Hyundai Azera: Hill-start assist control (HAC)
Fifth generation HG (2011–2026) / Hyundai Azera 2011-2026 Owners Manual / Driving your vehicle / Brake system / Hill-start assist control (HAC)
The main intent is to prevent the vehicle from rolling backwards while driving uphill on an inclined surface. HAC holds the braking pressure built up by the driver when the vehicle is stopped for 2 seconds after releasing the brake pedal. During the pressure-hold period, the driver has enough time to depress the accelerator pedal to drive off.
The braking pressure is reduced as soon as the system detects the driver’s intention to drive off.
WARNING - Rolling backward
Drivers should pay close attention when activating the HAC. The vehicle may roll backward causing an accident due to insufficient brake hold pressure, causing injury or death.
- The HAC does not operate when the transaxle 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.
Vehicle stability management (VSM)
This system provides further enhancements to vehicle stability and steering responses
when a vehicle is driven on a slippery road or a vehicle detects changes in coefficient
of friction between righ ...
Good braking practices
WARNING
Whenever leaving the vehicle or parking, always set the parking brake
as far as possible and fully engage the vehicle's transaxle into the P (Park)
position. Vehicles not fully eng ...
See also:
Rear Wheel Speed Sensor Repair procedures
Removal
1.
Remove the rear wheel and tire.
Tightening torque:
88.3 ~ 107.9 N.m (9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft)
2.
Remove the rear wheel speed sensor mounting bolt (A).
Tightenin ...
Underdrive Brake Control Solenoid Valve(UD/B_VFS) Specifications
Specifications
Direct control VFS[UD/B]
? Control type : Normal low type
Control Pressure [kpa (kgf/cm?, psi)] 500.14 ~ 9.81(5.1 ~ 0.1, 72.54 ~ 1.42)Current value(mA)50~850 Internal resis ...
Passenger Airbag (PAB) Module Repair procedures
Removal
1.
Disconnect the battery negative cable and wait for at least three minutes before beginning work.
2.
Remove the glove box housing.
(Refer to Body - "Glove box housing")
3.
Remo ...
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