Hyundai Sonata: Braking System / 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 seconds and releases the brake when the accelerator pedal is depressed or after 2 seconds.
WARNING
Always be ready to depress the accelerator pedal when starting off on a incline. The HAC activates only for approximately 2 seconds.
NOTICE
- The HAC does not operate when the shift lever is in P (Park) or N (Neutral)
- The HAC activates even though the ESC (Electronic Stability Control) is off but does not activate when the ESC has malfunctioned.
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 ...
Good Braking Practices
WARNING
Whenever leaving the vehicle or parking, always come to a complete stop and
continue to depress the brake pedal. Move the shift lever into the P (Park) position,
then apply the parking brake ...
Other information:
Hyundai Sonata LF 2014-2019 Owners Manual: Using the Tire Mobility Kit
1. Detach the speed restriction label (0) from the sealant bottle (1), and place
it in a highly visible place inside the vehicle such as on the steering wheel to
remind the driver not to drive too fast.
2. Screw the connection hose (9) onto the connector of the sealant bottle.
3. Ensure that the ...
Hyundai Sonata LF 2014-2019 Service Manual: A/C Pressure Transducer Repair procedures
Inspection
1.
Measure the pressure of high pressure line by measuring voltage output between terminal "1" and "2".
2.
Inspect the voltage value whether it is sufficient to be regular value or not.
Vdd * (0.001758 * Pressure(Psia) + 0.074126
3.
If the measured voltage value is not wi ...
