P2820
2 owner reports and 5 manufacturer filings across 5 model years from Scion, Toyota.
Where P2820 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2016 Scion iM | Electrical System | 2 | — | Battery → |
| 2017 Toyota Corolla | Power Train | 2 | — | |
| 2020 Toyota Corolla | Power Train | — | 1 | |
| 2018 Toyota Corolla | Power Train | — | 1 | |
| 2016 Toyota Corolla | Power Train | 1 | — |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
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What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
An OBD2 scanner was used to diagnose the vehicle, and DTC: P0741, P075B, P1604, P2757, P2820(X4) were retrieved, which were related to the torque converter
5 manufacturer filings name P2820. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P2820.
- S-SB-0002-18_Rev Service bulletin2018-05-11 · Engine And Engine Cooling
- TSB: REVISION NOTICE May 11, 2018 Rev1: * The Warranty Information and Parts Information sections have been updated. Any previous printed versions of this bulletin should be discarded. Some 2016 model year iM vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P2820 present, indicating a Pressure Control Solenoid (shift solenoid valve SLP) Performance condition. The Engin
- S-SB-0002-18 Service bulletin2018-01-24 · Electrical System
- TSB: Some 2016 model year iM vehicles may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P2820 present, indicating a Pressure Control Solenoid (shift solenoid valve SLP) Performance condition. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been updated to prevent this condition. Follow the Repair Procedure below to address this condition.
- T-SB-0289-17 Service bulletin2017-10-05 · Power Train
- TSB: Some 2014 - 2017 model year Corolla and 2017 model year iM vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P2820 present, indicating a Pressure Control Solenoid (shift solenoid valve SLP) Performance condition. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been updated to prevent this condition.
What P2820 means
Source: SAE J2012 / OBD-IIP2820 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P2820
Source: NHTSA files and the OBD-II standardCan I keep driving with P2820 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.