B1102 on Kia
Airbag/Restraint System Battery Voltage Low
B1102 on Kia vehicles indicates airbag/restraint system battery voltage low. Au7o has documented this code across 1 Kia model — most commonly on Rio. B1102 is a manufacturer-specific body code that, on many Asian-make vehicles (e.g., Hyundai/Kia), indicates the airbag (SRS) control module detected battery/supply voltage below the required range to operate the restraint system correctly; on some GM applications it relates to an audio output circuit instead. In the SRS context, the module cannot guarantee proper airbag operation when voltage is too low, so the airbag warning light typically comes on. Because meaning differs by maker, confirm against your vehicle's service data. Typical repair costs on Kia range from $120 to $900, depending on the specific model and root cause.
Common Causes of B1102
- •Weak or failing battery
- •Faulty alternator or low charging-system output
- •Corroded or loose battery/ground connections
- •Voltage drop in the SRS module power supply circuit
- •Faulty airbag (SRS) control module
- •Parasitic drain or recent deep discharge
B1102 on Kia by Model
Kia Rio(1 issue)
- 12V Battery Drain and Intermittent Dead Battery from Telematics/Infotainment Sleep Issues2021-2023
Some Rio owners have experienced repeated dead batteries after the car sits overnight or for several days, despite the battery testing good initially. Reports point to parasitic draw from modules that do not consistently enter sleep mode, including infotainment, telematics, or body control functions. The result is a no-start condition, especially in colder weather or on vehicles driven short distances.
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View B1102 across all makes →Frequently Asked Questions
What does B1102 mean on Kia?▼
B1102 stands for "Airbag/Restraint System Battery Voltage Low." B1102 is a manufacturer-specific body code that, on many Asian-make vehicles (e.g., Hyundai/Kia), indicates the airbag (SRS) control module detected battery/supply voltage below the required range to operate the restraint system correctly; on some GM applications it relates to an audio output circuit instead. In the SRS context, the module cannot guarantee proper airbag operation when voltage is too low, so the airbag warning light typically comes on. Because meaning differs by maker, confirm against your vehicle's service data. On Kia specifically, this code is documented across 1 model.
What causes B1102 on Kia vehicles?▼
Common causes on Kia: Weak or failing battery, Faulty alternator or low charging-system output, Corroded or loose battery/ground connections, Voltage drop in the SRS module power supply circuit, Faulty airbag (SRS) control module. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix B1102 on a Kia?▼
Repair costs on Kia range from $120 to $900, depending on the specific model and root cause.
Which Kia models have B1102 documented?▼
Au7o has documented B1102 on 1 Kia model: Rio.