
2-55
Safety system of your vehicle
2
During a frontal collision, sensors will
detect the vehicle's deceleration. If
the rate of deceleration (measured in
g-force) is high enough the control
unit will inflate the front air bags.
The front air bags help protect the
driver and front passenger by
responding to frontal impacts in
which seat belts alone cannot pro-
vide adequate restraint. When need-
ed, the side air bags help provide
protection in the event of a side
impact or rollover.
Air bags are activated (able to
inflate if necessary) only when the
ignition switch is in the ON position.
Air bags inflate in the event of cer-
tain frontal or side collisions to help
protect the occupants from serious
physical injury.
There is no single speed at which
the air bags will inflate. Generally,
air bags are designed to inflate
based upon the severity of a colli-
sion and its direction, etc. These
two factors determine whether the
sensors produce an electronic
deployment/inflation signal. Air bag deployment depends on a
number of factors including vehicle
speed, angles of impact and the
density and stiffness of the vehicles
or objects which your vehicle
impacts during a collision. The
determining factors are not limited
to those mentioned above.
The front air bags will completely
inflate and deflate in an instant. It is
virtually impossible for you to see
the air bags inflate during an acci-
dent. It is much more likely that you
will simply see the deflated air bags
hanging out of their storage com-
partments after the collision.
In addition to inflating in certain
side collisions, vehicles equipped
with a rollover sensor, side and
curtain air bags will inflate if the
sensing system detects a rollover.
When a rollover is detected, side
and curtain air bags will remain
inflated longer to help provide pro-
tection from ejection, especially
when used in conjunction with the
seat belts. If your SRS malfunctions, the air
bag may not inflate properly dur-
ing an accident increasing the
risk of serious injury or death.
If any of the following condi-
tions occur, your SRS is mal-
functioning:
The light does not turn on for
approximately six seconds
when the ignition switch is in
the ON position.
The light remains illuminated
after approximately six sec-
onds.
The light comes on while the
vehicle is in motion.
The light blinks when the
engine is running.
Have an authorized HYUNDAI
dealer inspect the SRS as soon
as possible if any of these con-
ditions occur.
WARNING

2-56
Safety system of your vehicle
To help provide protection, the air
bags must inflate rapidly. The speed
of air bag inflation is a consequence
of extremely short time in which to
inflate the air bag between the
occupant and the vehicle structures
before the occupant impacts those
structures. This speed of inflation
reduces the risk of serious or life-
threatening injuries and is thus a
necessary part of air bag design.
However, the rapid air bag inflation
can also cause injuries which can
include facial abrasions, bruises
and broken bones because the
inflation speed also causes the air
bags to expand with a great deal of
force.
There are even circumstances
under which contact with the air
bag can cause fatal injuries, espe-
cially if the occupant is positioned
excessively close to the air bag.You can take steps to help reduce
the risk of being injured by an inflat-
ing air bag. The greatest risk is sitting
too close to the air bag. An air bag
needs about 10 inches (25 cm) of
space to inflate. NHTSA recom-
mends that drivers allow at least 10
inches (25 cm) between the center of
the steering wheel and the chest.To reduce the risk of serious
injury or death from an inflating
air bag, take the following pre-
cautions:
NEVER place a child restraint
in the front passenger seat.
Always properly restrain chil-
dren under age 13 in the rear
seats of the vehicle.
Adjust the front passenger's
and driver's seats as far to the
rear as possible while allow-
ing you to maintain full con-
trol of the vehicle.
Hold the steering wheel with
hands at the 9 o'clock and 3
o'clock positions.
Never place anything or any-
one between the air bag and
the seat occupant.
Do not allow the front passen-
ger to place their feet or legs
on the dashboard.
WARNING
![Hyundai Tucson 2019 Owners Manual 5-33
Driving your vehicle
5
Press brake pedal to deactivate
AUTO HOLD
If you did not apply the brake pedal
when you release the Auto Hold by
pressing the [AUTO HOLD] switch, a
warning will sound and a Hyundai Tucson 2019 Owners Manual 5-33
Driving your vehicle
5
Press brake pedal to deactivate
AUTO HOLD
If you did not apply the brake pedal
when you release the Auto Hold by
pressing the [AUTO HOLD] switch, a
warning will sound and a](/manual-img/35/19694/w960_19694-298.png)
5-33
Driving your vehicle
5
Press brake pedal to deactivate
AUTO HOLD
If you did not apply the brake pedal
when you release the Auto Hold by
pressing the [AUTO HOLD] switch, a
warning will sound and a message
will appear.
AUTO HOLD conditions not met.
Close door hood, and liftgate; fas-
ten seatbelt
When you press the [AUTO HOLD]
switch, if the driver's door and engine
hood, liftgate are not closed or the
driver's seat belt is unfastened, a
warning will sound and a message
will appear on the LCD display. At
this moment, press the [AUTO
HOLD] button after closing the dri-
ver's door and engine hood, liftgate
and fastening the seat belt.
Anti-lock Brake System (ABS)
OIK057080LOTL058235N
An Anti-Lock Braking System
(ABS) or an Electronic Stability
Control (ESC) system will not
prevent accidents due to
improper or dangerous driving
maneuvers. Even though vehi-
cle control is improved during
emergency braking, always
maintain a safe distance
between you and objects ahead
of you. Vehicle speeds should
always be reduced during
extreme road conditions. The
braking distance for cars
equipped with ABS or ESC may
be longer than for those without
these systems in the following
road conditions.
WARNING

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
LL
L
W
WH
HE
EE
EL
L
D
DR
RI
IV
VE
E
(
(A
AW
WD
D)
)
(
(I
IF
F
E
EQ
QU
UI
IP
PP
PE
ED
D)
)
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

5-49
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

6-7
What to do in an emergency
6
4. Check for coolant leaking from the
radiator, hoses or under the vehi-
cle. (If the air conditioning had
been in use, it is normal for cold
water to be draining from it when
you stop.)
5. If engine coolant is leaking out,
stop the engine immediately and
call the nearest authorized
HYUNDAI dealer for assistance.6. If you cannot find the cause of the
overheating, wait until the engine
temperature has returned to nor-
mal. Then, if coolant has been
lost, carefully add coolant to the
reservoir to bring the fluid level in
the reservoir up to the halfway
mark.
7. Proceed with caution, keeping
alert for further signs of overheat-
ing. If overheating happens again,
call an authorized HYUNDAI deal-
er for assistance. While the engine is
running, keep hands,
clothing and tools
away from the mov-
ing parts such as the
cooling fan and drive
belt to prevent seri-
ous injury.
WARNING
Serious loss of coolant indi-
cates a leak in the cooling sys-
tem and should be checked as
soon as possible by an author-
ized HYUNDAI dealer.
CAUTION
Your vehicle is
equipped with a pres-
surized coolant
reserve tank. NEVER
remove the coolant
reserve tank cap or the radiator
drain plug while the engine and
radiator are HOT. Hot coolant
and steam may blow out under
pressure, causing serious
injury.
Turn the engine off and wait
until the engine cools down.
Use extreme care when remov-
ing the coolant reserve tank
cap. Wrap a towel or thick rag
around it, and turn it counter-
clockwise slowly to release
some of the pressure from the
system. Step back while the
pressure is released.
When you are sure all the pres-
sure has been released, contin-
ue turning the cap counter-
clockwise to remove it.
WARNING

6-8
What to do in an emergency
T TI
IR
RE
E
P
PR
RE
ES
SS
SU
UR
RE
E
M
MO
ON
NI
IT
TO
OR
RI
IN
NG
G
S
SY
YS
ST
TE
EM
M
(
(T
TP
PM
MS
S)
)
(1) Low Tire Pressure / TPMS
Malfunction Indicator Lamp
(2) Low Tire Pressure / Tire
Pressure Monitor / TPMS
Malfunction Display (shown on
the cluster LCD display)
Check Tire Pressure
You can check the tire pressure in
the Assist mode on the cluster.
Refer to the "LCD Display
Mode" section in chapter 3.
Tire pressure is displayed after a
few minutes of driving after initial
engine start up.
If tire pressure is not displayed
when the vehicle is stopped, “Drive
to display” message will appear.
After driving, check the tire pres-
sure. The displayed tire pressure values
may differ from those measured
with a tire pressure gauge.
You can change the tire pressure
unit in the User Settings Mode on
the cluster.
- psi, kpa, bar (Refer to the "User
Settings Mode" section in
chapter 3).
OTLE058269
OTLE068003
OTLE058268

6-9
What to do in an emergency
6
Tire Pressure Monitoring
System
Each tire, including the spare (if pro-
vided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehi-
cle manufacturer on the vehicle plac-
ard or tire inflation pressure label. (If
your vehicle has tires of a different
size than the size indicated on the
vehicle placard or tire inflation pres-
sure label, you should determine the
proper tire inflation pressure for
those tires.)As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your
tires is significantly under-inflated.
Accordingly, when the low tire pres-
sure telltale illuminates, you should
stop and check your tires as soon as
possible, and inflate them to the
proper pressure. Driving on a signifi-
cantly under-inflated tire causes the
tire to overheat and can lead to tire
failure.
Under-inflation also reduces fuel effi-
ciency and tire tread life, and may
affect the vehicle's handling and
stopping ability.
Please note that the TPMS is not a
substitute for proper tire mainte-
nance, and it is the driver's responsi-
bility to maintain correct tire pres-
sure, even if under-inflation has not
reached the level to trigger illumina-
tion of the TPMS low tire pressure
telltale.Your vehicle has also been equipped
with a TPMS malfunction indicator to
indicate when the system is not
operating properly. The TPMS mal-
function indicator is combined with
the low tire pressure telltale. When
the system detects a malfunction,
the telltale will flash for approximate-
ly one minute and then remain con-
tinuously illuminated. This sequence
will continue upon subsequent vehi-
cle start-ups as long as the malfunc-
tion exists.
When the malfunction indicator is
illuminated, the system may not be
able to detect or signal low tire pres-
sure as intended. TPMS malfunc-
tions may occur for a variety of rea-
sons, including the installation of
replacement or alternate tires or
wheels on the vehicle that prevent
the TPMS from functioning properly.
Always check the TPMS malfunction
telltale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or alter-
nate tires and wheels allow the
TPMS to continue to function proper-
ly. Over-inflation or under-inflation
can reduce tire life, adversely
affect vehicle handling, and
lead to sudden tire failure that
may cause loss of vehicle con-
trol resulting in an accident.
WARNING