Hyundai Elantra: Anti-lock Brake System (ABS) / 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 after 2
seconds or when the accelerator pedal is
depressed.
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 button 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.
The Vehicle Stability Management (VSM)
is a function of the Electronic Stability
Control (ESC) system. It helps ensure the
vehicle stays stable when accelerating
or braking suddenly on wet, slippery and
rough roads where traction over the four
tires can suddenly become uneven...
WARNING
Whenever leaving the vehicle or
parking, always come to a complete
stop and continue to depress the brake
pedal. Move the shift button into P
(Park) position, then apply the parking
brake, and place the ignition switch in
the LOCK/OFF position...
Other information:
Repair procedures
InspectionPower Door Lock Switch Inspection1.Check for continuity between the terminals. If there is an abnormality, replace the switch.Removal
•
Be careful not to scratch the door trim and other parts...
Components and components location
Components1. Front wheel speed sensor2. Front wheel speed sensor connector
Repair procedures
Removal1.Turn ignition switch OFF and disconnect the negative (-) battery cable.2.Loosen the wheel nuts slightly...