Hyundai Sonata: Automatic emergency braking (AEB) / System malfunction

WARNING

AEB front radar sensor
In order for the AEB system to operate properly, always make sure the radar sensor lens cover is clean and free of dirt, snow, and debris. Dirt, snow, or foreign substances on the lens may adversel ...

Limitations of the system
The Automatic Emergency Braking (AEB) system is designed to help monitor the vehicle ahead or a pedestrian in the roadway through radar signals and camera recognition to warn the driver that a colli ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Troubleshooting SymptomSuspect areaEngine will not start or stuggle to startVapor hose damaged or disconnectedEngine stuggle to startMalfunction of the Purge Control Solenoid ValveRough idle or engine stallsVapor hose damaged or disconnectedMalfunction of the PCV valveRough idleMalfunction of t ...

Hyundai Sonata LF 2014-2019 Service Manual: Relay Box (Engine Compartment) Repair procedures
Inspection 1. Disconnect the negative (-) battery terminal. 2. Pull out the relay from the engine compartment relay block. Power Relay (Type A) Check for continuity between the terminals. 1) Start relay 2) Deicer relay 3) Head lamp (high) relay 4) Blower relay 5) Powe ...

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