P0700 on Subaru vehicles The transmission control module is asking for the warning light — the real code is stored on its side
P0700 is named on 5 Subaru model years (2016–2026): 1 manufacturer filing and 4 owner reports in NHTSA’s files, across Ascent, Crosstrek, Forester.
Which Subaru model years name P0700
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2026 Subaru Crosstrek | Engine | — | 1 |
| 2024 Subaru Crosstrek | Power Train | 1 | — |
| 2021 Subaru Crosstrek | Electrical System | — | 1 |
| 2020 Subaru Ascent | Power Train | — | 1 |
| 2016 Subaru Forester | Power Train | — | 1 |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
What Subaru owners said
Source: NHTSA complaint databaseOwners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.
The dealer diagnosed transmission trouble codes P0700 and P0752 and determined that an internal valve body solenoid had failed
Subaru filings that name P0700
Source: NHTSA manufacturer communicationsBulletins and campaigns Subaru filed with NHTSA whose summary names P0700. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 06-93-25 Service bulletin2025-02-10 · Power Train
- "This bulletin announces availability of reprograming files for the Engine Control Module (ECM) developed to address the following Diagnostic Trouble Codes (DTC): • P0890: TCM Power Relay Sense Circuit Low • P0700: Transmission Control System (MIL Resquest)"
What P0700 means
Source: SAE J2012 / OBD-IIThe transmission control module is asking for the warning light — the real code is stored on its side.
A stored code names the test that failed, never the part that caused it. The record above is what Subaru and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs P0700 a known problem on Subaru vehicles?
It is a documented one: NHTSA's files hold 1 manufacturer filing and 4 owner reports naming P0700 on 5 Subaru model years (2016–2026). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Subaru models does P0700 appear on most?
2020 Ascent (1 document), 2026 Crosstrek (1 document), 2024 Crosstrek (1 document).
Does P0700 on a Subaru mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.