Hyundai Elantra (CN7): Forward Collision–Avoidance Assist (FCA) (sensor fusion) / Function malfunction and limitations

Function malfunction

When Forward Collision-Avoidance Assist is not working properly, the ‘Check Forward Safety system(s)’ warning message will appear, and the and warning lights will illuminate on the cluster. We recommend that the function be inspected by an authorized HYUNDAI dealer.

    Basic function Function warning and control The basic function for Forward Collision- Avoidance Assist is to help warn and control the vehicle depending on the collision level: ‘Collision Warning’, ‘Emergency Braking’ and ‘Stopping vehicle and ending brake control’.

    When the front windshield where the front view camera is located, front radar cover, bumper or sensor is covered with foreign material, such as snow or rain, it can reduce the detecting performance and temporarily limit or disable Forward Collision-Avoidance Assist.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Smart Cruise Control (SCC) Switch

    Schematic diagrams Circuit DiagramTRIP / SCC / LFA Repair procedures Inspection1.Check for resistance between terminals in each switch position (LH).[LH : Audio + Hands free] Switch Resistance (±5%) SEEK Up430 ΩSEEK Down1.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Troubleshooting

    Trouble Symptom ChartsTrouble Symptom 1Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed se

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