Hyundai Equus: Hill-start assist control (HAC)
Second generation VI (2009–2025) / Hyundai Equus 2009-2025 Owners Manual / Driving your vehicle / Brake system / Hill-start assist control (HAC)
A vehicle has the tendency to roll back on a steep hill when the driver begins to accelerate after a stop. The Hill-start Assist Control (HAC) prevents the vehicle from rolling back by operating the brakes automatically for about 2 seconds. The brakes are released when the accelerator pedal is depressed or after about 2 seconds.
WARNING
The HAC is activated only for about 2 seconds, so always depress the accelerator pedal to begin accelerating after a stop.
✽ NOTICE
- The HAC does not operate when the transmission shift lever is in the P (Park) or N (Neutral) position.
- The HAC activates even though the ESC is off but it does not activate when the ESC has malfunctioned.
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 ...
Good braking practices
WARNING
Whenever leaving vehicle or parking, always set the parking brake as
far as possible and fully engage the vehicle's transmission into the park position.
Vehicles not fully engage ...
See also:
Underdrive Brake Control Solenoid Valve(UD/B_VFS) Repair procedures
Inspection
1.
Turn ignition switch OFF.
2.
Disconnect the E Module connector.
3.
Measure resistance between sensor signal terminal and sensor ground terminal.
4.
Check that the res ...
Specifications
Specifications
ItemsSpecificationsRated voltageDC 12VOperating temperature range-22 ~ +176°F (-30°C ~ +80°C)Rated loadWasher switch0.2A (Relay load)
...
Components and Components Location
Component Location Index
Engine Room
1. Receiver-drier2. Condenser3. Ambient Temperature Sensor4. Compressor5. Discharge Hose6. Suction & Liquid Tube Assembly7. Service Port (Low Pressure)8. ...
Categories
Hyundai Equus Manuals
