| Trouble Symptom Charts |

| Component part | Function |
| Cruise Control Switch | Input the set speed and distance to the SCC ECU. |
| Instrument Cluster | Display various information inputted from SCC. |
| Smart Cruise Control Unit | Recognize and track the vehicle ahead. Calculate the target speed and distance Request the acceleration and retardation to ESP |
| VDC (HECU) | Automatic braking and request the engine torque control to the engine (ECM) Request the EPB torque control to the Electronic Parking Brake (EPB) Request the stop lamp indicator ON |
| Engine (ECM) | Control the engine torque |
| Electronic Parking Brake (EPB) | Control the EPB torque |
| Stop lamp | Stop lamp indicator ON |
General Safety Information and Caution
Description and OperationHyundai Sonata LF 2014-2019 Service Manual: Battery Sensor Description and Operation
Description
Vehicles have many control units that use more electricity.
These units control their own system based on information from diverse
sensors. It is important to have a stable power supply as there diverse
sensors giving a variety of information. Battery sensor is mounted on
ba ...
Hyundai Sonata LF 2014-2019 Owners Manual: Interior Light Bulb Replacement
Map lamp and Room lamp
If the LED lamp does not operate, have the vehicle checked by an authorized HYUNDAI
dealer.
Map lamp, Room lamp, Vanity mirror lamp and Luggage room lamp
1. Using a flat-head screwdriver, gently pry the lens from the interior light
housing.
2. Remove the bulb by pulling it ...