engine coolant HYUNDAI GENESIS G80 2021 Owner's Manual

7-28
Maintenance
The electric motor for the cooling fan
is controlled by engine coolant tem-
perature, refrigerant pressure and
vehicle speed. As the engine coolant
temperature decreases, the electric
motor will automatically shut off. This
is a normal condition. If your vehicle
is equipped with GDI, the electric
motor for the cooling fan may begin
to operate at any time and continue
to operate until you disconnect the
negative battery cable.Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated hoses.
The coolant level should be filled
between the F and the L marks on
the side of the coolant reservoir
when the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water to bring
the level to the F mark, but do not
overfill. If frequent additions are
required, we recommend that you
see an authorized retailer of Genesis
Branded products for a cooling sys-
tem inspection.
Recommended engine coolant
When adding coolant, use only
deionized water, distilled water or
soft water for your vehicle and
never mix hard water in the coolant
filled at the factory.
An improper coolant mixture can
result in severe malfunction or
engine damage.
The engine in your vehicle has alu-
minum engine parts and must be
protected by an ethylene-glycol-
based coolant to prevent corrosion
and freezing.
Do not use alcohol or methanol
coolant or mix them with the spec-
ified coolant.
Do not use a solution that contains
more than 60% antifreeze or less
than 35% antifreeze, which would
reduce the effectiveness of the
solution. 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.WARNING
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7-29
7
Maintenance
For mixing percentage, refer to the
following table:
✽ ✽
NOTICE
If in doubt about the mix ratio, a
50% water and 50% antifreeze mix
is the easiest to mix together as it
will be the same quantity of each. It
is suitable to use for most tempera-
ture ranges of -31°F and higher.
Changing engine coolant
Have coolant changed by an author-
ized retailer of Genesis Branded
products according to the
Maintenance Schedule at the begin-
ning of this chapter.
Ambient
TemperatureMixture Percentage
(volume)
Antifreeze Water
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when
sprayed on the windshield
and may cause loss of vehicle
control resulting in an acci-
dent.
Engine coolant may also
cause damage to paint and
body trim.
WARNING
To prevent damage to engine
parts, put a thick towel around
the radiator cap before refilling
the coolant to prevent the
coolant from overflowing into
engine parts, such as the gener-
ator.
CAUTION

7-32
Maintenance
W WA
AS
SH
HE
ER
R
F
FL
LU
UI
ID
D
Checking the washer fluid
level
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
Checking the parking brake
Foot type
Check whether the stroke is within
specification when the parking brake
pedal is depressed with 44 lb (20 kg,
196 N) of force. Also, the parking
brake alone should securely hold the
vehicle on a fairly steep grade. If the
stroke is more or less than specified,
have the parking brake adjusted by
an authorized retailer of Genesis
Branded products.
Stroke : 3 notch To prevent serious injury or
death, take the following safety
precautions when using washer
fluid:
Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when
sprayed on the windshield
and may cause loss of vehicle
control resulting in an acci-
dent or damage to paint and
body trim.
Do not allow sparks or flame
to contact the washer fluid or
the washer fluid reservoir.
Washer fluid may contain
alcohol and can be flamma-
ble.
Do not drink washer fluid and
avoid contact with skin.
Washer fluid is poisonous to
humans and animals.
Keep washer fluid away from
children and animals.
CAUTION
ODH073007ODH053142
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AR
RK
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IN
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B
BR
RA
AK
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E

7-92
Maintenance
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms-up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control
system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
When the engine starts or fails to
start, excessive attempts to restart
the engine may cause damage to the
emission system.
Vehicle modifications
This vehicle should not be modi-
fied. Modification of your vehicle
could affect its performance, safety
or durability and may even violate
governmental safety and emis-
sions regulations.
In addition, damage or performance
problems resulting from any modifi-
cation may not be covered under
warranty.
If you use unauthorized electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine exhaust (carbon monox-
ide) precautions
Carbon monoxide can be present
with other exhaust fumes. If you
smell exhaust fumes of any kind in
your vehicle, drive with all the win-
dows fully open. Have your vehicle
checked and repaired immediately.
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.
WARNING

Specifications, Consumer information and Reporting safety defects
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality.
The correct lubricants also help promote engine efficiency that results in improved fuel economy.
R RE
EC
CO
OM
MM
ME
EN
ND
DE
ED
D
L
LU
UB
BR
RI
IC
CA
AN
NT
TS
S
A
AN
ND
D
C
CA
AP
PA
AC
CI
IT
TI
IE
ES
S
*1Refer to the recommended SAE viscosity numbers on the next page.
*2Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reduc-
ing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in
a year's time, they can offer significant cost and energy savings.
*
3If the ACEA A5 engine oil is not available in your country, you are able to use ACEA B5 or API SN & ILSAC GF-5
*4If the ACEA A5 engine oil is not available in your country, you are able to use API SM & ILSAC GF-4 (or above) or API SL & ILSAC GF-3.
*5If the API SM & ILSAC GF-4 engine oil is not available in your country, you are able to use API SL & ILSAC GF-3.
LubricantVolume Classification
Engine oil *
1*2
(drain and refill)
Recommends3.3 T-GDI7.29 US qt. (6.9l)ACEA A5 *
3
3.8 GDI ACEA A5 *4
5.0 GDI2WD8.45 US qt. (8.0l)API SM & ILSAC GF-4 (or above) *5
AWD9.72 US qt. (9.2l)
Automatic transmission fluid
9.72 US qt. (9.2l)GS ATF SP-IV-RR,
Genesis/Hyundai ATF SP-IV-RR
Coolant3.3 T-GDI
10.4 US qt. (9.8l)
Mixture of antifreeze and water (Ethylene glycol
base coolant for aluminum radiator) 3.8 GDI
8.88 US qt. (8.4l)
5.0 GDI2WD
12.57 US qt. (11.9l)
AWD
11.94 US qt. (11.3l)
Brake fluid
0.74~0.85 US qt. (0.7~0.8 l)
FMVSS116 DOT-3 or DOT-4
Front (AWD)/rear differential
oilFront (AWD)0.74 US qt. (0.7l)HYPOID GEAR OIL API GL-5 75W/85
(SK HK SYN GEAR OIL 75W/85 or equivalent)
Rear1.48 US qt. (1.4l)
Transfer case oil (AWD)0.65 US qt. (0.62l)SHELL TF0870B
Fuel20.34 US gal. (77l)Unleaded gasoline
8-6

I-4
Driver Attention Alert System (DAA) ..........................5-104
Resetting the system .................................................5-106
System malfunction ..................................................5-106
System setting and activation ...................................5-104
System standby.........................................................5-106
Driver position memory system .....................................3-16
Easy access function ..................................................3-18
Resetting the driver's seat memory system ................3-17
Storing positions into memory ...................................3-16
Emission control system .................................................7-91
Engine ...............................................................................8-2
Engine compartment..................................................1-7, 7-3
Engine coolant ................................................................7-27
Changing engine coolant ............................................7-29
Checking the engine coolant level .............................7-27
Engine number ..................................................................8-9
Engine oil ........................................................................7-24
Checking the engine oil and filter ..............................7-25
Checking the engine oil level .....................................7-24
Explanation of scheduled maintenance items.................7-21
Exterior features..............................................................3-43
Fuel filler door............................................................3-54
Hood ...........................................................................3-43
Smart trunk .................................................................3-51
Trunk ..........................................................................3-44
Exterior overview ......................................................1-2, 1-3Fuses ...............................................................................7-59
Engine compartment panel fuse replacement ............7-62
Fuse/Relay panel description .....................................7-64
Instrument panel fuse replacement.............................7-60
Genesis Adaptive Control Suspension............................5-53
Dynamic stability damping control (DSDC) .............5-53
Electronic control suspension (ECS) .........................5-53
Gross vehicle weight.........................................................8-5
Hazard warning flasher .....................................................6-2
Head Up Display (HUD) ..............................................3-103
Index
E
F
H
G