P0305 on Jeep vehicles Cylinder 5 is misfiring
P0305 is named on 7 Jeep model years (2016–2022): 13 manufacturer filings and 2 owner reports in NHTSA’s files, across Grand Cherokee, Gladiator, Wrangler.
Which Jeep model years name P0305
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2021 Jeep Grand Cherokee | Electrical System | 4 | — |
| 2020 Jeep Grand Cherokee | Engine | 2 | 1 |
| 2022 Jeep Grand Cherokee | Engine | 2 | — |
| 2021 Jeep Gladiator | Engine | 2 | — |
| 2021 Jeep Wrangler | Electrical System | 2 | — |
| 2018 Jeep Wrangler | Engine | — | 1 |
| 2016 Jeep Wrangler | Electrical 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.
What Jeep 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.
Utility 4D Altitude 4WD 3.6L V6 2020 Jeep Grand Cherokee My 2020 Jeep Grand Cherokee with 3.6L Pentastar V6 engine check engine light came on at 115,000 miles with a P0305 code
Jeep filings that name P0305
Source: NHTSA manufacturer communicationsBulletins and campaigns Jeep filed with NHTSA whose summary names P0305. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 09-013-20 Service bulletin2020-12-05 · Electrical System
- 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cyli
- 09-013-20 REV. A Service bulletin2020-12-12 · Electrical System
- 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cyli
- 18-050-26 Service bulletin2026-04-18 · Engine
- Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0300 - Multiple Cylinder Misfire - In Active or Stored status set during cold start catalyst heating. ● P0301 - Cylinder 1 Misfire - In Active or Stored status set during c
- 18-049-26 Service bulletin2026-04-18 · Engine
- Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0300 - Multiple Cylinder Misfire - In Active or Stored status set during cold start catalyst heating. ● P0301 - Cylinder 1 Misfire - In Active or Stored status set during
- 18-021-16 REV. B Service bulletin2016-07-20 · Electrical System
- Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · **P0305 - Cylinder 5 Misfire.** · P030
What P0305 means
Source: SAE J2012 / OBD-IICylinder 5 is misfiring.
A stored code names the test that failed, never the part that caused it. The record above is what Jeep 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 P0305 a known problem on Jeep vehicles?
It is a documented one: NHTSA's files hold 13 manufacturer filings and 2 owner reports naming P0305 on 7 Jeep 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 Jeep models does P0305 appear on most?
2021 Grand Cherokee (4 documents), 2020 Grand Cherokee (3 documents), 2021 Gladiator (2 documents).
Does P0305 on a Jeep 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.