2018 GENESIS G90 check engine

6-8
What to do in an emergency
If your temperature gauge indicates
overheating, you experience a loss
of power, or hear loud pinging or
knocking, the engine may be over-
heating. If this happens, you should:
1. Pull off the road and stop as soon as it is safe to do so.
2. Place the shift lever in P (Park) and set the parking brake. If the air
conditioning is ON, turn it OFF.
3. If engine coolant is running out under the vehicle or steam is com-
ing out from the hood, stop the
engine. Do not open the hood until
the coolant has stopped running
or the steaming has stopped. If
there is no visible loss of engine
coolant and no steam, leave the
engine running and check to be
sure the engine cooling fan is
operating. If the fan is not running,
turn the engine off. 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 retailer
of Genesis Branded products for
assistance.
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While the engine is
running, keep hands,
clothing and tools
away from the moving
parts such as the
cooling fan and drive
belt to prevent seri-
ous injury.
WARNING

6-9
06
6. If you cannot find the cause of theoverheating, 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 retailer of
Genesis Branded products for
assistance.
Serious loss of coolant indicates a
leak in the cooling system and
should be checked as soon as
possible by an authorized retailer
of Genesis Branded products.
NOTICE
Your vehicle is
equipped with a pres-
surized coolant reserve
tank. NEVER remove
the radiator cap, drain
plug and heater hose connector
cap (refer to the below picture)
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.
■ ■ Heater hose connector cap
(for Tau 5.0 GDI engine)
WARNING
OHI076060L

6-10
What to do in an emergency
(1) Low Tire Pressure / TPMS Malfunction Indicator Lamp
(2) Low Tire Pressure / Tire Pressure Monitor /
TPMS Malfunction Display
(shown on the cluster LCD dis-
play)
Check Tire Pressure
You can check the tire pressure inthe Assist mode on the cluster.
Refer to the "LCD Modes" 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 "LCDModes" in chapter 3) .
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OHI066008
OHI046129N
OHI046160L

6-12
What to do in an emergency
Information
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
turned to the ON position or 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.
Low Tire Pressure
Telltale
Low Tire
Pressure LCD
Display with
Position
Indicator
When the tire pressure monitoring
system warning indicators are illumi-
nated and the warning message is
displayed on the cluster LCD display,
one or more of your tires is signifi-
cantly under-inflated. The LCD posi-
tion indicator will indicate which tire
is significantly under-inflated by illu-
minating the corresponding position
light.
If any of your tire pressures are indi-
cated as being low, immediately
reduce your speed, avoid hard cor-
nering, and anticipate increased
stopping distances. You should stop
and check your tires as soon as pos-
sible. Inflate the tires to the proper
pressure as indicated on the vehi-
cle’s placard or tire inflation pressure
label located on the driver's side cen-
ter pillar outer panel.
If you cannot reach a service station
or if the tire cannot hold the newly
added air, replace the low pressure
tire with the spare tire.
The Low Tire Pressure LCD position
indicator will remain on and the
TPMS Malfunction Indicator may
blink for one minute and then remain
illuminated until you have the low
pressure tire repaired and replaced
on the vehicle.
i
OHI046129N

6-26
What to do in an emergency
Always follow these emergency tow-
ing precautions:
Place the Engine Start/Stop button in the ACC position so the steering
wheel is not locked.
Place the shift lever in N (Neutral).
Release the parking brake.
Depress the brake pedal with more force than normal since you will
have reduced braking perform-
ance.
More steering effort will be required because the power steer-
ing system will be disabled.
Use a vehicle heavier than your own to tow your vehicle.
The drivers of both vehicles should communicate with each other fre-
quently.
Before emergency towing, check that the hook is not broken or dam-
aged.
Fasten the towing cable or chain securely to the hook.
Do not jerk the hook. Apply steady and even force. Use a towing cable or chain less
than 16 feet (5 m) long. Attach a
white or red cloth (about 12 inch
(30 cm) wide) in the middle of the
cable or chain for easy visibility.
Drive carefully so the towing cable or chain remains tight during tow-
ing.
Before towing, check the automat- ic transmission for fluid leaks under
your vehicle. If the automatic trans-
mission fluid is leaking, flatbed
equipment or a towing dolly must
be used.
OHI066024

Engine Compartment ...................................................................7-3
Maintenance Services .................................................................7-5
Owner's Responsibility ........................................................................\
.......7-5
Owner Maintenance Precautions ............................................................7-5
Owner Maintenance ....................................................................7-6
Owner Maintenance Schedule..................................................................7-7
Scheduled Maintenance Service................................................7-8
Normal Maintenance Schedule (Tau 5.0 GDI) .......................................7-9
Maintenance Under Severe Usage Conditions (Tau 5.0 GDI) .........7-12
Normal Maintenance Schedule (Lambda 3.3 Turbo-GDI) ................7-14
Maintenance Under Severe Usage Conditions (Lambda 3.3 Turbo-GDI) ........................................................................\
.7-17
Explanation of Scheduled Maintenance Items ......................7-19
Engine oil........................................................................\
.............7-22
Checking the Engine Oil Level................................................................7-22
Checking the Engine Oil and Filter .......................................................7-23
Engine Coolant ........................................................................\
...7-24
Checking the Engine Coolant Level ......................................................7-24
Changing Engine Coolant........................................................................\
.7-26
Brake Fluid ........................................................................\
..........7-27
Checking the Brake Fluid Level .............................................................7-27
Washer Fluid ........................................................................\
.......7-28
Checking the Washer Fluid Level ..........................................................7-28
Air Cleaner ........................................................................\
..........7-29
Filter Replacement........................................................................\
.............7-29
Climate Control Air Filter ..........................................................7-30
Filter Inspection ........................................................................\
.................7-30
Wiper Blades ........................................................................\
.......7-31
Blade Inspection ........................................................................\
.................7-31
Blade Replacement ........................................................................\
............7-31
Battery ........................................................................\
.................7-33
For Best Battery Service ........................................................................\
.7-34
Battery Recharging ........................................................................\
...........7-35
Reset features ........................................................................\
....................7-36
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Tires and Wheels .......................................................................7\
-37Tire Care ........................................................................\
..............................7-37
Recommended Cold Tire Inflation Pressures......................................7-38
Check Tire Inflation Pressure .................................................................7-39
Tire Rotation ........................................................................\
.......................7-39
Wheel Alignment and Tire Balance .......................................................7-40
Tire Replacement ........................................................................\
...............7-41
Wheel Replacement........................................................................\
...........7-42
Tire Traction........................................................................\
........................7-43
Tire Maintenance........................................................................\
...............7-43
Tire Sidewall Labeling ........................................................................\
.......7-43
Tire Terminology and Definitions ..........................................................7-47
All Season Tires ........................................................................\
.................7-50
Summer Tires ........................................................................\
......................7-50
Snow Tires ........................................................................\
...........................7-50
Radial-Ply Tires........................................................................\
..................7-51
Low Aspect Ratio Tires ........................................................................\
....7-51
Fuses ........................................................................\
....................7-53Instrument Panel Fuse Replacement ....................................................7-54
Engine Compartment Panel Fuse Replacement .................................7-55
Fuse/Relay Panel Description ................................................................7-58
Light bulbs........................................................................\
...........7-71
Headlamp, Parking Lamp, Turn Signal Lamp,
Daytime Running Light and Side Marker ...........................................7-71
Side Repeater Lamp Replacement.........................................................7-73
Rear Combination Light Bulb Replacement.........................................7-73
High Mounted Stop Light Replacement ...............................................7-73
License Plate Light Replacement replacement ..................................7-73
Interior Light Bulb Replacement ............................................................7-74
Appearance care ........................................................................\
7-75Exterior Care........................................................................\
.......................7-75
Interior Care ........................................................................\
........................7-80
Emission Control System...........................................................7-83Crankcase Emission Control System .....................................................7-83
Evaporative Emission Control System Including Onboard Refueling Vapor Recovery (ORVR) ......................................................7-83
Exhaust Emission Control System .........................................................7-84
California Perchlorate Notice ...................................................7-86
7

7-6
MaintenanceThe following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized retailer of Genesis Branded
products at the frequencies indicated
to help ensure safe, dependable
operation of your vehicle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged
for labor, parts and lubricants used.
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Performing maintenance work
on a vehicle can be dangerous.
If you lack sufficient knowledge
and experience or the proper
tools and equipment to do the
work, have it done by an author-
ized retailer of Genesis Branded
products.
ALWAYS follow these precau-
tions for performing mainte-
nance work:
• Park your vehicle on level
ground, move the shift lever
into the P (Park) position,
apply the parking brake, place
the Engine Start/Stop button
in the OFF position.
Block the tires (front and back) to prevent the vehicle
from moving.
Remove loose clothing or jew-
elry that can become entan-
gled in moving parts.
If you must run the engine during maintenance, do so
out doors or in an area with
plenty of ventilation.
Keep flames, sparks, or smok- ing materials away from the
battery and fuel-related parts.
WARNING
Touching metal parts
Do not touch metal parts
(including strut bars) while the
engine is operating or hot.
Doing so could result in serious
personal injury. Turn the engine
off and wait until the metal parts
cool down to perform mainte-
nance work on the vehicle.
WARNING