2020 Hyundai Sonata Brake maintenance

Maintenance8-50
Instrument panel fuse panel
Fuse Name (A) Circuit Protected
S/HEATER (FRT) 25A F
ront Seat Warmer Control Module, Front Air Ventilation Seat
Control Module
TRUNK 10A ICU Junction Block (Trunk Lid Relay)
DOOR LOCK 20A ICU Junction Block (Door Lock Relay,
Door Unlock Relay, Two Turn Unlock Relay)
MODULE1 7.5A Key Solenoid
MODULE3 10A Driver Door Module, Passenger Seat Relax Unit,
Hazard Switch, Crash Pad Switch (Up),
Front Mood Lamp Unit, Start/stop Button Switch,
Driver/Passeger Smart Key Outside Handle
S/HEATER (RR) 25A Rear Seat Warmer Control Module
P/SEAT (PASS) 30A Passenger Seat Manual Switch, Passenger Seat Relax Unit MODULE6 10A Driver Door ModuleSAFETY
P/WINDOW (RH) 30APassenger Safety Power Window Module,
Rear Power Window Switch RH
P/SEAT (DRV) 30A Dirver Seat Manual Switch, Driver IMS Module
IBU1 15A IBU, Driver/Passenger Door NFC Module, IAU,
BLE Unit, Ignition Switch
AMP 25A AMP, DC-DC Converter (AMP)
SAFETY
P/WINDOW (LH) 30ADriver Safety Power Window Module,
Rear Power Window Switch LH
BRAKE SWITCH 10A IBU, Stop Lamp Switch
SUNROOF2 20A Panorama Sunroof, Data Link ConnectorAIR BAG2 10A SRS Contorl ModuleAIR BAG1 15A SRS Contorl Module, Passenger Occupant Detection Sensor
E-SHIFTER1 10A SCU, Electronic ATM Shift Lever
MEMORY 10A Driver IMS Module, Security Indicator, A/C Switch,
Driver/Passenger Power Outside Mirror,
A/C Control Module, Instrument Cluster,
Rain Sensor, Head-Up Display

Maintenance8-54
Engine compartment fuse panel
Fuse Name (A) Circuit Protected
FUSE HEA
TED
MIRROR 10ADriver/Passenger Power Outside Mirror, A/C Switch,
A/C Control Module, ECM
ECU5 10A [G4FN] ECM
AMS 10A Battery Sensor
FUEL PUMP 1 20A E/R Junction Block (Fuel Pump Relay) A/C 2 10A A/C Control Module
B+4 60A ICU Junction Block (Long Term Load Latch Relay,
Fuse - MODULE3, AIR BAG2, E-SHIFTER1, SUNROOF1,
SUNROOF2, S/HEATER (FRT), TRUNK, BRAKE SWITCH,
DOOR LOCK)

08
8-63
Repairing your vehicle’s finish
Deep scratches or stone chips in the
painted surface must be repaired
promptly. Exposed metal will quickly
rust and may develop into a major repair
expense.
NOTICE
If your vehicle is damaged and requires
any metal repair or replacement,
be sure the body shop applies anti-
corrosion materials to the parts
repaired or replaced.
NOTICE
Matte paint finish vehicle (if equipped)
In case of matte paint finish vehicles,
it is impossible to modify only the
damaged area and repair of the whole
part is necessary. If the vehicle is
damaged and painting is required,
we recommend that you have your
vehicle maintained and repaired by
an authorized HYUNDAI dealer. Take
extreme care, as it is difficult to restore
the quality after the repair.
Bright-metal maintenance
• To remove road tar and insects, use a tar remover, not a scraper or other
sharp object.
• To protect the surfaces of bright metal parts from corrosion, apply a coating
of wax or chrome preservative and rub
to a high luster.
• During winter weather or in coastal areas, cover the bright metal parts
with a heavier coating of wax or
preservative. If necessary, coat the
parts with non-corrosive petroleum
jelly or other protective compound.
Underbody maintenance
Corrosive materials used for ice and
snow removal and dust control may
collect on the underbody. If these
materials are not removed, accelerated
rusting can occur on underbody parts
such as the fuel lines, frame, floor pan
and exhaust system, even though they
have been treated with rust protection.
Thoroughly flush the vehicle underbody
and wheel openings with lukewarm or
cold water once a month, after off-road
driving and at the end of each winter. Pay
special attention to these areas because
it is difficult to see all the mud and dirt.
It will do more harm than good to wet
down the road grime without removing
it. The lower edges of doors, rocker
panels, and frame members have drain
holes that should not be allowed to clog
with dirt; trapped water in these areas
can cause rusting.
WARNING
After washing the vehicle, test the
brakes while driving slowly to see if
they have been affected by water. If
braking performance is impaired, dry
the brakes by applying them lightly
while maintaining a slow forward
speed.
Aluminum wheel maintenance
The aluminum wheels are coated with a
clear protective finish.

I
I-3
Mode selection ........................................................................\
...................... 5-130
Instrument panel vents ........................................................................\
.......... 5-132
Temperature control ........................................................................\
.............. 5-132
Air intake control ........................................................................\
.................. 5-133
Fan speed control ........................................................................\
.................. 5-134
Air conditioning ........................................................................\
.................... 5-134
OFF mode........................................................................\
.............................. 5-134
System operation ........................................................................\
................... 5-135
System maintenance ........................................................................\
.............. 5-136
Air conditioning refrigerant label......................................\
............................ 5-137
Automatic transmission ........................................................................\
............... 6-13 Transmission ranges ........................................................................\
................ 6-14
Paddle shifter (manual shift mode) ................................................................. 6-19
Shift-lock system ........................................................................\
..................... 6-15
Good driving practices ........................................................................\
............ 6-18
Parking ................................................................\
............................................ 6-16
Automatic ventilation ........................................................................\
................ 5-143
AUX, USB and iPod
® port ........................................................................\
........ 5-152
B
Battery ................................................................\
................................................. 8-31 Battery recharging ........................................................................\
................... 8-32
Battery saver function ........................................................................\
.................. 5-79
Before driving ........................................................................\
................................ 6-5
Blind-Spot Collision Warning (BCW) ................................................................. 6-67
Blind-Spot Collision-Avoidance Assist (BCA) ................................................... 6-67
Blind-Spot View Monitor (BVM) ....................................................................... 6-87
Blue Link
® center ........................................................................\
....................... 5-154
Bluetooth® Wireless Technology hands-free ..................................................... 5-154
Brake fluid ........................................................................\
................................... 8-24
Brake system ........................................................................\
................................ 6-20 Power brakes ........................................................................\
........................... 6-20
Disc brakes wear indicator ........................................................................\
...... 6-20
Electronic Parking Brake (EPB) ..................................................................... 6-21
Auto Hold ........................................................................\
................................ 6-24
Anti-lock Brake System (ABS) ....................................................................... 6-27
Electronic Stability Control (ESC)....................................\
.............................. 6-29
Vehicle Stability Management (VSM) ............................................................ 6-31
Good braking practices ........................................................................\
........... 6-32

IndexI-6
Emission control system ........................................................................\
.............. 8-67 Crankcase emission control system ................................................................ 8-68
Evaporative emission control System ............................................................. 8-68
Exhaust emission control system .................................................................... 8-68
Engine compartment ........................................................................\
.............. 2-6, 8-3
Engine compartment panel fuse replacement ...................................................... 8-48
Engine coolant ........................................................................\
............................. 8-21
Engine coolant temperature gauge........................................................................\
. 4-4
Engine number ........................................................................\
............................. 2-14
Engine oil ........................................................................\
..................................... 8-19
Engine specification........................................................................\
....................... 2-7
Engine Start/Stop button ........................................................................\
................ 6-9
Evaporative emission control System .................................................................. 8-68
Event Data Recorder (EDR) ........................................................................\
.......... 1-8
Exhaust emission control system ........................................................................\
. 8-68
Explanation of scheduled maintenance items ...................................................... 8-16
Exterior care........................................................................\
................................. 8-61
Exterior features........................................................................\
........................... 5-64 Hood ...................................................................\
............................................. 5-64
Trunk ...................................................................\
............................................ 5-65
Emergency trunk safety release....................................................................... 5-66
Fuel Filler Door ........................................................................\
....................... 5-70
Exterior overview Front view ........................................................................\
................................. 2-2
Rear view ........................................................................\
.................................. 2-3
F
Flat tire ........................................................................\
......................................... 7-12 Changing spare tire ........................................................................\
................ 7-12
Floor mat anchor(s)........................................................................\
.................... 5-151
Fluid Brake fluid ........................................................................\
............................... 8-24
Washer fluid ........................................................................\
............................ 8-25
Forward Collision-Avoidance Assist (FCA) ....................................................... 6-40 FCA-Junction Turning function ...................................................................... 6-55
Forward/Reverse Parking Distance Warning (PDW) .......................................... 5-99

IndexI-12
Manual climate control system ........................................................................\
.. 5-118 Heating and air conditioning ........................................................................\
. 5-119
Mode selection ........................................................................\
...................... 5-120
Instrument panel vents ........................................................................\
.......... 5-122
Temperature control ........................................................................\
.............. 5-122
Air intake control ........................................................................\
.................. 5-122
Fan speed control ........................................................................\
.................. 5-123
Air conditioning ........................................................................\
.................... 5-123
System operation ........................................................................\
................... 5-124
System maintenance ........................................................................\
.............. 5-125
Air conditioning refrigerant label......................................\
............................ 5-126
Mirrors ................................................................\
................................................. 5-46
Inside rearview mirror ........................................................................\
............. 5-46
HomeLink
® system.................................................................\
......................... 5-47
Side view mirrors ........................................................................\
.................... 5-53
Adjusting the side view mirrors ...................................................................... 5-54
Folding the side view mirrors ........................................................................\
. 5-54
Reverse parking aid function ........................................................................\
.. 5-55
N
Navigation-based Smart Cruise Control (NSCC) .............................................. 6-105
O
Occupant Classification System (OCS) ............................................................... 3-47
Odometer ...............................................................\
................................................ 4-5
Oil (Engine) ........................................................................\
................................. 8-19
Outside temperature gauge ........................................................................\
............ 4-5
Owner maintenance ........................................................................\
....................... 8-5
P
Panoramic sunroof ........................................................................\
....................... 5-60
Parking lamp position ........................................................................\
.................. 5-75
Passenger’s front air bag ........................................................................\
.............. 3-39
Power brakes ........................................................................\
................................ 6-20
Power outlet ........................................................................\
............................... 5-146
Power window lock switch ........................................................................\
.......... 5-59
Pre-tensioner seat belt ........................................................................\
.................. 3-24 Retractor pretensioner ........................................................................\
............. 3-24