P0308 on Buick vehicles Cylinder 8 is misfiring
P0308 is named on 36 Buick model years (2016–2022): 204 manufacturer filings and 0 owner reports in NHTSA’s files, across Cascada, Enclave, Encore, Envision, LaCrosse and 2 more.
Which Buick model years name P0308
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2018 Buick Cascada | Engine | 7 | — |
| 2018 Buick Enclave | Engine | 7 | — |
| 2018 Buick Encore | Engine | 7 | — |
| 2018 Buick Envision | Engine | 7 | — |
| 2018 Buick LaCrosse | Engine | 7 | — |
| 2018 Buick Regal | Engine | 7 | — |
| 2017 Buick Cascada | Engine | 7 | — |
| 2017 Buick Enclave | Engine | 7 | — |
| 2017 Buick Encore | Engine | 7 | — |
| 2017 Buick Envision | Engine | 7 | — |
| 2017 Buick LaCrosse | Engine | 7 | — |
| 2017 Buick Regal | Engine | 7 | — |
| 2017 Buick Verano | Engine | 7 | — |
| 2016 Buick Cascada | Engine | 7 | — |
| 2016 Buick Enclave | Engine | 7 | — |
| 2016 Buick Encore | Engine | 7 | — |
| 2016 Buick Envision | Engine | 7 | — |
| 2016 Buick LaCrosse | Engine | 7 | — |
| 2016 Buick Regal | Engine | 7 | — |
| 2016 Buick Verano | Engine | 7 | — |
| 2022 Buick Enclave | Engine | 4 | — |
| 2022 Buick Encore | Engine | 4 | — |
| 2022 Buick Envision | Engine | 4 | — |
| 2021 Buick Enclave | Engine | 4 | — |
| 2021 Buick Encore | Engine | 4 | — |
| 2021 Buick Envision | Engine | 4 | — |
| 2020 Buick Enclave | Engine | 4 | — |
| 2020 Buick Encore | Engine | 4 | — |
| 2020 Buick Envision | Engine | 4 | — |
| 2020 Buick Regal | Engine | 4 | — |
| 2019 Buick Cascada | Engine | 4 | — |
| 2019 Buick Enclave | Engine | 4 | — |
| 2019 Buick Encore | Engine | 4 | — |
| 2019 Buick Envision | Engine | 4 | — |
| 2019 Buick LaCrosse | Engine | 4 | — |
| 2019 Buick Regal | Engine | 4 | — |
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.
Buick filings that name P0308
Source: NHTSA manufacturer communicationsBulletins and campaigns Buick filed with NHTSA whose summary names P0308. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIP5628 Service bulletin2019-02-18 · Engine And Engine Cooling
- This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
- PIP5628B Service bulletin2020-05-21 · Engine
- This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
- PIP5628C Service bulletin2020-10-08 · Engine And Engine Cooling
- This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
- PIP5628E Service bulletin2021-12-14 · Engine And Engine Cooling
- This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
- PIP5628E Service bulletin2023-02-10 · Equipment — Electrical — Accessory Generator — Outlets/Receptacle
- This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
- PIP5628F Service bulletin2023-04-24 · Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm)
- This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
What P0308 means
Source: SAE J2012 / OBD-IICylinder 8 is misfiring.
A stored code names the test that failed, never the part that caused it. The record above is what Buick 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 P0308 a known problem on Buick vehicles?
It is a documented one: NHTSA's files hold 204 manufacturer filings and 0 owner reports naming P0308 on 36 Buick model years (2016–2022). 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 Buick models does P0308 appear on most?
2018 Cascada (7 documents), 2017 Cascada (7 documents), 2016 Cascada (7 documents).
Does P0308 on a Buick 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.