2021 GENESIS G80 engine overheat

08
8-9
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 telltale 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, have
the system checked by an authorized
retailer of Genesis Branded products.
1. The Low 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 when the
engine is running.
2. The TPMS Malfunction Indicator
remains illuminated after blinking for
approximately 1 minute.
3. The Low Tire Pressure Position
Telltale remains illuminated.

09
9-19
WARNING
Never remove the engine coolant radiator cap, coolant
cap or the drain plug while
the engine and radiator are
hot. Hot coolant and steam
may blow out under pressure,
causing serious injury.
Turn the vehicle off and wait until
the engine cools down. Use extreme
care when removing the radiator cap,
coolant cap. Wrap a thick towel around
it, and turn it counterclockwise slowly
to the first stop. Step back while the
pressure is released from the cooling
system. When you are sure all the
pressure has been released, press down
on the cap, using a thick towel, and
continue turning counterclockwise to
remove it.
Information
The coolant level is influenced by the
engine temperature. Before checking or
refilling the coolant, turn the engine off.
WARNING
The electric motor for the cooling fan may continue to
operate or start up when the
engine is not running and can
cause serious injury. Keep
hands, clothing and tools away
from the rotating fan blades of
the cooling fan.
Always turn off the vehicle unless the
vehicle has to be inspected with the
engine on. Be cautious as the cooling
fan may operate if the negative (-)
battery terminal is not disconnected.
WARNING
Make sure the coolant cap is properly
closed after refilling coolant. Otherwise
the engine could be overheated while
driving.
„„Engine compartment front view
OOSH089010L
1. Check if the coolant cap label is
straight in front.
OJX1099046
2. Make sure that the tiny protrusions
inside the coolant cap is securely
interlocked.

Maintenance
9-28
Battery Usage
Recommendations
ORG3090021L
• Keep the battery securely mounted.
• Keep the battery top clean and dry.
• Keep the terminals and connections
clean, tight, and coated with
petroleum jelly or terminal grease.
• Rinse any spilled electrolyte from the
battery immediately with a solution of
water and baking soda.
• If the vehicle is not going to be used
for an extended time, disconnect the
battery cables.
Battery Recharging
By battery charger
Should your vehicle's battery become
discharged either run the engine for
at least 60 minutes driving or at idle.
Alternatively you may connect a fully
automatic regulated charger to the
engine compartment front jumper posts
or at the battery in the trunk.
CAUTION
Do not use a manual unregulated
charger it may cause the battery
to overheat and create a potential
hazard.
WARNING
Always follow these instructions when
recharging your vehicle’s battery to
avoid the risk of SERIOUS INJURY or
DEATH from explosions or acid burns:
• Before performing maintenance or
recharging the battery, turn off all
accessories and stop the engine.
• Keep all flames, sparks, or smoking
materials away from the battery.
• Always work outdoors or in an area
with plenty of ventilation.
• Wear eye protection when checking
the battery during charging.
• The battery must be removed from
the vehicle and placed in a well
ventilated area.
• Watch the battery during charging,
and stop or reduce the charging
rate if the battery cells begin boiling
violently.

I
I -7
H
Hazard Warning Flasher
........................................................................\
................8-2
Head-Up Display (HUD)
........................................................................\
............5-76
Head-Up Display Information ........................................................................\
. 5-76
Head-Up Display Settings
........................................................................\
.......5-76
Precautions While Using the Head-Up Display
..............................................5-77
High Beam Assist (HBA)
........................................................................\
............5-87
System Malfunction and Limitations
..............................................................5-88
System Operation
........................................................................\
....................5-88
System Setting
........................................................................\
.........................5-87
Highway Driving Assist (HDA)
........................................................................\
.7-99
System Malfunction and Limitations
............................................................7-108
System Operation
........................................................................\
..................7-101
System Settings
........................................................................\
.....................7-100
I
Idle Stop and Go (ISG)
........................................................................\
................6-43
Forced to Restart Engine
........................................................................\
.........6-46
ISG Malfunction ........................................................................\
...................... 6-46
ISG System Off
........................................................................\
.......................6-45
ISG System Operation ........................................................................\
............. 6-43
If the Engine Overheats
........................................................................\
.................8-7
If the Engine will not Start ........................................................................\
............. 8-3
If you have a Flat Tire (with Spare Tire, If equipped)
.........................................8-13
Changing Tires
........................................................................\
........................8-14
Jack and Tools
........................................................................\
.........................8-13
Jack Label ........................................................................\
................................ 8-19
Important Safety Precautions
........................................................................\
.........3-2
Air Bag Hazards
........................................................................\
........................3-2
Always Wear Your Seat Belt
........................................................................\
.....3-2
Control Your Speed
........................................................................\
...................3-2
Driver Distraction ........................................................................\
...................... 3-2
Keep Your Vehicle in Safe Condition
...............................................................3-2
Restrain All Children ........................................................................\
................. 3-2
In Case of an Emergency while Driving
................................................................8-2
If the Engine Stalls at a Crossroad or Crossing .................................................8-2
If the Engine Stalls While Driving
....................................................................8-2
If You Have a Flat Tire While Driving
..............................................................8-3