Hyundai Elantra (CN7): Driver assistance system / Parking Safety

System malfunction When Highway Driving Assist or Highway Lane Change function is not working properly, the ‘Check Highway Driving Assist (HDA) system’ warning message will appear, and the warning light will illuminate on the cluster.

Rear View Monitor will show the area behind the vehicle to assist you when parking or backing up. Detecting sensor [1] : Rear view camera Refer to the picture above for the detailed location of the detecting sensor.

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Repair procedures

Replacement1.Disconnect the negative (-) battery terminal.2.Remove the crash pad lower panel.(Refer to Body - "Crash Pad")3.Remove the steering column upper & Lower shroud.4.Remove the ignition switch and disconnecting the Key Warning / immobilizer connector.

Hyundai Elantra (CN7) 2021-2025 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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