C0425moderate severityChassis
Pre-Collision System Sensor Fusion Error
on 2015 Kia Forte 1.8L I4 · FWD
What this code means
The pre-collision system detects a mismatch between radar and camera object detection data.
Symptoms
- PCS temporarily disabled
- Intermittent PCS warnings
- False collision alerts or no alerts
- System unreliable in certain conditions
Common causes
- Radar or camera misalignment
- Sensor calibration drift
- One sensor partially blocked
- Environmental interference
Diagnostic steps
- Perform radar alignment check
- Calibrate forward camera
- Clean all sensor surfaces
- Check for software updates
- Test in controlled conditions
Repair notes
Calibrate all PCS sensors. Perform both static and dynamic calibration as required.
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