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Subaru P0890

Shut Relay Diagnosis (Low)” ......................................................................................12/11 CVT Repla

DriveUnknown. The supplied verified evidence does not establish whether it is safe to drive with P0890.
ChargeUnknown. The supplied verified evidence does not establish whether it is safe to charge with P0890.
ServiceContact a qualified Subaru service facility for diagnosis. The verified material identifies the code but does not provide sufficient repair guidance in the supplied excerpts.
Confidence95%

Quick answer

P0890 is identified in verified Subaru material as “A/T Self-Shut Relay Diagnosis (Low).” The supplied evidence does not establish a vehicle-specific diagnosis, driving safety, charging safety, symptoms, causes, or repair procedure.

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 P0890 mean?

P0890 is identified in verified Subaru material as “A/T Self-Shut Relay Diagnosis (Low).” The supplied evidence does not establish a vehicle-specific diagnosis, driving safety, charging safety, symptoms, causes, or repair procedure.

2. Technical explanation

The verified NHTSA-hosted Subaru manufacturer communications list DTC P0890 as “A/T Self-Shut Relay Diagnosis (Low).” The provided source excerpts are article-locator entries and do not provide diagnostic thresholds, affected components, test steps, or a corrective action for this code.

3. What system is affected?

Automatic-transmission/self-shut relay diagnosis is indicated by the verified code description. A more specific system assignment is not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied verified evidence does not assign a severity level.

5. Symptoms you may notice

Not yet established by verified evidence.

6. Possible causes

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. The supplied verified evidence does not establish whether it is safe to drive with P0890.

8. Can I charge the vehicle?

Unknown. The supplied verified evidence does not establish whether it is safe to charge with P0890.

9. What you can safely do

  • Record the exact diagnostic trouble code and any accompanying codes.
  • Arrange diagnosis by a qualified Subaru service facility; the supplied evidence does not provide a safe owner-level diagnostic or repair procedure.

10. Step-by-step troubleshooting

  1. Confirm the stored code with an appropriate diagnostic scan tool.
  2. Review accompanying diagnostic trouble codes and vehicle information during professional diagnosis.
  3. No additional diagnostic test sequence is established by the supplied verified evidence.

11. When to contact service

Contact a qualified Subaru service facility for diagnosis. The verified material identifies the code but does not provide sufficient repair guidance in the supplied excerpts.

12. What the service center may check

  • Confirm P0890 and review any accompanying codes.
  • Use applicable Subaru service information to diagnose the reported A/T self-shut relay low condition. Specific test steps are not included in the supplied verified evidence.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication PDF 11036794, published August 5, 2026, includes an article-locator entry for DTC P0890 “A/T Self-Shut Relay Diagnosis (Low).”
  • NHTSA Manufacturer Communication PDF 11024859, published October 28, 2025, includes an article-locator entry for DTC P0890 “A/T Self-Shut Relay Diagnosis (Low).”
  • NHTSA Manufacturer Communication PDF 11024863, published October 28, 2025, includes an article-locator entry for DTC P0890 “A/T Self-Shut Relay Diagnosis (Low).”
  • The supplied excerpts do not establish bulletin applicability, diagnostic instructions, or a repair for an individual vehicle.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official sources are NHTSA-hosted Subaru manufacturer communications: https://static.nhtsa.gov/odi/tsbs/2026/MC-11036794-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2025/MC-11024859-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2025/MC-11024863-0001.pdf. Supplied applicability records list Subaru Crosstrek (2019–2026 and 2019–2025), Solterra (2019–2026 and 2019–2025), Trailseeker (2019–2026), and Uncharted (2019–2026) in the US; duplicate and overlapping entries are retained as supplied. Specific applicability of the listed communications is not established by the source excerpts.

19. Frequently asked questions

What does Subaru DTC P0890 mean?

Verified Subaru material identifies P0890 as “A/T Self-Shut Relay Diagnosis (Low).”

Can I drive with P0890?

Not yet established by verified evidence.

Can I charge with P0890?

Not yet established by verified evidence.

Does a listed Subaru communication provide a repair procedure?

Not from the supplied evidence. The excerpts only show article-locator entries for P0890 and do not include repair instructions.

20. Sources & verification

ReferenceVerified
Subaru P0890: Shut Relay Diagnosis (Low)”… | EV Diagnostics