P0457 on Kia vehicles An evaporative leak the system has attributed to a loose or missing fuel cap
P0457 is named on 8 Kia model years (2016–2017): 11 manufacturer filings and 0 owner reports in NHTSA’s files, across Forte, Optima, Soul, Cadenza, K900 and 2 more.
Which Kia model years name P0457
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2016 Kia Forte | Engine | 2 | — |
| 2016 Kia Optima | Engine | 2 | — |
| 2016 Kia Soul | Engine | 2 | — |
| 2017 Kia Sportage | Engine | 1 | — |
| 2016 Kia Cadenza | Engine | 1 | — |
| 2016 Kia K900 | Engine | 1 | — |
| 2016 Kia Rio | Engine | 1 | — |
| 2016 Kia Sportage | Engine | 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.
Kia filings that name P0457
Source: NHTSA manufacturer communicationsBulletins and campaigns Kia filed with NHTSA whose summary names P0457. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PS469 Service bulletin2017-01-18 · Engine And Engine Cooling — Exhaust System — Emission Control
- PITSTOP: MANUAL EVAPORATIVE EMISSIONS TEST FOR HARD TO FIND/SMALL LEAKS - If the malfunction indicator lamp (MIL) is illuminated with DTC(s) P0442, P0455, P0456, or P0457 (Evaporative Emissions System-Leak detected) and the evaporative (EVAP) leak self-test resulted in NTF, a manual EVAP test is recommended.
What P0457 means
Source: SAE J2012 / OBD-IIAn evaporative leak the system has attributed to a loose or missing fuel cap.
A stored code names the test that failed, never the part that caused it. The record above is what Kia 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 P0457 a known problem on Kia vehicles?
It is a documented one: NHTSA's files hold 11 manufacturer filings and 0 owner reports naming P0457 on 8 Kia model years (2016–2017). 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 Kia models does P0457 appear on most?
2016 Forte (2 documents), 2016 Optima (2 documents), 2016 Soul (2 documents).
Does P0457 on a Kia 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.