2015 Hyundai Sonata brake fluid

1-6
Your vehicle at a glance
ENGINE COMPARTMENT
OLF014006R
■Petrol Engine (Theta II 2.4L GDI)
The actual engine room in the vehicle may differ from the illustration.
1. Engine coolant reservoir....................7-23
2. Radiator cap ......................................7-22
3. Brake fluid reservoir ..........................7-25
4. Air cleaner ........................................7-28
5. Engine oil dipstick..............................7-20
6. Engine oil filler cap ............................7-21
7. Windscreen washer fluid reservoir ....7-27
8. Fuse box ............................................7-49
9. Battery ..............................................7-33

3-82
Convenient features of your vehicle
Parking Brake & Brake
Fluid Warning Light
This warning light illuminates:
• Once you set 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
reservoir is low.
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
details, refer to “Brake Fluid” in
chapter 7). Then check all brake
components for fluid leaks. If any
leak in the brake system is still
found, the warning light remains
on, or the brakes do not operate
properly, do not drive the vehicle.
In this case, we recommend that
you have the vehicle towed to an
authorised HYUNDAI dealer and
inspected.
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 are
required to stop the 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 whilst 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.

3-83
Convenient features of your vehicle
3
Anti-lock Brake System
(ABS) Warning Light
This warning light illuminates:
• Once you set 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 authorised HYUNDAI dealer.
Electronic Brake force
Distribution (EBD)
System Warning Light
These two warning lights illuminate
at the same time whilst driving:
• When the ABS and regular brake
system may not be working nor-
mally.
In this case, we recommend that
you have the vehicle inspected by
an authorised 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 authorised
HYUNDAI dealer.
WARNING

3-84
Convenient features of your vehicle
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 authorised
HYUNDAI dealer as soon as possible.Electric Parking Brake
(EPB) Warning Light
(if equipped)
This warning light illuminates:
• Once you set 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 EPB.
In this case, we recommend that
you have the vehicle inspected by
an authorised HYUNDAI dealer.
Information - Electric Parking
Brake (EPB) Warning Light
The Electric Parking Brake (EPB)
Warning Light may illuminate when
the Electronic Stability control (ESC)
Indicator Light comes on to indicate
that the ESC is not working properly
(This does not indicate malfunction of
the EPB).i
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.
In this case, avoid high speed
driving and abrupt braking.
We recommend you have the
vehicle inspected by an autho-
rised HYUNDAI dealer as soon
as possible.
WARNINGEPB

5-77
Driving your vehicle
5
Ready to leave after parking on
a hill
1.With the shift lever to P (Park, for
automatic transaxle vehicle) or
neutral (for manual transaxle vehi-
cle), apply your brakes and hold
the brake pedal down whilst you:
• Start your engine;
• Shift into gear; and
• Release the parking brake.
2.Slowly remove your foot from the
brake pedal.
3.Drive slowly until the trailer is clear
of the chocks.
4.Stop and have someone pick up
and store the chocks.
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 transaxle fluid, axle lubricant
and cooling system fluid. Brake con-
dition is another important item to
frequently check. If you are planning
a trip with a trailer, it's a good idea to
review these items before you start
your trip. Don't forget to also maintain
your trailer and towbar. Follow the
maintenance schedule that accom-
panied your trailer and check it peri-
odically. Preferably, conduct the
check at the start of each day's driv-
ing. Most importantly, all towbar 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.
• When towing check automatic
transaxle fluid more frequently.
NOTICE

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
Owner maintenance schedule ........................................7-7
Scheduled maintenance services.........................7-9
Normal maintenance schedule.....................................7-10
Maintenance under severe usage conditions ..........7-14
Explanation of scheduled maintenance items ..7-16
Engine oil ..............................................................7-20
Checking the engine oil level ....................................7-20
Checking the engine oil and filter ..............................7-21
Engine coolant......................................................7-22
Checking the coolant level ...........................................7-22
Changing the coolant .....................................................7-24
Brake fluid ...........................................................7-25
Checking the brake fluid level .....................................7-25
Washer fluid .........................................................7-27
Checking the washer fluid level ...............................7-27
Parking brake .......................................................7-27
Checking the parking brake .........................................7-27
Air cleaner ............................................................7-28
Filter replacement ...........................................................7-28
Climate control air filter .....................................7-30
Filter inspection ...............................................................7-30
Filter replacement ...........................................................7-30
Wiper blades .........................................................7-31
Blade inspection ..............................................................7-31
Blade replacement ..........................................................7-31
Battery...................................................................7-33
For best battery service................................................7-33
Battery capacity label ...................................................7-34
Battery recharging .......................................................7-35
Reset items .......................................................................7-36
Tyres and wheels .................................................7-37
Tyre care ...........................................................................7-37
Recommended cold tyre inflation pressures ...........7-37
Checking tyre inflation pressure.................................7-39
Tyre rotation ...................................................................7-40
Wheel alignment and tyre balance.............................7-41
Tyre replacement ............................................................7-41
Wheel replacement ........................................................7-43
Tyre traction .....................................................................7-43
Tyre maintenance ..........................................................7-43
Tyre sidewall labelling ....................................................7-43
Low aspect ratio tyre.....................................................7-48
Fuses ......................................................................7-49
Fuse/Relay panel description ......................................7-55
7

7-3
7
Maintenance
ENGINE COMPARTMENT
1. Engine coolant reservoir
2. Radiator cap
3. Brake fluid reservoir
4. Air cleaner
5. Engine oil dipstick
6. Engine oil filler cap
7. Windscreen washer fluid reservoir
8. Fuse box
9. Battery
OLF014008R
■Petrol Engine (Theta II 2.0L T-GDI)
The actual engine room in the vehicle may differ from the illustration.

7-4
Maintenance
1. Engine coolant reservoir
2. Radiator cap
3. Brake fluid reservoir
4. Air cleaner
5. Engine oil dipstick
6. Engine oil filler cap
7. Windscreen washer fluid reservoir
8. Fuse box
9. Battery
OLF014006R
■Petrol Engine (Theta II 2.4L GDI)
The actual engine room in the vehicle may differ from the illustration.