Subaru's published position is short and clear: "The Subaru New Vehicle Warranty period on high-voltage batteries for Subaru Hybrid and Subaru Electric vehicles is 8 Years/160,000 Kilometres", whichever comes first. The vehicle itself is covered for 5 years with unlimited kilometres, so the battery gets three more years than everything around it.
What Subaru does not publish is a capacity percentage. The clause covers the battery for eight years; it does not say what loss of capacity counts as a defect.
The terms
| Applies to | Years | Kilometres | Capacity floor | Transfers |
|---|---|---|---|---|
| High-voltage battery — Forester Hybrid, Crosstrek Hybrid, Solterra and all Subaru hybrids and EVs | 8 | 160,000 | Not published | Yes, within Australia |
The vehicle warranty is 5 years, unlimited kilometres for private use, or 5 years and 150,000 km for hire, taxi, rideshare, rental, driving-school, delivery or courier use.
Two kinds of Subaru hybrid
Subaru sold a mild e-Boxer hybrid from 2020 — a small battery assisting a petrol engine — and later a full Strong Hybrid. They are different batteries doing different jobs under the same eight-year cover. On a used Forester or Crosstrek, know which one you are looking at before you price it.
What "no percentage" means in practice
On a Toyota, capacity loss is explicitly excluded. On a Kia, it is guaranteed to 70%. Subaru's terms say neither, which leaves the question to Subaru's judgement if it ever arises. A dated, independent measurement is the evidence a buyer or owner would hold in that conversation.
What to check on a used Subaru hybrid
- In-service date and odometer against 8 years and 160,000 km
- Which hybrid system — e-Boxer or Strong Hybrid
- Any commercial use, which reintroduces the 150,000 km vehicle cap
- Measured State of Health and cell-group voltage spread, since no floor is published
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Terms verified 15 September 2026 from Subaru Australia's new vehicle warranty page. Manufacturer terms change, and the terms that apply to any given car are those in force when it was first sold. Always confirm with the manufacturer for the specific vehicle.