wheel HYUNDAI TUCSON 2021 Service Manual

5-38
Driving your vehicle
Driving with wheels and tires with
different sizes may cause the ESC
system to malfunction. Before
replacing tires, make sure all four
tires and wheels are the same
size. Never drive the vehicle with
different sized tires and wheels
installed.
ESC OFF usage
When Driving
The ESC OFF mode should only be
used briefly to help free the vehicle if
stuck in snow or mud by temporarily
stopping operation of the ESC to
maintain wheel torque.
To turn ESC off while driving, press
the ESC OFF button while driving on
a flat road surface.To prevent damage to the trans-
mission:
Do not allow wheel(s) of one
axle to spin excessively while
the ESC, ABS, and parking brake
warning lights are displayed.
The repairs would not be cov-
ered by the vehicle warranty.
Reduce engine power and do
not spin the wheel(s) excessive-
ly while these lights are dis-
played.
When operating the vehicle on a
dynamometer, make sure the
ESC is turned off (ESC OFF light
illuminated).
Information
Turning the ESC off does not affect
ABS or standard brake system opera-
tion.
i
NOTICE
NOTICE
When the ESC is blinking, this
indicates the ESC is active:
Drive slowly and NEVER attempt
to accelerate. NEVER turn the
ESC off while the ESC indicator
light is blinking or you may lose
control of the vehicle resulting in
an accident.
WARNING

5-40
Driving your vehicle
VSM OFF condition
To cancel VSM operation, press the
ESC OFF button. ESC OFF indicator
light ( ) will illuminate.
To turn on VSM, press the ESC OFF
button again. The ESC OFF indicator
light will go out.
Driving with wheels and tires with dif-
ferent sizes may cause the ESC sys-
tem to malfunction. Before replacing
tires, make sure all four tires and
wheels are the same size. Never
drive the vehicle with different sized
tires and wheels installed.
Hill-Start Assist Control (HAC)
The Hill-Start Assist Control (HAC)
helps prevent the vehicle from rolling
backwards when starting a vehicle
from a stop on a hill. The system
operates the brakes automatically for
approximately 2 seconds and releas-
es the brake after 2 seconds or when
the accelerator pedal is depressed.
The HAC does not operate when
the shift lever is in P (Park) or N
(Neutral)
The HAC activates even though
the ESC (Electronic Stability
Control) is off but does not acti-
vate when the ESC has malfunc-
tioned.
Downhill Brake Control (DBC)
The Downhill Brake Control (DBC)
feature assists the driver to descend
down a steep hill without having to
depress the brake pedal.
NOTICE
If ESC indicator light ( ) or EPS
warning light ( ) stays on, your
vehicle may have a malfunction
with the VSM system. When the
warning light illuminates, have
your vehicle checked by an
authorized HYUNDAI dealer as
soon as possible.
WARNING
Always be ready to depress the
accelerator pedal when starting
off on a incline. The HAC activates
only for approximately 2 seconds.
WARNING
OTL055022
■Type A
OTLA055119
■Type B

5-43
Driving your vehicle
5
The All Wheel Drive (AWD) system
delivers engine torque to both the
front and rear wheels for extra trac-
tion.
AWD is useful when maximum trac-
tion is required on slippery, muddy,
wet, or snow-covered roads.Occasional off-road use such as
established unpaved roads and trails
are OK. It is always important that
the driver carefully reduces the
speed to a level that does not exceed
the safe operating speed for those
conditions.
A AL
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WH
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EE
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DR
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IV
VE
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(
(A
AW
WD
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(
(I
IF
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E
EQ
QU
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IP
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)
To reduce the risk of SERIOUS
INJURY or DEATH:
Do not drive in conditions that
exceed the vehicles intended
design such as challenging
off-road conditions.
Avoid high speeds when cor-
nering or turning.
Do not make quick steering
wheel movements, such as
sharp lane changes or fast,
sharp turns.
The risk of a rollover is great-
ly increased if you lose con-
trol of your vehicle at highway
speeds.
Loss of control often occurs if
two or more wheels drop off
the roadway and the driver
over steers to reenter the
roadway.
WARNING
OTLE058178

5-45
Driving your vehicle
5
AWD operation
If AWD warning light ( ) stays on the instrument cluster, your vehicle may have a malfunction with the
AWD system. When the AWD warning light ( ) illuminates have your vehicle checked by an authorized
HYUNDAI dealer as soon as possible.
WARNING
The main goal of AWD Lock mode is to allow a driver to max-
imize the vehicle’s traction under extreme driving conditions
such as unpaved off-road, sandy roads, and muddy roads.
AWD Lock mode is in operation only when a vehicle travels
at 37 mph (60 km/h) or less. When traveling at 37 mph (60
km/h) or faster, the mode will switch to AWD Auto.
When AWD Lock mode illuminates, the cluster does not dis-
play the front/rear wheel traction force distribution status.

AWD Auto. AWD AUTO
(AWD LOCK is
deactivated)
(not illuminated)
Transfer mode Selection button Indicator light Description
AWD Auto is used when driving on roads in normal condi-
tions, roads in urban areas, and on highways.
All wheels are in operation when a vehicle travels at a con-
stant speed. Required tractions applying on front and rear
wheels vary depending on road driving conditions and driv-
ing conditions, which will be automatically controlled by the
computing system.
When the cluster's AWD Auto display mode is selected, the
cluster displays the status of how four wheels’ traction forces
are distributed.
AWD LOCK
(illuminated)
All Wheel Drive (AWD) mode selection

5-46
Driving your vehicle
Maintain AWD Auto mode when
driving on roads in normal con-
ditions.
When driving under normal road
conditions (especially when cor-
nering) in AWD Lock mode, a
driver may find minor mechani-
cal vibration or noise, which is
extremely normal phenomenon,
not a malfunction. When AWD
Lock mode is released, such
noise or vibration will be imme-
diately gone.When driving on normal roads,
deactivate the AWD LOCK mode
by pushing the AWD LOCK button
(AWD LOCK indicator light goes
off). Driving on normal roads with
the AWD LOCK mode, especially,
when cornering may cause
mechanical noise or vibration. The
noise and vibration will disappear
when the AWD LOCK mode is
deactivated. Prolong driving with
the noise and vibration may dam-
age some parts of the power train.
Information
When the AWD LOCK mode is deac-
tivated, a sensation may be felt as the
driving power is delivered entirely to
the front wheels.
For safe AWD operation
Before driving
Make sure all passengers are
wearing seat belts.
Sit upright and closer to the steer-
ing wheel than usual. Adjust the
steering wheel to a position com-
fortable for you to drive.
Driving on snow-covered or icy
roads
Start off slowly by applying the
accelerator pedal gently.
Use snow tires or tire chains.
Keep sufficient distance between
your vehicle and the vehicle in front
of you.
Apply engine braking during decel-
eration by switching the gear shift
lever to Manual Shift Mode and
manually selecting a lower gear.
Avoid speeding, rapid acceleration,
sudden brake applications, and
sharp turns to prevent skids.
i
NOTICENOTICE

5-47
Driving your vehicle
5
Driving in sand or mud
Maintain slow and constant speed.
Use tire chains driving in mud if
necessary.
Keep sufficient distance between
your vehicle and the vehicle in front
of you.
Reduce vehicle speed and always
check the road condition.
Avoid speeding, rapid acceleration,
sudden brake applications, and
sharp turns to prevent getting
stuck.
Driving up or down hills
Driving uphill
- Before starting off, check if it is
possible to drive uphill.
- Drive as straight as possible.
Driving downhill
- Do not change gear while driving
downhill. Select gear before driv-
ing downhill.
- Drive slowly using engine braking
while driving downhill.
- Drive straight as possible.
OLMB053017
Exercise extreme caution when
driving up or down steep hills.
The vehicle may flip over
depending on the grade, the ter-
rain, and the trail conditions.
WARNING
When the vehicle is stuck in
snow, sand or mud, place a non-
slip material under the drive
wheels to provide traction OR
Slowly spin the wheels in for-
ward and reverse directions
which causes a rocking motion
that may free the vehicle.
However, avoid running the
engine continuously at high
rpm, doing so may damage the
AWD system.
CAUTION

5-48
Driving your vehicle
Driving through water
Try to avoid driving in deep stand-
ing water. It may stall your engine
and clog your exhaust system.
If you need to drive in water, stop
your vehicle, set the vehicle in
AWD LOCK mode and drive under
5 mph (8 km/h).
Do not change gear while driving in
water.
Additional driving conditions
Become familiar with the off-road
conditions before driving.
Always pay attention when driving
off-road and avoid dangerous
areas.
Drive slowly when driving in heavy
wind.
Reduce vehicle speed when cor-
nering. The center of gravity of
AWD vehicles is higher than con-
ventional 2WD vehicles, making
them more likely to roll over when
you rapidly turn corners.
Always drive slowly in water. If
you drive too fast, water may
get into the engine compart-
ment and wet the ignition sys-
tem causing your vehicle to
suddenly stop.
CAUTION
Do not drive across the contour
of steep hills. A slight change in
the wheel angle can destabilize
the vehicle, or a stable vehicle
may lose stability if the vehicle
stops its forward motion. Your
vehicle may roll over and lead to
a serious injury or death.
WARNING
OLMB053018

5-49
Driving your vehicle
5
Always hold the steering wheel
firmly when you are driving off-
road.
Emergency precautions
Tires
Do not use a tire and wheel package
with a different size and type from
the one originally installed on your
vehicle. It can affect the safety and
performance of your vehicle, which
could lead to steering failure or
rollover causing serious injury.
When replacing the tires, be sure to
equip all four tires with the tire and
wheel of the same size, type, tread,
brand and load-carrying capacity. If
you equip your vehicle with any
tire/wheel combination not recom-
mended by HYUNDAI for off-road
driving, you should not use these
tires for highway driving.
Towing
AWD vehicles must be towed with a
wheel lift and dollies or flatbed equip-
ment with all the wheels off the
ground.
For more details, refer to "Towing"
in chapter 6.
Dynamometer testing
A full-time AWD vehicle must be test-
ed on a special four wheel chassis
dynamometer.OTLE055003
Do not grab the inside of the
steering wheel when you are
driving off-road. You may hurt
your arm by a sudden steering
maneuver or from steering wheel
rebound due to an impact with
objects on the ground. You could
lose control of the steering wheel
which may lead to serious injury
or death.
WARNING
Never start or run the engine
while a full-time AWD vehicle is
raised on a jack. The vehicle can
slip or roll off of a jack causing
serious injury or death to you or
those nearby.
WARNING

5-50
Driving your vehicle
A full-time AWD vehicle should not
be tested on a 2WD roll tester. If a
2WD roll tester must be used, per-
form the following procedure:
1. Check the tire pressures recom-
mended for your vehicle.
2. Place the front wheels on the roll
tester for a speedometer test as
shown in the illustration.
3. Release the parking brake.
4. Place the rear wheels on the tem-
porary free roller as shown in the
illustration.
OTLE058117Roll Tester (Speedometer)
Temporary Free Roller
Never engage the parking
brake while performing the
test.
When the vehicle is lifted up,
do not operate the front and
rear wheel separately. All four
wheels should be operated.
CAUTION
Keep away from the front of the
vehicle while the vehicle is in
gear on the dynamometer. The
vehicle can jump forward and
cause serious injury or death.
WARNING

5-62
Driving your vehicle
- Early:
When this condition is selected, the
initial Forward Collision Warning is
activated earlier than normal. This
setting maximizes the amount of
distance between the vehicle
ahead before the initial warning
occurs.
Even though, 'Early' is selected if
the front vehicle suddenly stops the
initial warning activation time may
not seem fast.
If you feel the warning activates too
early, set the Forward Collision
Warning to "Normal".
Prerequisite for activation
The FCA system is on and ready
when FCA is selected on the LCD
display and when the following pre-
requisites are satisfied:
- The ESC (Electronic Stability
Control) on.
- Driving speed exceeds approxi-
mately 6 mph (10 km/h). (The FCA
is only activated within a certain
speed range.)
- The system detects a vehicle in
front, which may collide with your
vehicle. (The FCA may not be acti-
vated or may sound a warning
alarm in accordance with the driv-
ing situation or vehicle condition.)
Completely stop the vehicle
on a safe location before
operating the switch on the
steering wheel to activate/
deactivate the FCA system.
The FCA automatically acti-
vates upon placing the igni-
tion switch to the ON position.
The driver can deactivate the
FCA by canceling the system
setting on the LCD display.
If you cancel the ESC
(Electronic Stability Control)
when the FCA system is
turned on the FCA automati-
cally deactivates and the FCA
warning light illuminates.
When the ESC is canceled the
FCA cannot be activated on
the LCD display. The FCA
warning light will illuminate
which is normal.
WARNING