Optima Hybrid P1B25/P1B77 and WTY029 fuse coverage. See the manufacturer document, vehicle conditions, exclusions and questions for a qualified shop before assuming a repair.
This is a research summary of a manufacturer communication, not a diagnosis for your car, a DIY repair procedure or confirmation of warranty or recall eligibility. No qualified technician has approved a repair for your individual vehicle here.
This historical communication is conditional. The current revision, VIN/build eligibility, measured diagnosis and any warranty or recall decision are not established here. Ask the manufacturer or a qualified shop to check the complete current document.
Read the Kia original: Optima Hybrid high-voltage fuse warranty-extension diagnostic path · Check open recalls by VIN at NHTSA Source date: 2023-01; research checked: 2026-11-01.
What prompted this manufacturer document
- The document provides a diagnostic/coverage path for a particular HV fuse condition, not a blanket HV battery warranty.
Which vehicle conditions must be checked
Each row below retains its own conditions. Do not combine engines, years or models across rows to create new applications. A listed model is not proof that a particular VIN is affected.
- Kia Optima Hybrid · 2013, 2014, 2015, 2016 · TF hybrid; Built 2012-09-27 through 2015-07-22
- Production dates and current VIN coverage must be checked.
- The known non-genuine-fuse inspection branch is not limited to vehicles currently showing a DTC.
Codes recorded in this document
A root listed only as an appearance has no separately verified meaning here. Preserve every suffix and module name; a shared root does not transfer a repair branch to another vehicle.
What an owner can record safely
- Retain previous hybrid repair invoices and record READY/propulsion symptoms.
Bulletin eligibility questions
The source uses these gates before choosing a professional diagnostic branch. A missing answer means applicability is unknown; passing one gate never authorizes a repair.
- Optima Hybrid production window
What the source does not prove
- Do not treat an online HV fuse as an owner-installable quick fix.
- A code or message alone does not establish a failed part, a safe-to-drive decision or an approved repair for this VIN.
- A service bulletin is not automatically a recall or free warranty repair. Confirm current eligibility directly.
Questions for the repair shop
- Does WTY029 apply to this VIN, and is replacement limited to the fuse or a larger assembly?
- Does a later revision or a current recall change the source's original advice?
- What measurement or inspection confirms the cause, and how will the repair be verified?
Read the original record
The linked communication may be revised after the research date. Compare its document number, exact vehicle table, diagnostic preconditions and exclusions with a qualified technician. This page paraphrases selected facts and does not reproduce the manufacturer procedure.
Sources and scope
- Kia — Optima Hybrid high-voltage fuse warranty-extension diagnostic path (ELE273 / WTY029) Document: 2023-01 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.