Hyundai Sonata: Remote keyless entry - Features of your vehicleHyundai Sonata: Remote keyless entry

Battery replacement
A smart key battery should last for several years, but if the smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use your smart key or replace ...

Remote keyless entry system operations
Lock (1) All doors are locked if the lock button is pressed. If all doors, trunk and hood are closed, the hazard warning lights will blink once to indicate that all doors are locked. Also, i ...

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Electronic stability control (ESC)
The Electronic Stability control (ESC) system is designed to stabilize the vehicle during cornering maneuvers. ESC checks where you are steering and where the vehicle is actually going. ESC ap ...

Smart key unit. Repair procedures
Inspection Smart Key Unit - Refer to the BE group - inspection / self diagnosis with GDS. Smart Key Switch - Refer to the BE group - inspecti ...

Troubleshooting
Trouble Symptom Charts Trouble Symptom 1 Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies gr ...