2021 HYUNDAI SONATA epb

6-24
Parking brake warning light
Check the parking brake
warning light by placing the
ignition switch to the ON
position (do not start the
engine).
This light will be illuminated when the
parking brake is applied with the ignition
switch in the START or ON position.
If the parking brake warning light
remains on after the parking brake
is released while engine is running,
there may be a malfunction in the
brake system. Immediate attention is
necessary.
If at all possible, cease driving the vehicle
immediately. If that is not possible,
use extreme caution while operating
the vehicle and only continue to drive
the vehicle until you can reach a safe
location.
Emergency braking
If there is a problem with the brake
pedal while driving, emergency braking
is possible by pulling up and holding
the EPB switch. Braking is possible only
while you are holding the EPB switch.
However, braking distance will be longer
than normal.
WARNING
Do not operate the parking brake while
the vehicle is moving except in an
emergency situation. It could damage
the brake system and lead to a severe
accident.
Information
During emergency braking, the parking
brake warning light will illuminate to
indicate that the system is operating.
NOTICE
If you continuously notice a noise or
burning smell when the EPB is used
for emergency braking, have system
checked by an authorized HYUNDAI
dealer.
When the EPB (Electronic Parking Brake)
does not release
If the EPB does not release normally,
contact an authorized HYUNDAI dealer
by loading the vehicle on a flatbed tow
truck and have the system checked.
Auto Hold
The Auto Hold maintains the vehicle in a
standstill even though the brake pedal is
not depressed after the driver brings the
vehicle to a complete stop by depressing
the brake pedal.
To apply :
ODN8069015
1. With the driv er's door and engine
hood closed, depress the brake
pedal and then press the [AUTO
HOLD] switch. The white AUTO HOLD
indicator will come on and the system
will be in the standby position.
••CLUSTER
While Driving

06
6-25
ODN8069016
2. When you stop the vehicle completely by depressing the brake
pedal, the Auto Hold maintains the
brake pressure to hold the vehicle
stationary. The indicator changes from
white to green.
3.

The v
ehicle will remain stationary
even if you release the brake pedal.
4.
If EPB is applied, A

uto Hold will be
released.
To release :
• If you press the accelerator pedal
with the gear in D (Drive), R (Reverse)
or Manual shift mode, the Auto Hold
will be released automatically and the
vehicle will start to move. The AUTO
HOLD indicator changes from green
to white.
• If the vehicle is restarted using the
cruise control toggle switch (RES+
or SET-) while Auto Hold and cruise
control is operating, the Auto Hold will
be released regardless of accelerator
pedal operation. The AUTO HOLD
indicator changes from green to
white.
WARNING
When the AUTO HOLD is automatically
released by depressing the accelerator
pedal, always take a look around your
vehicle.
Slowly depress the accelerator pedal
for a smooth start.
To cancel :
ODN8069017
1. Depress the brake pedal.
2.

Pr
ess the [AUTO HOLD] switch.
The AUTO HOLD indicator will turn off.
Information
• The Auto Hold does not operate when:
-The driver's door

is opened
-The engine hood is opened
-The gear

is in P (Park)
-The EPB is applied
• For

your safety, the Auto Hold
automatically switches to EPB when:
- The driver's door

is opened with the
gear in D (Drive) or N (Neutral)
- The trunk is opened with the gear

in
R (Reverse)
- The engine hood is opened with the
gear

in D (Drive) or N (Neutral)
-The vehicle stops for

more than 10
minutes
- The vehicle stands on a steep slope
-The vehicle moves several times
••CLUSTER

6-26
In these cases, the parking brake
warning light comes on, the AUTO
HOLD indicator changes from green
to white, and a warning sound and a
message will appear to inform you that
EPB has been automatically engaged.
Before driving off again, press foot
brake pedal, check the surrounding
area near your vehicle and release
parking brake manually with the EPB
switch.
• While operating Auto Hold, you may
hear mechanical noise. However, it is
normal operating noise.
NOTICE
If the AUTO HOLD indicator changes
to yellow, the Auto Hold is not working
properly. Contact an authorized
HYUNDAI dealer.
WARNING
• Depress the accelerator pedal slowly
when you start the vehicle.
• For your safety, cancel the Auto Hold
when you drive downhill, back up the
vehicle or park the vehicle.
NOTICE
If there is a malfunction with the
driver's door or engine hood open
detection system, the Auto Hold may
not work properly.
Contact an authorized HYUNDAI dealer.
Warning messages
OTM058187L
Parking brake automatically engaged
When the EPB is applied from Auto Hold,
a warning will sound and a message will
appear.
OIK057079N
AUTO HOLD turning Off!
Press brake pedal
When the conversion from Auto Hold to
EPB is not working properly a warning
will sound and a message will appear.
When this message is displayed, the Auto
Hold and EPB may not operate. For your
safety, depress the brake pedal.
While Driving

6-34
When the system is deactivated:
ODN8069019
The ISG OFF button indicator illuminates.
If the message "Auto Stop is Off.
OIK057173N
Start vehicle manually", appears on the
LCD display with a beep sound, restart
the vehicle manually by depressing the
brake pedal with the vehicle shifted
to P (Park) or N (Neutral). For your
safety, restart the vehicle in the P (Park)
position.
Auto start
To restart the engine in the auto stop
mode
Release the brake pedal.
- When Auto Hold is activated, if you release the brake pedal, the engine will
be in the auto stop state. However, if
you depress the accelerator pedal, the
engine will start again.
The auto stop indicator () goes OFF on
the instrument cluster, when the engine
is restarted.
The engine is automatically restarted in
the following situations.
• The brake vacuum pressure is low
• The engine has stopped for about 5
minutes
• The air conditioning is ON with the fan
speed set to the highest position
• The front defroster is ON
• The battery is weak
• The cooling and heating performance
of the climate control system is
unsatisfactory
• The vehicle is shifted to P (Park) when
Auto Hold is activated
• The door is opened or the seatbelt
is unfastened when Auto Hold is
activated
• The EPB switch is pressed when Auto
Hold is activated
The auto stop indicator (
) blinks in
green for 5 seconds on the instrument
cluster.
While Driving

08
8-55
Engine compartment fuse panel
Fuse Name (A)Circuit Protected
MULTI
FUSE-1 IG2
30AE/R Junction Block (Start Relay), PCB Block (IG2 Relay)
BLOWER 40AE/R Junction Block (Blower Relay)
ABS1 40AESC Module
B+2 50AICU Junction Block (IPS4, IPS3, IPS1, Fuse - AMP, IBU1)
PTC HEATER 50AE/R Junction Block (PTC Heater Relay)
B+3 50AICU Junction Block (IPS5, IPS7, IPS9, IPS10, IPS8, IPS6)
OIL PUMP1 50AElectronic Oil Pump
COOLING FAN 80A
Cooling Fan Motor
MDPS 80AMDPS Unit
MULTI
FUSE-2 E-SHIFTER
30ASCU
E-CVVT1 40A[G4FN] CVVD ACTUATOR
[====] E/R Junction Block (E-CVVT Relay)
IG1 40APCB Block (IG1 Relay, ACC Relay)
REAR
HEATED 50A
E/R Junction Block (Rear Heated Relay)
EPB 60AESC Module
B+5 60APCB Block (Engine Control Relay, Fuse - A/C1,
WIPER1, TCU1, HORN, ECU2)
B+1 60AICU Junction Block (Fuse - P/SEAT (DRV),
P/SEAT (PASS), MODULE1, SAFETY P/WINDOW (LH),
SAFETY P/WINDOW (RH), S/HEATER (RR))

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)
....................................................................... 6-94
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