Brake system Hyundai Sonata 2017 Repair Manual

7-30
Maintenance
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Checking the Brake Fluid Level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-
ination. If the level is low, add the specified
brake fluid to the MAX level. The level
will fall with accumulated mileage.
This is a normal condition associated
with the wear of the brake linings. If
the fluid level is excessively low, have
the brake system checked by an
authorized HYUNDAI dealer.
Do not allow brake fluid to con-
tact the vehicle’s body paint, as
paint damage will result.
Brake fluid, which has been exposed to open air for an
extended time should NEVER be
used as its quality cannot be
guaranteed. It should be dis-
posed of properly.
Do not use the wrong kind of brake fluid. A few drops of miner-
al based oil, such as engine oil, in
your brake system can damage
brake system parts.
Information
Use only the specified brake fluid
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
i
NOTICE
If the brake system requires fre-
quent additions of fluid this
could indicate a leak in the
brake system. Have the vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING
Do not allow brake fluid to come
in contact with your eyes. If
brake fluid comes in contact
with your eyes, flush your eyes
with clean water for at least 15
minutes and get immediate
medical attention.
WARNING
OLF074008N

7-41
7
Maintenance
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Tire Care
For proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within the
load limits and weight distribution rec-
ommended for your vehicle.
(Continued)Replace tires that are worn,
show uneven wear, or are dam-
aged. Worn tires can cause
loss of braking effectiveness,
steering) control, or traction.
ALWAYS replace tires with the
same size as each tire that
was originally supplied with
this vehicle. Using tires and
wheels other than the recom-
mended sizes could cause
unusual handling characteris-
tics, poor vehicle control, or
negatively affect your vehi-
cle’s Anti-Lock Brake System
(ABS) resulting in a serious
accident.
Tire failure may cause loss of
vehicle control resulting in an
accident. To reduce risk of
SERIOUS INJURY or DEATH,
take the following precautions:
Inspect your tires monthly for
proper inflation as well as
wear and damage.
The recommended cold tire
pressure for your vehicle can
be found in this manual and on
the tire label located on the dri-
ver’s side center pillar. Always
use a tire pressure gauge to
measure tire pressure. Tires
with too much or too little
pressure wear unevenly caus-
ing poor handling.
Check the pressure of the
spare every time you check
the pressure of the other tires
on your vehicle.
(Continued)
WARNING

7-45
7
Maintenance
Wheel Alignment and Tire
Balance
The wheels on your vehicle were
aligned and balanced carefully at the
factory to give you the longest tire life
and best overall performance.
In most cases, you will not need to
have your wheels aligned again.
However, if you notice unusual tire
wear or your vehicle pulling one way
or the other, the alignment may need
to be reset.
If you notice your vehicle vibrating
when driving on a smooth road, your
wheels may need to be rebalanced.
Improper wheel weights can dam-
age your vehicle’s aluminum
wheels. Use only approved wheel
weights.
Tire Replacement
If the tire is worn evenly, a tread wear
indicator will appear as a solid band
across the tread. This shows there is
less than 1/16 inch (1.6 mm) of tread
left on the tire. Replace the tire when
this happens.
Do not wait for the band to appear
across the entire tread before replac-
ing the tire.
NOTICE
OLMB073027
Tread wear indicatorTo reduce the risk of DEATH or
SERIOUS INJURY:
Replace tires that are worn,
show uneven wear, or are
damaged. Worn tires can
cause loss of braking effec-
tiveness, steering control, and
traction.
Always replace tires with the
same size as each tire that
was originally supplied with
this vehicle. Using tires and
wheels other than the recom-
mended sizes could cause
unusual handling characteris-
tics, poor vehicle control, or
negatively affect your vehi-
cle’s Anti-Lock Brake System
(ABS) resulting in a serious
accident.(Continued)
WARNING

I-2
A/V mode ........................................................................\
3-77
AFLS (Adaptive Front Lighting System) .....................3-116
Air bag warning labels ....................................................2-68
Air bags ........................................................................\
...2-45Additional safety precautions .....................................2-67
Air bag collision sensors ............................................2-61
Air bag inflation conditions .......................................2-63
Air bag non-inflation conditions ................................2-64
Air bag warning labels ...............................................2-68
Curtain air bags ..........................................................2-49
Do not install a child restraint on the front passenger seat ...........................................................2-60
Driver’s front air bag..................................................2-47
Driver’s knee air bag ..................................................2-47
How does the air bag system operate? .......................2-51
Occupant classification system (OCS) .......................2-56
Passenger’s front air bag ............................................2-47
Side air bags ...............................................................2-48
SRS Care ....................................................................2-66\
SRS warning light ......................................................2-51
What to expect after an air bag inflates .....................2-55
Why didn’t my air bag go off in a collision ..............2-61
Air cleaner.......................................................................7\
-32
Air conditioner compressor label ...................................8-10
Air conditioning system (Refrigerant/Compressor) .........8-5
Air ventilation seats ........................................................2-21 Airconditioning system
Automatic climate control system............................3-139
Manual climate control system ................................3-129
Alarm system ..................................................................3-19
Antenna ........................................................................\
.....4-2
Anti-lock brake system (ABS) .......................................5-40
Appearance care..............................................................7-82 Exterior care ...............................................................7-82
Interior care ................................................................7-87
Armrest ........................................................................\
...2-14
Auto door lock/unlock features ......................................3-17
Auto hold ........................................................................\
5-37
Auto light position ........................................................3-109
Automatic climate control system ................................3-139 Air conditioning .......................................................3-146
Automatic heating and air conditioning ...................3-140
Climate control air filter...................................3-137, 149
Manual heating and air conditioning .......................3-141
Automatic transmission ..................................................5-14 Manual shift mode......................................................5-17
Automatic transmission shift indicator ...........................3-73
Automatic emergency braking (AEB) ............................5-81 System setting and activation .....................................5-81
AEB warning message and system control................5-83
Sensor to detect the distance from the vehicle in front (front radar) ................................................5-86
System malfunction ....................................................5-87
Limitation of the system ............................................5-89
AUX, USB and iPod
®port ...............................................4-2
Index
A

I-3
Battery ........................................................................\
.....7-38
Battery saver function ...................................................3-115
Before driving ...................................................................5-4
Blind spot detection system (BSD) ................................5-73
Blind spot mirror.............................................................3-41
Brake fluid ......................................................................7-\
30
Brake system ...................................................................5-28Anti-lock brake system (ABS) ...................................5-40
Auto hold ....................................................................5-37\
Disc brakes wear indicator ........................................5-29
Electronic parking brake (EPB) .................................5-31
Electronic stability control (ESC) ..............................5-43
Hill-start assist control (HAC) ...................................5-46
Parking brake (Manual)..............................................5-29
Power brakes ..............................................................5-28
Bulb replacement ............................................................7-70
Bulb wattage .....................................................................8-3\
Button start/stop, see engine start/stop button ..................5-9 California perchlorate notice ..........................................7-94
Capacities (Lubricants) .....................................................8-6
Care
Exterior care ...............................................................7-82
Interior care ................................................................7-87
Tire care ......................................................................7-\
41
Center console storage ..................................................3-155
Central door lock switch .................................................3-16
Certification label .............................................................8-9
Chains Tire chains ..................................................................5-96
Checking tire inflation pressure ......................................7-43
Child restraint system (CRS) ..........................................2-34 Booster seats...............................................................2-37
Children always in the rear ........................................2-34
Forward-facing child seats ........................................2-37
Installing a Child Restraint System (CRS) ................2-37
Lower anchors and tether for children (LATCH) system .......................................................................2\
-38
Rear-facing child seats ..............................................2-36
Securing with lap/shoulder belt..................................2-42
Securing with LATCH anchors ..................................2-40
Securing with Tether anchors .....................................2-41
Selecting a Child Restraint System (CRS).................2-35
Child-protector rear door lock ........................................3-18
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Index
BC

I-4
Climate control air filter .......................................3-137, 149
Climate control air filter (Replacement).........................7-34
Clock ........................................................................\
.....3-160
Clothes hanger ..............................................................3-161
Combined instrument, see instrument cluster ................3-67
Compact spare tire ..........................................................6-20
Consumer information ....................................................8-11
Coolant ........................................................................\
....7-27
Cooling fluid, see engine coolant ...................................7-27
Cruise control system .....................................................5-50
Cup holder.....................................................................3-1\
57
Curtain air bags ...............................................................2-49
Dashboard illumination, see instrument panel illumination ...................................................................3-69
Dashboard, see instrument cluster ..................................3-67
Day/night rearview mirror ..............................................3-25
Daytime running light ...................................................3-116
Defogging (Windshield) ...............................................3-151
Defroster (Rear window) ..............................................3-128
Defrosting (Windshield) ...............................................3-151
Digital speedometer ........................................................3-96
Dimensions .......................................................................8\
-2
Disc brakes wear indicator ............................................5-29
Display illumination, see instrument panel illumination ...................................................................3-69 Displays, see instrument cluster .....................................3-67
Do not install a child restraint on the front
passenger seat ...............................................................2-60
Door courtesy lamp.......................................................3-120
Door locks .......................................................................3\
-14 Auto door lock/unlock features ..................................3-17
Central door lock switch ............................................3-16
Child-protector rear door lock....................................3-18
Drink holders, see cup holders .....................................3-157
Drive mode integrated control system ...........................5-48
Driver assist system Rear parking assist system (RPAS) ..........................3-125
Rear view camera .....................................................3-124
Driver position memory system ....................................3-20
Driver’s front air bag ......................................................2-47
Driver’s knee air bag ......................................................2-47
Driving at night ...............................................................5-94
Driving in flooded areas .................................................5-95
Driving in the rain...........................................................5-95
Dynamic bending light, see AFLS (Adaptive Front Lighting System)..............................3-116
Index
D

I-5
Ecoshift dual clutch transmission ...................................5-18Shift indicator .............................................................3-73
Manual shift mode......................................................5-23
Electric chromic mirror (ECM) with compass and HomeLink
®system.......................................................3-33
Electric chromic mirror (ECM) with HomeLink®
system, compass and Blue Link®.................................3-26
Electronic parking brake (EPB) ......................................5-31
Electric power steering (EPS).........................................3-22
Electronic stability control (ESC)...................................5-43
Emission control system .................................................7-90
Engine ........................................................................\
.......8-2
Engine compartment..................................................1-6, 7-3
Engine compartment panel fuse .....................................7-59
Engine coolant ................................................................7-27
Engine coolant temperature gauge .................................3-71
Engine number ................................................................8-10
Engine oil ........................................................................\
7-24
Engine start/stop button ....................................................5-9
Explanation of scheduled maintenance items.................7-21
Exterior care....................................................................7-82\
Exterior overview (front) ..................................................1-2
Exterior overview (rear) ...................................................1-3 Flat tire (with spare tire) .................................................6-15
Changing tires ............................................................6-16
Compact spare tire......................................................6-20
Jack and tools .............................................................6-15
Flat tire (with Tire Mobility Kit) ....................................6-23
Floor mat anchor (s) .....................................................3-162
Fluid Brake fluid ..................................................................7-30
Washer fluid ...............................................................7-31
Folding rear seats ............................................................2-12
Folding the side view mirrors .........................................3-42
Front seats ........................................................................\
.2-6
Fuel filler lid ...................................................................3-63 Emergency fuel filler door release .............................3-66
Fuel gauge .......................................................................3\
-72
Fuel requirements .............................................................F-7
Fuse switch .....................................................................7-5\
9
Fuses ........................................................................\
.......7-57 Engine compartment panel fuse .................................7-59
Fuse switch .................................................................7-59
Fuse/relay panel description .......................................7-61
Instrument panel fuse .................................................7-58
Main fuse ....................................................................7-60\
Multi fuse ...................................................................7-60
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Index
FE

I-9
Multimedia system............................................................4-23.8 Inch Mono TFT ....................................................4-17
Antenna ........................................................................\
4-2
AUX, USB and iPod
®port ..........................................4-2
Blue Link®..................................................................4-54
Steering wheel audio control........................................4-3
Voice recognition........................................................4-46
Occupant classification system (OCS) ...........................2-56
Odometer........................................................................\
.3-72
Oil (Engine) ....................................................................7-24\
Outside temperature gauge .............................................3-73
Owner maintenance ..........................................................7-7
Paddle shifter ..................................................................5-24
Panoramic sunroof ..........................................................3-52
Parking brake ..................................................................7-31
Parking brake (Manual) ..................................................5-29
Parking lamp position ...................................................3-110
Passenger’s front air bag.................................................2-47
Power brakes ...................................................................5-28
Power outlet ..................................................................3-158
Power window lock button .............................................3-47 Rear combination light bulb replacement.......................7-76
Rear parking assist system(RPAS) ...............................3-125
Rear seats ........................................................................\
2-12
Rear view camera .........................................................3-124
Recommended cold tire inflation pressure .....................7-42
Recommended lubricants and capacities ..........................8-6
Recommended lubricants and capacities
Recommended SAE viscosity number .........................8-8
Refrigerant label .............................................................8-10
Remote key .......................................................................3\
-4
Replacement light bulb ...................................................7-69
Reporting safety defects .................................................8-12
Reverse parking aid function ..........................................3-43
Rocking the vehicle ........................................................5-93
Room lamp ....................................................................3-119
Rotation (Tire) ................................................................7-44
Safety messages ................................................................F-6
SCC/LDWS mode...........................................................3-77
Scheduled maintenance service ........................................7-9
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Index
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