2018 Hyundai Ioniq Hybrid brake fluid

ENGINE COMPARTMENT - HYBRID VEHICLE
1-8
Your vehicle at a glance
OAE076001
■Gasoline Engine (Kappa 1.6 GDI)
1. Engine oil filler cap ............................7-24
2. Engine oil dipstick ............................7-23
3. Engine coolant cap ..........................7-26
4. Engine coolant reservoir ..................7-25
5. Inverter coolant reservoir ................7-25
6. Brake fluid reservoir ..........................7-29
7. Air cleaner ........................................7-31
8. Windshield washer fluid reservoir ....7-30
9. Fuse box ..........................................7-55
The actual engine compartment in the vehicle may differ from the illustration.

1-15
Your vehicle at a glance
1
ENGINE COMPARTMENT - PLUG-IN HYBRID VEHICLE
OAEPH076001
■Gasoline Engine (Kappa 1.6 GDI)
1. Engine oil filler cap ............................7-24
2. Engine oil dipstick ............................7-23
3. Engine coolant cap ..........................7-26
4. Engine coolant reservoir ..................7-25
5. Inverter coolant reservoir ................7-25
6. Brake fluid reservoir ..........................7-29
7. Air cleaner ........................................7-31
8. Windshield washer fluid reservoir ....7-30
9. Fuse box ..........................................7-55
The actual engine compartment in the vehicle may differ from the illustration.

3-55
Convenient features of your vehicle
3
Seat Belt Warning Light
This warning light informs the driver
that the seat belt is not fastened.
For more information, refer to
“Seat Belts” in chapter 2.
Parking Brake & Brake
Fluid Warning Light
This warning light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3
seconds
- It remains on if the parking brake
is applied.
• When the parking brake is applied.
• When the brake fluid level in the
reservoir is low.
- If the warning light illuminates
with the parking brake released, it
indicates the brake fluid level in
the reservoir is low.
• When the regenerative brake does
not operate.
If the brake fluid level in the reser-
voir is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. With the engine stopped, check the
brake fluid level immediately and
add fluid as required (For more
information, refer to “Brake
Fluid” in chapter 7). After adding
brake fluid, check all brake compo-
nents for fluid leaks. If a brake fluid
leak is found, or if the warning light
remains on, or if the brakes do not
operate properly, do not drive the
vehicle. We recommend that you
have the vehicle inspected by an
authorized HYUNDAI dealer.
Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking systems. This
means you still have braking on two
wheels even if one of the dual sys-
tems should fail.
With only one of the dual systems
working, more than normal pedal
travel and greater pedal pressure is
required to stop the vehicle.
(red color)

3-56
Convenient features of your vehicle
Also, the vehicle will not stop in as
short a distance with only a portion
of the brake system working.
If the brakes fail while you are driv-
ing, shift to a lower gear for addition-
al engine braking and stop the vehi-
cle as soon as it is safe to do so.
Regenerative Brake
Warning Light
This warning light illuminates :
When the regenerative brake does
not operate and the brake does not
perform well. This causes the Brake
Warning light (red) and Regenerative
Brake Warning Light (yellow) to illu-
minate simultaneously.
In this case, drive safely and we rec-
ommend that you have your vehicle
inspected by an authorized HYUNDAI
dealer.
The operation of the brake pedal may
be more difficult than normal and the
braking distance can increase.
Anti-lock Brake System
(ABS) Warning Light
This warning light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3
seconds and then goes off.
• When there is a malfunction with
the ABS (The normal braking sys-
tem will still be operational without
the assistance of the anti-lock
brake system).
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.
Parking Brake & Brake Fluid
Warning Light
Driving the vehicle with a warn-
ing light ON is dangerous. If the
Parking Brake & Brake Fluid
Warning Light illuminates with
the parking brake released, it
indicates that the brake fluid
level is low.
In this case, we recommend
that you have the vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING

3-57
Convenient features of your vehicle
3
Electronic Brake Force
Distribution (EBD)
System Warning Light
These two warning lights illuminate
at the same time while driving:
• When the ABS and regular brake
system may not work normally.
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.Information - Electronic
Brake Force Distribution
(EBD) System Warning Light
When the ABS Warning Light is on or
both ABS and Parking Brake & Brake
Fluid Warning Lights are on, the
speedometer, odometer, or tripmeter
may not work. Also, the EPS Warning
Light may illuminate and the steering
effort may increase or decrease.
In this case, we recommend you have
the vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
Electric Power Steering
(EPS) Warning Light
This warning light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3
seconds and then goes off.
• When there is a malfunction with
the EPS.
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.
i
Electronic Brake Force
Distribution (EBD) System
Warning Light
When both ABS and Parking
Brake & Brake Fluid Warning
Lights are on, the brake system
will not work normally and you
may experience an unexpected
and dangerous situation during
sudden braking.
(Continued)
WARNING
(Continued)
In this case, avoid high speed
driving and abrupt braking.
We recommend you have the
vehicle inspected by an author-
ized HYUNDAI dealer as soon
as possible.

5-112
Maintenance when towing a
trailer
Your vehicle will need service more
often when you regularly pull a trail-
er. Important items to pay particular
attention to include engine oil, auto-
matic transmission fluid, axle lubri-
cant and cooling system fluid. Brake
condition is another important item to
frequently check. If you’re trailering,
it’s a good idea to review these items
before you start your trip. Don’t forget
to also maintain your trailer and
hitch. Follow the maintenance sched-
ule that accompanied your trailer and
check it periodically. Preferably, con-
duct the check at the start of each
day’s driving. Most importantly, all
hitch nuts and bolts should be tight.To prevent vehicle damage:
• Due to higher load during trailer
usage, overheating might occur
on hot days or during uphill driv-
ing. If the coolant gauge indi-
cates over-heating, switch off
the air conditioner and stop the
vehicle in a safe area to cool
down the engine.
• Do not switch off the engine
while the coolant gauge indi-
cates over-heating.
(Keep the engine idle to cool
down the engine)
• When towing check automatic
transmission fluid more fre-
quently.
• If your vehicle is not equipped
with an air conditioner, you
should install a condenser fan
to improve engine performance
when towing a trailer.
NOTICE
Driving your vehicle

7
Maintenance
7
Maintenance
Engine compartment .............................................7-3
Maintenance services ...........................................7-5
Owner's responsibility ......................................................7-5
Owner maintenance precautions ..................................7-5
Owner maintenance ...............................................7-6
How to Disconnect the (-) Cable
for Regular Maintenance ................................................7-6
Owner maintenance schedule ........................................7-7
Scheduled maintenance services.........................7-8
Normal maintenance schedule
- For Europe (except Russia) ........................................7-9
Maintenance under severe usage conditions
- For Europe (except Russia) ......................................7-13
Normal maintenance schedule
- Except Europe (but include Russia) ........................7-15
Maintenance under severe usage conditions
- Except Europe (but include Russia) ........................7-19
Explanation of scheduled maintenance items .7-21
Engine oil ..............................................................7-23
Checking the engine oil level .......................................7-23
Checking the engine oil and filter ..............................7-24
Engine coolant/inverter coolant .......................7-25
Checking the coolant level ...........................................7-25
Changing coolant.............................................................7-28
Hybrid starter & generator (HSG) belt.............7-29
Checking the hybrid starter &
generator (HSG) belt ......................................................7-29
Brake fluid ............................................................7-29
Checking the brake fluid level .....................................7-29
Washer fluid .........................................................7-30
Checking the washer fluid level ..................................7-30
Parking brake .......................................................7-31
Checking the parking brake .........................................7-31
Air cleaner ............................................................7-31
Filter replacement ...........................................................7-31
Climate control air filter .....................................7-33
Filter inspection ...............................................................7-33
Wiper blades .........................................................7-35
Blade inspection ..............................................................7-35
Blade replacement ..........................................................7-35
Battery (12 volt, Plug-in hybrid vehicle) .........7-38
For best battery service................................................7-39
Battery capacity label ....................................................7-40
Battery recharging .........................................................7-40
Reset features .................................................................7-41
7

7-3
7
Maintenance
ENGINE COMPARTMENT
1. Engine oil filler cap
2. Engine oil dipstick
3. Engine coolant cap
4. Engine coolant reservoir
5. Inverter coolant reservoir
6. Brake fluid reservoir
7. Air cleaner
8. Windshield washer fluid reservoir
9. Fuse box
OAE076001
The actual engine compartment in the vehicle may differ from the illustration.
■Hybrid vehicle