2017 GENESIS G90 Owner's Manual

7-31
07
Recommended engine coolant
When adding coolant, use onlydeionized 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
with phosphate 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.
For mixing percentage, refer to the
following table:
Information
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 temperature ranges of
-31°F and higher.
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Ambient
Temperature Mixture 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
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■ Lambda 3.3 T-GDI
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Never remove the
radiator 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 engine off and wait
until the engine cools down.
Use extreme care when remov-
ing the radiator 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.
(Continued)
WARNING

7-32
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.
Changing Engine Coolant
Have coolant changed by an authorized
Dealer of Genesis Brand Products
according to the Maintenance Schedule
at the beginning of this chapter.
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 generator.
NOTICE
The electric motor for
the cooling fan may
continue to operate
or start up when the
engine is not running
and can cause seri-
ous injury. Keep
hands, clothing and tools away
from the rotating fan blades of
the cooling fan.
WARNINGDo 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 accident.
Engine coolant may also cause
damage to paint and body trim.
WARNING
(Continued)
When you are sure all the pres-
sure has been released, press
down on the cap, using a thick
towel, and continue turning
counterclockwise to remove it.

7-33
07
Checking the Brake Fluid
Level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-
ination.
If the level is low, add the specified
brake fluid to the MAX level. The level
will fall with accumulated mileage.
This is a normal condition associated
with the wear of the brake linings. If
the fluid level is excessively low, have
the brake system checked by an
authorized Dealer of Genesis Brand
Products. Do not allow brake fluid to con-
tact the vehicle's body paint, as
paint damage will result.
Brake fluid, which has been exposed to open air for an
extended time should NEVER be
used as its quality cannot be
guaranteed. It should be dis-
posed of properly.
Do not use the wrong kind of brake fluid. A few drops of min-
eral based oil, such as engine
oil, in your brake system can
damage brake system parts.
Information
Use only the specified brake fluid
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
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If the brake system requires fre-
quent additions of fluid this could
indicate a leak in the brake sys-
tem. Have the vehicle inspected
by an authorized Dealer of
Genesis Brand Products.
WARNING
Do not allow brake fluid to come
in contact with your eyes. If
brake fluid comes in contact
with your eyes, flush your eyes
with clean water for at least 15
minutes and get immediate
medical attention.
WARNING

7-34
Maintenance
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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.
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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 wind-
shield and may cause loss of
vehicle control resulting in an
accident 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 harmful to
humans and animals.
Keep washer fluid away from children and animals.
WARNING

7-35
07
Filter Replacement
The air cleaner filter can be cleaned
for inspection using compressed air.
Do not attempt to wash or to rinse it,
as water will damage the filter.
If soiled, the air cleaner filter must be
replaced.
Visit an authorized Dealer of
Genesis Brand Products to replace
the air cleaner filter.
Replace the filter according to the
Maintenance Schedule
Information
If the vehicle is operated in extremely
dusty or sandy areas, replace the ele-
ment more often than the usual rec-
ommended intervals (refer to
"Maintenance Under Severe Usage
Conditions" in this chapter). Do not drive with the air cleaner
filter removed. This will result in
excessive engine wear.
When removing the air cleaner filter, be careful that dust or dirt
does not enter the air intake, or
damage may result.
Use Genesis Brand genuine parts, use of non-genuine parts
could damage the air flow sen-
sor.
NOTICE
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7-36
Maintenance
Filter Inspection
The climate control air filter should
be replaced according to the
Maintenance Schedule. If the vehicle
is operated in severely air-polluted
cities or on dusty rough roads for a
long period, it should be inspected
more frequently and replaced earlier.
When you replace the climate control
air filter, replace it performing the fol-
lowing procedure, and be careful to
avoid damaging other components.
1. Open the glove box and removethe support pin (1).
2. With the glove box open, remove the stoppers on both sides. 3. Remove the climate control air fil-
ter case while pressing the lock on
the left side of the cover.
4. Replace the climate control air fil- ter.
5. Reassemble in the reverse order of disassembly.
Install a new climate control air fil-
ter in the correct direction with the
arrow symbol ( ↓ ↓) facing down-
wards. Otherwise, the climate con-
trol effects may decrease, possi-
bly with a noise.
NOTICE
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7-37
07
Blade Inspection
Contamination of either the wind-
shield or the wiper blades with for-
eign matter can reduce the effective-
ness of the windshield wiper func-
tionality. Common sources of con-
tamination are insects, tree sap, and
hot wax treatments used by some
commercial car washes. If the blades
are not wiping properly, clean both
the window and the blades with a
clean cloth dampened with washer
fluid.
To prevent damage to the wiper
blades, arms or other compo-
nents, do not:
Use gasoline, kerosene, paintthinner, or other solvents on or
near them.
Attempt to move the wipers manually.
Use non-specified wiper blades.
Information
Commercial hot waxes applied by
automatic car washes have been
known to make the windshield diffi-
cult to clean.
Blade Replacement
When the wipers no longer clean
adequately, the blades may be worn
or cracked, and require replacement.
To prevent damage to the wiper
arms or other components, do not
attempt to move the wipers manu-
ally.
The use of a non-specified wiper
blade could result in wiper mal-
function and failure.
For your convenience, move the
windshield wiper blades to the serv-
ice position as follows;
After turning off the engine, move the
wiper switch to the single wiping
(MIST) position within 20 seconds
and hold the switch more than 2 sec-
onds until the wiper blade is in the
fully up position.
Do not allow the wiper arm to fall
against the windshield, since it
may chip or crack the windshield.
NOTICE
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7-38
Maintenance
1. Raise the wiper arm.
2. Open the wiper blade clip and slightly rotate the wiper blade
assembly to expose the plastic
locking clip. 3. Press the clip (1) and push up the
wiper arm (2).
4. Push down the wiper arm (3).
5. Install a blade assembly in the reverse order of removal.
6. Return the wiper arm on the wind- shield.
7. Place the Engine Start/Stop but- ton to the ON position. The wiper
arms will return to the normal
operating position.
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