Hyundai Sonata: Electronic Stability Control (ESC) / ESC OFF usage
When Driving
The ESC OFF mode should only be used briefly to help free the vehicle if stuck in snow or mud by temporarily stopping operation of the ESC to maintain wheel torque.
To turn ESC off while driving, press the ESC OFF button while driving on a flat road surface.
NOTICE
To prevent damage to the transmission:
- Do not allow wheel(s) of one axle to spin excessively while the ESC, ABS, and brake warning lights are displayed. The repairs would not be covered by the vehicle warranty. Reduce engine power and do not spin the wheel(s) excessively while these lights are displayed.
- When operating the vehicle on a dynamometer, ensure the ESC is turned off (ESC OFF light illuminated).
Information
Turning the ESC off does not affect ABS or standard brake system operation.
Indicator lights
When the ignition switch is placed to the ON position, the ESC indicator light
illuminates, then goes off if the ESC system is operating normally.
The ESC indicator light blinks whenever the ESC is ...
Hill-Start Assist Control (HAC)
The Hill-Start Assist Control (HAC) helps prevent the vehicle from rolling backwards
when starting a vehicle from a stop on a hill. The system operates the brakes automatically
for approximately 2 s ...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Front Wheel Speed Sensor Components and Components Location
Components
1. Front wheel speed sensor connector2. Front wheel speed sensor
...
Hyundai Sonata LF 2014-2019 Service Manual: Crankshaft Position Sensor (CKPS) Repair procedures
Inspection
1.
Check signal waveform of CKPS and CMPS using a GDS.
Specification: Refer to “Waveform”
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the crankshaft position sensor connector (A) and remove the sensor (B) af ...
