2021 HYUNDAI TUCSON HYBRID ECO mode

06
6-53
Driving in flooded areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel hub.
Drive through any water slowly. Allow
adequate stopping distance because
brake performance may be reduced.
After driving through water, dry the
brakes by gently applying them several
times while the vehicle is moving slowly.
Highway driving
Tires
Adjust the tire inflation, as specified.
Under-inflation may overheat or damage
the tires.
Do not install worn-out or damaged tires,
which may reduce traction or fail the
braking operation.
Information
Never over-inflate your tires above the
maximum inflation pressure, as specified
on your tires.
Fuel, engine coolant and engine oil
Driving at higher speeds on the highway
consumes more fuel and is less efficient
than driving at a slower, more moderate
speed. Maintain a moderate speed in
order to conserve fuel when driving on
the highway.
Be sure to check both the engine coolant
level and the engine oil before driving.
Drive belt
A loose or damaged drive belt may
overheat the engine.
Reducing the risk of a rollover
Your multi-purpose passenger vehicle is
defined as a Sports Utility Vehicle (SUV).
SUV’s have higher ground clearance
and a narrower track to make them
capable of performing in a wide variety
of off-road applications. The specific
design characteristics give them a higher
center of gravity than ordinary vehicles
making them more likely to roll over if
you make abrupt turns. Utility vehicles
have a significantly higher rollover rate
than other types of vehicles. Due to this
risk, driver and passengers are strongly
recommended to buckle their seat belts.
In a rollover crash, an unbelted person
is significantly more likely to die than a
person wearing a seat belt.
There are steps that a driver can make
to reduce the risk of a rollover. If at all
possible, avoid sharp turns or abrupt
maneuvers, do not load your vehicle
with heavy cargo on the roof, and never
modify your vehicle in any way.
WARNING
Utility vehicles have a significantly
higher rollover rate than other types of
vehicles. To prevent rollovers or loss of
control:
• Take corners at slower speeds than
you would with a passenger vehicle.
• Avoid sharp turns and abrupt
maneuvers.
• Do not modify your vehicle in any
way that you would raise the center
of gravity.
• Keep tires properly inflated.
• Do not carry heavy cargo on the roof.
WARNING
In a rollover crash, an unbelted person
is significantly more likely to die than a
person wearing a seat belt. Make sure
all passengers are wearing their seat
belts.

Driving your vehicle
6-60
If you decide to pull a trailer
Here are some important points if you
decide to pull a trailer:
• Consider using a sway control. You
can ask a trailer hitch dealer about
sway control.
• Do not do any towing with your
vehicle during its first 1,200 miles
(2,000 km) in order to allow the
engine to properly break in. Failure to
heed this caution may result in serious
engine or transmission damage.
• When towing a trailer, we
recommend that you consult an
authorized HYUNDAI dealer for
further information on additional
requirements such as a towing kit, etc.
• Always drive your vehicle at a
moderate speed (less than 60 mph
(100 km/h)) or posted towing speed
limit.
• On a long uphill grade, do not exceed
45 mph (70 km/h) or the posted
towing speed limit, whichever is
lower.
• Carefully observe the weight and load
limits provided in the following pages.
Trailer weight
Tongue Load Total Trailer Weight
OOSH069129L
What is the maximum safe weight of a
trailer? It should never weigh more than
the maximum trailer weight with trailer
brakes. But even that can be too heavy.
It depends on how you plan to use your
trailer. For example, speed, altitude,
road grades, outside temperature and
how often your vehicle is used to pull a
trailer are all important. The ideal trailer
weight can also depend on any special
equipment that you have on your vehicle.

Driver assistance system
7-74
To temporarily pause Cruise Control
OCN7060063
Cruise Control will be paused when:
• Depressing the brake pedal.
• Pushing the
button.
• Shifting the gear to N (Neutral).
• Decreasing vehicle speed to less than
approximately 20
mph (30 km/h

).
• ESC (Electronic Stability Control) is
operating.
• Downshifting to 2nd gear when in
Manual Shift mode.
The set speed will turn off but the Cruise
(
) indicator will stay on.
NOTICE
If Cruise Control pauses during a
situation that is not mentioned,
we recommend that the vehicle be
inspected by an authorized HYUNDAI
dealer.
To resume Cruise Control
OCN7060145
Push the +, - switch or button.
If you push the + switch up or - switch
down, vehicle speed will be set to the
current speed on the cluster.
If you push the
button, vehicle
speed will resume to the preset speed.
Vehicle speed must be above 20
mph
(30 km/h

) for the function to resume.
WARNING
Check the driving condition before
using the button. Driving speed
may sharply increase or decrease when
you press the
button.

Driver assistance system
7-80
Based on Drive Mode
Smart Cruise Control will change
acceleration based on the drive mode
selected from Drive Mode Integrated
Control system. Refer to the following
chart.
Drive mode Smart Cruise ControlCOMFORT Normal
ECO Slow
SPORT Fast
SMART
(if equipped) Normal
CUSTOM
(if equipped) Normal
Information
For more details on drive mode, refer to
“Drive Mode Integrated Control System”
section in chapter 6.
OTM070142N
Smart Cruise Control Reaction
With the engine on, select ‘Driver
assistance
→ SCC r

esponse’
fr
om
the settings menu t

o select the sensitivity of
vehicle speed when following the front
vehicle to maintain the set distance.
OTM070141N
Warning volume
With the engine on, select ‘Driver
assistance
→ W

arning
v
olume’
fr
om
the Settings menu t

o change the Warning
volume
‘High

’,
‘M
edium’
or ‘L
ow’
f
or
Smart Cruise Contr

ol.
If you change the Warning volume,
the Warning volume of other Driver
Assistance systems may change.
Information
If the engine is restarted, Warning volume
will maintain the last setting.

Emergency situations
8-4
if tHe engine will not start
• Be sure to shift the gear to N (Neutral)
or P (Park). The engine starts only
when the gear is in N (Neutral) or P
(Park).
• This vehicle does not have a regular
12V battery that needs periodic
replacement. It is lithium ion polymer
type integrated into the HEV high
voltage battery. The vehicle has a
12V battery protection system that
cuts 12V battery from vehicle draw
to prevent full discharge. If vehicle
will not start, first try pressing the
12V Battery Reset switch (left side of
the steering wheel near the fuel door
open switch) to reconnect the 12V
battery, but you must start vehicle
within 15 seconds of pressing the 12V
Battery Reset switch. After starting
the vehicle (
indicator ON ),
operate the vehicle safely outdoors in
ready mode stopped and/or drive it
for 30 minutes total to charge the 12V
battery fully.
• Check the fuel level and add fuel if
necessary.
If the vehicle still does not start, we
recommend that you call an authorized
HYUNDAI dealer for assistance.
NOTICE
Push or pull starting the vehicle may
cause the catalytic converter to
overload which can lead to damage to
the emission control system.

08
8-5
if tHe 12 volt Battery is discHar ged
Before Jump Starting
This vehicle does not have a regular 12V
battery that needs periodic replacement.
It is lithium ion polymer type integrated
into the HEV high voltage battery. The
vehicle has a 12V battery protection
system that cuts 12V battery from vehicle
draw to prevent full discharge.
Using the 12V battery reset switch
ONX4HQ010015
1. Press the 12V Battery Reset switch to
r
econnect the 12V battery.
2.
Start the v

ehicle within 15 seconds of
pressing the 12V Battery Reset switch.
3.
Aft

er starting the vehicle
(
indicator on), operate the vehicle
safely outdoors in ready mode
stopped and/or drive it for 30 minutes
total to charge the 12V battery fully. If you do not start the vehicle
immediately after pressing the 12V
Battery Reset switch, the power of 12V
battery is automatically disconnected
after few seconds to save the 12V battery
from additional discharge. If the 12V
battery is disconnected prior to starting
the vehicle, press the 12V Battery Reset
switch again and then immediately start
the vehicle as explained.
Repeated use of the 12V Battery Reset
switch without a sufficient engine
ON cycle (30 Min+) may cause over
discharge of the 12V battery, which will
prevent the vehicle from starting. If the
12V battery is over discharged to a point
that the reset does not work, try to jump-
start the vehicle.
Information
After starting the vehicle
( indicator on), the 12V battery is being
charged whether the engine is running or
not. Although there is no engine sound, it
is unnecessary to depress the accelerator
pedal.
The following items may need to be reset
after the battery has been discharged or
the battery has been disconnected.
See chapter 4 and 5 for:
• Power Windows
• Trip Computer
• Climate Control System
• Clock
• Audio System
• Sunroof

08
8 -7
ONX4HQ010015
7. Press the 12V Battery Reset switch.
8.
Start the engine o
f the assisting
vehicle and let it run for a few
minutes.
9.
Start y

our vehicle as soon as
possible. After starting the vehicle
(
indicator on), operate the vehicle
safely outdoors in ready mode
stopped and/or drive it for 30 minutes
total to charge the 12V battery fully.
If your vehicle will not start after a few
attempts, it probably requires servicing.
In this event please seek qualified
assistance. If the cause of your battery
discharging is not apparent, have your
vehicle checked by an authorized
HYUNDAI dealer.
Disconnect the jumper cables in the
exact reverse order you connected them:
1.
Disconnect the jumper cable from the
black, nega

tive (-) chassis ground of
your vehicle (4).
2.
Disconnect the other end o

f the
jumper cable from the black, negative
(-) battery/chassis ground of the
assisting vehicle (3).
3.
Disconnect the second jumper cable
from the r

ed, positive (+) battery/
jumper terminal of the assisting
vehicle (2).
4.
Disconnect the other end o

f the
jumper cable from the red, positive (+)
jumper terminal of your vehicle (1).
Information
The voltage range of the charger should be
13.3~14V and its current range should be
less than 60A. (13.8V is recommended).
CAUTION
• The use of an improper charger
with a voltage and current range
higher than specified may cause
overheating and damage to the 12V
battery.
• The use of an incorrect charger will
lead to a power shut-off to save the
12V battery. Stop using the incorrect
charger once the power of the
vehicle is shut off.
Information
An inappropriately disposed
battery can be harmful to
the environment and human
health. Dispose of the battery
according to your local law(s) or
regulations.
NOTICE
To prevent damage to your vehicle:
• Only use a 12-volt power supply
(battery or jumper system) to jump
start your vehicle.
• Do not attempt to jump start your
vehicle by push-starting.
CAUTION
Do not jump start another vehicle with
your hybrid vehicle. Jump starting
another vehicle will damage the
hybrid vehicle’s 12 volt battery (lithium
polymer type).

08
8-11
Tire pressure monitoring system
WARNING
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 control
resulting in an accident.
Each tire, including the spare (if
provided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the vehicle placard
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 pressure 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 pressure telltale
illuminates, you should stop and check
your tires as soon as possible, and inflate
them to the proper pressure. Driving on
a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure.
Under-inflation also reduces fuel
efficiency 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 maintenance,
and it is the driver’s responsibility to
maintain correct tire pressure, even if
under-inflation has not reached the level
to trigger illumination 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 malfunction
indicator is combined with the low
tire pressure telltale. When the system
detects a malfunction, the indicator will
flash for approximately one minute and
then remain continuously illuminated.
This sequence will continue upon
subsequent vehicle start-ups as long as
the malfunction exists.
When the malfunction indicator is
illuminated, the system may not be able
to detect or signal low tire pressure as
intended. TPMS malfunctions may occur
for a variety of reasons, 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 alternate tires and
wheels allow the TPMS to continue to
function properly.
NOTICE
If any of the below happens, we
recommend that you have the system
checked by an authorized HYUNDAI
dealer.
1.
The Lo
w Tire Pressure Telltale/TPMS
Malfunction Indicator does not
illuminate for 3 seconds when the
Engine Start/Stop button is pressed
to the ON position or the vehicle is in
the ready (
) mode.
2.
The TPMS Malfunction Indica
tor
remains illuminated after blinking for
approximately 1 minute.
3.
The Lo

w Tire Pressure Position
Telltale remains illuminated.