P0301 on Toyota vehicles Cylinder 1 is misfiring
P0301 is named on 7 Toyota model years (2016–2019): 7 manufacturer filings and 2 owner reports in NHTSA’s files, across Prius v, Corolla, Highlander, Prius, Tacoma.
Which Toyota model years name P0301
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2016 Toyota Prius v | Hybrid Propulsion System | 3 | — |
| 2019 Toyota Highlander | Engine | 1 | — |
| 2018 Toyota Highlander | Engine | 1 | — |
| 2017 Toyota Highlander | Engine | 1 | — |
| 2017 Toyota Tacoma | Engine | — | 1 |
| 2016 Toyota Corolla | Engine | — | 1 |
| 2016 Toyota Prius | Hybrid Propulsion System | 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.
Toyota filings that name P0301
Source: NHTSA manufacturer communicationsBulletins and campaigns Toyota filed with NHTSA whose summary names P0301. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- T-SB-0116-15 REV Service bulletin2016-08-11 · Hybrid Propulsion System
- TSB: REVISION NOTICE AUGUST 11, 2016 REV1: APPLICABILITY HAS BEEN UPDATED TO INCLUDE 2016 MODEL YEAR PRIUS V VEHICLES. ANY PREVIOUS PRINTED VERSIONS OF THIS BULLETIN SHOULD BE DISCARDED. SOME 2010 2015 MODEL YEAR PRIUS (2ZR-FXE EQUIPPED) VEHICLES, 2012 2015 MODEL YEAR PRIUS PHV VEHICLES, AND 2012 2016 PRIUS V (2ZR-FXE EQUIPPED) VEHICLES MAY EXHIBIT A RUNS ROUGH AND/OR MIL ON CONDITIO
- T-SB-0116-15 Rev Service bulletin2016-08-11 · Engine And Engine Cooling — Exhaust System — Emission Control — Gas Recirculation Valve (Egr Valve)
- TSB: REVISION NOTICE August 11, 2016 Rev1: Applicability has been updated to include 2016 model year Prius V vehicles. Any previous printed versions of this bulletin should be discarded. Some 2010 - 2015 model year Prius (2ZR-FXE equipped) vehicles, 2012 - 2015 model year Prius PHV vehicles, and 2012 - 2016 Prius V (2ZR-FXE equipped) vehicles may exhibit a "runs rough" and/or MIL "ON" conditio
- T-SB-0147-16 Service bulletin2016-10-14 · Back Over Prevention
- TSB: Some 2013 ? 2015 Prius PHV, Prius and 2013 ? 2016 Prius V vehicles may exhibit a vibration due to rough idle and/or tapping noise from the HV transaxle at cold start. The check engine light may also illuminate with (DTC) P0300, P0301, P0302, P0303, P0304 (Random/Multiple Cylinder Misfire Detected). The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been modifie
- T-SB-0148-19 Service bulletin2019-10-22 · Engine And Engine Cooling
- TSB: Some 2017 ? 2019 model year Highlander HV vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ? P0301 ? Cylinder 1 Misfire Detected ? P0302 ? Cylinder 2 Misfire Detected ? P0303 ? Cylinder 3 Misfire Detected ? P0304 ? Cylinder 4 Misfire Detected ? P0305 ? Cylinder 5 Misfire Detected ? P0306 ? Cylinder 6 Misfire Detected Follow the Repair
What P0301 means
Source: SAE J2012 / OBD-IICylinder 1 is misfiring.
A stored code names the test that failed, never the part that caused it. The record above is what Toyota 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 P0301 a known problem on Toyota vehicles?
It is a documented one: NHTSA's files hold 7 manufacturer filings and 2 owner reports naming P0301 on 7 Toyota model years (2016–2019). 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 Toyota models does P0301 appear on most?
2016 Prius v (3 documents), 2016 Corolla (1 document), 2019 Highlander (1 document).
Does P0301 on a Toyota 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.