 as “Gearbox fluid service recommended — Schedule Service,” states that gearbox fluid inspection is required, recommends scheduling service, and states that the vehicle is OK to drive with the alert present. Verified applicability: US Tesla Model S (2012–2024), Model X (2016–2024), and Model Y (2020–2023), including overlapping source applicability ranges.

19. Frequently asked questions

What does Tesla alert DIRER_a251 mean?

It means the vehicle detected a condition requiring gearbox fluid inspection.

Can I drive with DIRER_a251?

Yes. Tesla documentation states the vehicle is OK to drive with this alert present, but warns against continuing to drive for an extended period because damage may result.

Should I schedule service?

Yes. Tesla documentation recommends scheduling service.

Can I charge with this alert?

Not yet established by verified evidence.

20. Sources & verification

Verified
Show all 21 verified sources
Tesla DIRER_a251: Gearbox fluid service recommended Schedule Service | EV Diagnostics