Kia KDS 2.0 Intermittent Auto VIN Detection and Vehicle Diagnosis Failure

1. Symptoms

- Auto VIN does not function in KDS 2.0, and the vehicle selection screen continues to be displayed. All communication attempts fail even when the VIN is searched manually and the vehicle is selected.
- A 2011 Sportage that could not be diagnosed using KDS 2.0 reportedly communicated normally when tested at the same time using KDS (3rd generation).

- On a 2022 Porter II, KDS 2.0 continuously fails to retrieve the Auto VIN. When the vehicle is selected manually and communication is attempted,
all communication functions fail, including Smart Diagnosis, Fault Diagnosis, and Sensor Data. Auto VIN is detected intermittently, but communication remains unavailable.
- On a 2025 Staria HEV, Auto VIN is unavailable and communication with all systems fails, although there are no faults with the vehicle.
- The same symptoms remain after force-stopping the app, clearing the storage and cache, and restarting the app.

Cause

 - The issue was confirmed to be a temporary error. No further issue occurred after retrying.