Hyundai Ioniq: Driving your vehicle / Braking System

Hyundai Ioniq (AE) 2017-2024 Owner's Manual / Driving your vehicle / Braking System

Power Brakes

Your vehicle has power-assisted brakes that adjust automatically through normal usage.

If the vehicle is not in the ready (Hyundai Ioniq. Braking System) mode or the vehicle is turned off while driving, the power assist for the brakes will not work.You can still stop your vehicle by applying greater force to the brake pedal than typical. The stopping distance, however, will be longer than with power brakes.

When the vehicle is not in the ready (Hyundai Ioniq. Braking System) mode, the reserve brake power is partially depleted each time the brake pedal is applied. Do not pump the brake pedal when the power assist has been interrupted.

Pump the brake pedal only when necessary to maintain steering control on slippery surfaces.


Take the following precautions:

  • Do not drive with your foot resting on the brake pedal. This will create abnormal high brake temperatures, excessive brake lining and pad wear, and increased stopping distances.
  • When descending down a long or steep hill, move the gear shift lever to Manual Shift Mode and manually downshift to a lower gear in order to control your speed without using the brake pedal excessively. Applying the brakes continuously will cause the brakes to overheat and could result in a temporary loss of braking performance.
  • Wet brakes may impair the vehicle's ability to safely slow down; the vehicle may also pull to one side when the brakes are applied. Applying the brakes lightly will indicate whether they have been affected in this way. Always test your brakes in this fashion after driving through deep water. To dry the brakes, lightly tap the brake pedal to heat up the brakes while maintaining a safe forward speed until brake performance returns to normal. Avoid driving at high speeds until the brakes function correctly.


Do not depress the brake pedal continuously without the "Hyundai Ioniq. Braking System" indicator ON. The battery may be discharged.

  • Some noise and vibration may occur during braking. This is normal.
  • In below cases, some electric brake pump noise and motor vibration may occur temporarily. This is normal operation.
    - When the pedal is depressed very quickly
    - When the pedal is depressed multiple times in short intervals
    - When the ABS function is activated during braking

Coasting Guide (Plug-in hybrid vehicle)

The coasting guide function informs the driver when to take the foot off from the accelerator by anticipating a decelerating event* based on the analysis of driving routes and road conditions of the navigation...

Disc Brake Wear Indicator

When your brake pads are worn and new pads are required, you will hear a high pitched warning sound from your front or rear brakes. You may hear this sound come and go or it may occur whenever you depress the brake pedal...

Other information:

Hyundai Ioniq (AE) 2017-2024 Service Manual: Water Temperature Control Assembly. Components and components location

Components1. Water temperature control (WTC) outlet fitting2. Water temperature control (WTC) housing3. Water temperature control (WTC) gasket4. Water temperature control (WTC) outlet fitting gasket5. Water temperature sensor6. Return & degassing pipe & hose7...

Hyundai Ioniq (AE) 2017-2024 Service Manual: Dual Clutch Assembly. Repair procedures

Removal1.Remove the dual clutch transmission from the vehicle.(Refer to Dual Clutch Transmission System - "Dual Clutch Transmission")2.Remove the hybrid motor assembly from the dual clutch transmission assembly.(Refer to Hybrid Motor System - "Hybrid Motor Assembly")3...


Seatback pocket

Hyundai Ioniq. Seatback pocket

The seatback pocket is provided on the back of the front passenger's seatback.


To prevent the Occupant Classification System from malfunctioning:

read more

Copyright © 2024