Hyundai Palisade Quiz
Brake System

Description and Operation

In this manual: Brake System
General Information — 10Engine Mechanical System — 56Engine Electrical System — 28Emission Control System — 21Engine Control System/Fuel System — 42Automatic Transmission System (A8LF1) — 33All-Wheel Drive (AWD) System — 16Drive Shaft and Axle — 19Suspension System — 28Steering — 17Restraints — 20Brake System — 39Body (Interior and Exterior) — 142Body Electrical System — 171Heating, Ventilation, and Air Conditioning — 47Advanced Driver Assistance System (ADAS) — 44
7steps
~42min
2/5difficulty
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Description

The Electronic Parking Brake (EPB) differs from existing parking systems that operated with a brake pedal or lever type. The EPB system sends a signal to the EPB control unit when the driver presses the EPB switch. The EPB control unit operates the EPB actuator, which consists of motor-reducer units. The braking force is generated when the motor pulls the cable connected to the brake system. The EPB control unit is one of the components of the EPB system. It receives signals from various system sensors, performs self-diagnosis, and controls the EPB system with logic. Main function
  1. Static Braking Mode Operation and cancellation when the vehicle is stopped
    1. Operating conditions: Pull the EPB switch regardless of the brake pedal condition (Pull).
      • Vehicle speed <= 3 km/h
    2. Cancellation condition: Press the EPB switch with the ignition switch ON and the brake pedal depressed (Push).
  2. Dynamic Brake Function Dynamic Brake Function (DBF): DBF is a braking function under driving conditions. It can control the EPB system and release it depending on the vehicle driving condition. This function is used when foreign material gets between the brake pedal or brake hydraulic line and cannot be operated.
    1. Operating conditions: It operates only when the vehicle speed exceeds 3 km/h and the EPB switch is pressed.
    2. Cancellation condition: Cancelled when the EPB switch is pulled and held.
    3. Principle of Operation
      • ESP system in normal state: EPB requests are sent. Brake pressure is controlled by the ESP system.
      • ESP system in abnormal state: EPB controls the parking brake to reduce vehicle speed.
    4. Characteristics: The Anti-lock Brake System (ABS) operates when the wheels lock. The parking lamp on the instrument panel illuminates during emergency braking.
  3. Stroke Reset Function This is a reconnection function for normal EPB operation after an emergency release. Operation
    1. After an emergency release, when the EPB is first applied, the hook engages with the grip in the EPB with the parking brake operating at maximum cable tension.
    2. The reconnection function can be performed using GDS.
    3. After 5 reconnection attempts, the EPB does not operate in the current ignition cycle. Normally, the EPB does not reconnect.
  4. Bedding-in Mode You must perform "Bedding-in" to optimize the initial operating performance of the EPB after replacing the parking brake pads and rear brake discs. Bedding-in Procedure
    1. Turn the ignition on and start the engine.
    2. Depress the brake pedal 2 times within 10 seconds and hold it depressed after the last application.
    3. Press the EPB switch 4 times, then release it 3 times within 10 seconds.
    4. Pads must be bedded-in by six dynamic braking procedures from 30-35 km/h to a complete vehicle stop. (If the vehicle speed exceeds 50 km/h in bedding-in mode, it is released automatically.)
    5. A cooling period for the pads is required after each braking cycle to prevent damage to the friction lining.
      • Cooling can be performed by driving a distance of 500 m after each braking cycle without applying the EPB, or by stopping the vehicle for 1 minute after each braking.
  5. AVH (Automatic Vehicle Hold) AVH maintains the vehicle stopped condition using the hydraulic brake.
    1. Operating Conditions
      • Engine running
      • Turn AVH on.
      • Driver door closed
      • Driver seat belt fastened
      • The shift lever is not in the P range.
      • Vehicle stopped condition is maintained when the brake pedal is depressed.
    2. The AVH function maintains the vehicle stopped condition for a maximum of 5 minutes. The VDC valve maintains the stopped condition by holding the oil passage when the brake pedal is depressed.
    3. Total AVH operating time: 30 minutes maximum
    4. Automatic Release Function AVH mode is cancelled when the driver attempts to start the vehicle by depressing the accelerator pedal in the D/S/R range.
    5. Automatic Conversion from AVH to EPB AVH automatically converts to EPB operation if any of the conditions below are met. [Normal conversion cases]
      • When the driver door is opened and the driver seat belt is unfastened at the same time
      • When the hood is opened with the shift lever in D or S
      • When the trunk is opened with the shift lever in P
      • When AVH operating time exceeds 5 minutes
      • Stopped on a 25-degree slope
      [Abnormal conversion cases]
      • When detailed vehicle movement is detected.
      • When a malfunction of the ESP hydraulic system is detected.
    Hyundai Palisade. Description and operation
  6. EPB warning lamp
    1. The EPB warning lamp illuminates for 3 seconds after the ignition switch is turned ON. If the EPB system operates normally, the EPB warning lamp turns off.
    2. If the EPB system does not operate properly, the EPB warning lamp illuminates.
    3. The EPB warning lamp illuminates in diagnostic mode.
  7. AUTO HOLD lamp / AUTO HOLD function lamp
    1. AUTO HOLD ON
      A. The brake system operates automatically when the vehicle speed is "0", when parking or waiting at a red light, or during braking (AUTO HOLD function indicator: green).
      B. The brake system is automatically released when the accelerator pedal is depressed. (AUTO HOLD indicator: white)
    2. AUTO HOLD switch OFF: The AUTO HOLD function does not operate.
Indicator Lamp

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