P0A80 on Kia
Replace Hybrid Battery Pack
P0A80 on Kia vehicles indicates replace hybrid battery pack. Au7o has documented this code across 1 Kia model — most commonly on Soul. This code appears on hybrid and some electric vehicles and is a direct instruction that the high-voltage hybrid/traction battery pack needs to be replaced because one or more cells or modules have degraded beyond the system's acceptable limits. The battery management system continuously monitors each module's voltage, temperature, and capacity, and when the cells fall too far out of balance or lose too much capacity, it sets this code. You may notice reduced fuel economy, less electric assist, a flashing dashboard battery warning, or the vehicle entering a reduced-power mode. While the code names battery replacement, the true cause is often just one or a few weak modules rather than the whole pack.
Common Causes of P0A80
- •Aged or degraded hybrid battery cells/modules losing capacity
- •One or more weak modules causing cell imbalance
- •Internal cell resistance increase from heat and age
- •Poor battery pack cooling (clogged fan/filter, weak coolant pump)
- •Corroded or loose high-voltage bus bar connections
- •Faulty battery module temperature or voltage sensor
- •Failed battery management/ECU module misreading cells (less common)
P0A80 on Kia by Model
Kia Soul(2 issues)
- First-Generation Soul EV SK Innovation Pouch-Cell Capacity Collapse Below 70% SOH2015-2017
The 27 kWh SK Innovation pouch cells used in the first-generation Soul EV degrade far faster than the industry norm, and — critically — the loss is not linear. Owners tracking state of health with OBD tools report long plateaus followed by cliff-like drops; one documented case lost 15 percentage points of SOH in three months over roughly 4,000 miles. The practical result is a car that quietly stops being usable for its original commute: indicated range falls well below the 93-mile EPA figure, the guess-o-meter becomes erratic, and DC fast-charge sessions taper early. Because Kia's capacity warranty triggers at below 70% SOH, the shape of this degradation curve matters — cars sitting at 72-75% can drop under the threshold quickly, and owners near the end of the warranty term should be measuring, not guessing.
- Recall 23V218000 (Kia SC267): E400 High-Voltage Battery Cell Short Circuit Fire Risk (Soul EV)2015-2019
Kia recalled approximately 2,689 Soul EVs because an internal short circuit can develop between the anode and cathode inside cells of the E400 high-voltage battery pack, and that short can start a fire while the vehicle is being driven. Kia attributes it to abnormally excessive precipitate forming inside the cells; three thermal incidents were reported. The population is unusual and easy to miss: it covers 2018-2019 Soul EVs built 7/3/2017 through 9/28/2018 with the factory E400 pack, AND 2015-2017 Soul EVs that had their original pack replaced under warranty with an E400 unit — so a first-generation car that already got a 'good' battery can be the affected one. Warning signs owners see before anything dramatic are charging that never completes, range that fluctuates or drops, and the EV warning lamp.
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View P0A80 across all makes →Frequently Asked Questions
What does P0A80 mean on Kia?▼
P0A80 stands for "Replace Hybrid Battery Pack." This code appears on hybrid and some electric vehicles and is a direct instruction that the high-voltage hybrid/traction battery pack needs to be replaced because one or more cells or modules have degraded beyond the system's acceptable limits. The battery management system continuously monitors each module's voltage, temperature, and capacity, and when the cells fall too far out of balance or lose too much capacity, it sets this code. You may notice reduced fuel economy, less electric assist, a flashing dashboard battery warning, or the vehicle entering a reduced-power mode. While the code names battery replacement, the true cause is often just one or a few weak modules rather than the whole pack. On Kia specifically, this code is documented across 1 model.
What causes P0A80 on Kia vehicles?▼
Common causes on Kia: Aged or degraded hybrid battery cells/modules losing capacity, One or more weak modules causing cell imbalance, Internal cell resistance increase from heat and age, Poor battery pack cooling (clogged fan/filter, weak coolant pump), Corroded or loose high-voltage bus bar connections. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0A80 on a Kia?▼
Repair costs vary widely depending on the root cause and specific Kia model.
Which Kia models have P0A80 documented?▼
Au7o has documented P0A80 on 1 Kia model: Soul.