warning light HYUNDAI TUCSON 2021 Repair Manual

5
Lane Keeping Assist (LKA) System ...................5-87
LKA System Operation...................................................5-89
Warning Light and Message.........................................5-91
Limitations of the System .............................................5-93
LKA System Function Change......................................5-95
Driver Attention Warning (DAW) System .........5-96
System Setting and Activation.....................................5-96
Resetting the System .....................................................5-97
System Standby ...............................................................5-98
System Malfunction .......................................................5-98
Cruise Control .....................................................5-100
Cruise Control operation .............................................5-100
Smart Cruise Control With Stop &
Go System ...........................................................5-105
Smart Cruise Control Switch ......................................5-105
Smart Cruise Control Speed .......................................5-106
Smart Cruise Control Vehicle-to-Vehicle
Distance ...........................................................................5-110
Smart Cruise Control Radar Sensor .........................5-114
To Adjust the Sensitivity of
Smart Cruise Control ....................................................5-115
Conventional Cruise Control Mode ...........................5-116
Limitations of the System...........................................5-117
Special Driving Conditions ................................5-122
Hazardous driving conditions ....................................5-122
Rocking the vehicle ......................................................5-122
Smooth cornering .........................................................5-123
Driving at night ..............................................................5-123
Driving in the rain .........................................................5-123
Driving in flooded areas..............................................5-124
Highway driving .............................................................5-124
Reducing the risk of a rollover .................................5-125
Winter Driving ....................................................5-126
Snow or Icy Conditions................................................5-126
Winter Precautions .......................................................5-128
Trailer Towing .....................................................5-130
If you decide to pull a trailer .....................................5-130
Trailer towing equipment ............................................5-132
Driving with a trailer ....................................................5-133
Maintenance when trailer towing.............................5-136
Vehicle Load Limit..............................................5-138
Tire Loading Information Label .................................5-139

5-4
Driving your vehicle
Before Entering the Vehicle
• Be sure all windows, outside mir-
ror(s), and outside lights are clean
and unobstructed.
Remove frost, snow, or ice.
Visually check the tires for uneven
wear and damage.
Check under the vehicle for any
sign of leaks.
Be sure there are no obstacles
behind you if you intend to back up.
Before Starting
Make sure the hood, the liftgate,
and the doors are securely closed
and locked.
Adjust the position of the seat and
steering wheel.
Adjust the inside and outside
rearview mirrors.
Verify all the lights work.
Fasten your seatbelt. Check that all
passengers have fastened their
seatbelts.
Check the gauges and indicators in
the instrument panel and the mes-
sages on the instrument display
when the ignition switch is in the
ON position.
Check that any items you are car-
rying are stored properly or fas-
tened down securely. CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide vari-
ety of automobile components
including components found in
the interior furnishings in a
vehicle, contain or emit harmful
chemicals known to the State of
California to cause cancer and
birth defects and reproductive
harm. In addition, certain fluids
contained in vehicles and cer-
tain products of components
contain or emit chemicals
known to the State of California
to cause cancer and birth
defects or other reproductive
harm.WARNING
B BE
EF
FO
OR
RE
E
D
DR
RI
IV
VI
IN
NG
G

5-6
Key Ignition Switch
Whenever the front door is opened,
the ignition switch will illuminate, pro-
vided the ignition switch is not in the
ON position. The light will go off
immediately when the ignition switch
is turned on or go off after about 30
seconds when the door is closed.
I IG
GN
NI
IT
TI
IO
ON
N
S
SW
WI
IT
TC
CH
H

Driving your vehicle
To reduce the risk of SERIOUS
INJURY or DEATH, take the fol-
lowing precautions:
NEVER allow children or any
person who is unfamiliar with
the vehicle to touch the igni-
tion switch or related parts.
Unexpected and sudden vehi-
cle movement can occur.
NEVER reach through the
steering wheel for the ignition
switch, or any other control,
while the vehicle is in motion.
The presence of your hand or
arm in this area may cause a
loss of vehicle control result-
ing in an accident.
WARNING
NEVER turn the ignition switch
to the LOCK or ACC position
while the vehicle is in motion
except in an emergency. This
will result in the engine turning
off and loss of power assist for
the steering and brake systems.
This may lead to loss of direc-
tional control and braking func-
tion, which could cause an acci-
dent.
Before leaving the driver's seat,
always make sure the shift lever
is in P (Park) position, apply the
parking brake, and turn ignition
switch to the LOCK position.
Unexpected vehicle movement
may occur if these precautions
are not followed.
WARNING
OTL055001

5-7
Driving your vehicle
5
Key ignition switch positions
Switch
PositionActionNotice
LOCK
To turn the ignition switch to the LOCK position, push the
key in slightly at the ACC position and turn the key
towards the LOCK position.
The ignition key can be removed in the LOCK position.
The steering wheel locks to protect the vehicle from theft.
(if equipped)
ACC
Some of the electrical accessories are usable.
The steering wheel unlocks.
ON
This is the normal key position when the engine has
started.
All features and accessories are usable.
The warning lights can be checked when you turn the
ignition switch from ACC to ON.Do not leave the ignition switch in the ON position when
the engine is not running in order to prevent the battery
from discharging.
START
To start the engine, turn the ignition switch to the START
position. The switch returns to the ON position when you
let go of the key.The engine will crank until you release the key.

5-11
Driving your vehicle
5
Button Position Action Notice
ON
Press the Engine Start/Stop button while it is
in the ACC position without depressing the
brake pedal.
The warning lights can be checked before
the engine is started.Do not leave the Engine Start/Stop button in
the ON position when the engine is not run-
ning to prevent the battery from discharging.
START
To start the engine, depress the brake pedal
and press the Engine Start/Stop button with
the shift lever in the P (Park) or in the N
(Neutral) position.
For your safety, start the engine with the shift
lever in the P (Park) position.If you press the Engine Start/Stop button with-
out depressing the brake pedal, the engine
does not start and the Engine Start/Stop but-
ton changes as follows:
OFF → →
ACC → →
ON → →
OFF
However, the engine may start if you depress
the brake pedal within 0.5 second after press-
ing the Engine Start/Stop button when it is in
the OFF position.

5-19
Driving your vehicle
Parking
Always come to a complete stop and
continue to depress the brake pedal.
Move the shift lever into the P (Park)
position, apply the parking brake,
and place the ignition switch in the
LOCK/OFF position. Take the Key
with you when exiting the vehicle.
Good Driving Practices
Never move the shift lever from P
(Park) or N (Neutral) to any other
position with the accelerator pedal
depressed.
Never move the shift lever into P
(Park) when the vehicle is in
motion.
Be sure the vehicle is completely
stopped before you attempt to shift
into R (Reverse) or D (Drive).
Do not move the shift lever to N
(Neutral) when driving. Doing so
may result in an accident because
of a loss of engine braking and the
transmission could be damaged.
Do not drive with your foot resting
on the brake pedal. Even light, but
consistent pedal pressure can
result in the brakes overheating,
brake wear and possibly even
brake failure.
Depressing both accelerator and
brake pedals at the same time can
trigger logic for engine power
reduction to assure vehicle decel-
eration. Vehicle acceleration will
resume after the brake pedal is
released. When driving in Manual Shift
Mode, slow down before shifting to
a lower gear. Otherwise, the lower
gear may not be engaged if the
engine rpms are outside of the
allowable range.
Always apply the parking brake
when leaving the vehicle. Do not
depend on placing the transmis-
sion in P (Park) to keep the vehicle
from moving.
Exercise extreme caution when
driving on a slippery surface. Be
especially careful when braking,
accelerating or shifting gears. On a
slippery surface, an abrupt change
in vehicle speed can cause the
drive wheels to lose traction and
may cause loss of vehicle control
resulting in an accident.
Optimum vehicle performance and
economy is obtained by smoothly
depressing and releasing the
accelerator.
5
When you stay in the vehicle
with the engine running, be
careful not to depress the
accelerator pedal for a long
period of time. The engine or
exhaust system may overheat
and start a fire.
The exhaust gas and the
exhaust system are very hot.
Keep away from the exhaust
system components.
Do not stop or park over flam-
mable materials, such as dry
grass, paper or leaves. They
may ignite and cause a fire.
WARNING

5-21
Driving your vehicle
5
Power Brakes
Your vehicle has power-assisted
brakes that adjust automatically
through normal usage.
If the engine is not running or is
turned off while driving, the power
assist for the brakes will not work.
You can still stop your vehicle by
applying greater force to the brake
pedal than typical. The stopping dis-
tance, however, will be longer than
with power brakes.
When the engine is not running, the
reserve brake power is partially
depleted each time the brake pedal
is applied. Do not pump the brake
pedal when the power assist has
been interrupted.
Pump the brake pedal only when
necessary to maintain steering con-
trol on slippery surfaces.
B BR
RA
AK
KI
IN
NG
G
S
SY
YS
ST
TE
EM
M

Take the following precautions:
Do not drive with your foot
resting on the brake pedal.
This will create abnormal high
brake temperatures, exces-
sive brake lining and pad
wear, and increased stopping
distances.
When descending down a
long or steep hill, move the
gear shift lever to Manual
Shift Mode and manually
downshift to a lower gear in
order to control your speed
without using the brake pedal
excessively. Applying the
brakes continuously will
cause the brakes to overheat
and could result in a tempo-
rary loss of braking perform-
ance.
Wet brakes may impair the
vehicle's ability to safely slow
down; the vehicle may also
pull to one side when the
brakes are applied. Applying
the brakes lightly will indicate
whether they have been
affected in this way. Always
test your brakes in this fash-
ion after driving through deep
water. To dry the brakes, light-
ly tap the brake pedal to heat
up the brakes while maintain-
ing a safe forward speed until
brake performance returns to
normal. Avoid driving at high
speeds until the brakes func-
tion correctly.WARNING

5-22
Driving your vehicle
Disc Brakes Wear Indicator
When your brake pads are worn and
new pads are required, you will hear
a high pitched warning sound from
your front or rear brakes. You may
hear this sound come and go or it
may occur whenever you depress
the brake pedal.
Note that some driving conditions or
climates may cause a brake squeal
when you first apply (or lightly apply)
the brakes. This is normal and does
not indicate a problem with your
brakes.
To avoid costly brake repairs, do
not continue to drive with worn
brake pads.
Information
Always replace brake pads as com-
plete front or rear axle sets.
Parking Brake
Always set the parking brake before
leaving the vehicle. To apply the
parking brake:
Firmly depress the brake pedal.
Depress the parking brake pedal
down as far as possible.
i
NOTICE
OTL055012
To reduce the risk of SERIOUS
INJURY or DEATH, do not oper-
ate the parking brake while the
vehicle is moving except in an
emergency situation. It could
damage the brake system and
lead to an accident.
WARNING

5-23
Driving your vehicle
5
To release:
Firmly depress the brake pedal.
Depress the parking brake pedal
down and it will release automatical-
ly.
If the parking brake does not release
or does not release all the way, have
your vehicle checked by an author-
ized HYUNDAI dealer. Do not apply the accelerator
pedal while the parking brake is
engaged. If you depress the
accelerator pedal with the park-
ing brake engaged, warning will
sound. Damage to the parking
brake may occur.
Driving with the parking brake
on can overheat the braking sys-
tem and cause premature wear
or damage to brake parts. Make
sure the parking brake is
released and the Brake Warning
Light is off before driving.
NOTICE
OTL055014
Whenever leaving the vehicle
or parking, always come to a
complete stop and continue to
depress the brake pedal. Move
the shift lever into P (Park)
position, then apply the park-
ing brake, and place the igni-
tion switch in the LOCK/OFF
position.
Vehicles with the parking
brake not fully engaged are at
risk for moving inadvertently
and causing injury to yourself
or others.
NEVER allow anyone who is
unfamiliar with the vehicle to
touch the parking brake. If the
parking brake is released
unintentionally, serious injury
may occur.
Only release the parking
brake when you are seated
inside the vehicle with your
foot firmly on the brake pedal.
WARNING

5-24
Driving your vehicle
Check the Parking
Brake Warning Light
by placing the ignition
switch to the ON posi-
tion (do not start the
engine).
This light will be illuminated when the
parking brake is applied with the igni-
tion switch in the START or ON posi-
tion.
Before driving, be sure the parking
brake is released and the Brake
Warning Light is OFF.
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 pos-
sible, use extreme caution while
operating the vehicle and only con-
tinue to drive the vehicle until you
can reach a safe location.
Electronic Parking Brake (EPB)
Applying the parking brake
To apply the EPB
(Electronic Parking Brake):
1. Depress the brake pedal.
2. Pull up the EPB switch.
Make sure the Parking Brake
Warning Light comes on.
OTLE058015
To reduce the risk of SERIOUS
INJURY or DEATH, do not oper-
ate the EPB while the vehicle is
moving except in an emergency
situation. It could damage the
brake system and lead to an
accident.
WARNING