2012 Hyundai Genesis Coupe cooling

Driving your vehicle
44
5
E120200AUN
Use high quality ethylene glycol
coolant
Your vehicle is delivered with high quality
ethylene glycol coolant in the cooling
system. It is the only type of coolant that
should be used because it helps prevent
corrosion in the cooling system, lubri-
cates the water pump and prevents
freezing. Be sure to replace or replenish
your coolant in accordance with the
maintenance schedule in section 7.
Before winter, have your coolant tested to
assure that its freezing point is sufficient
for the temperatures anticipated during
the winter.
E120300AEN
Check battery and cables
Winter puts additional burdens on the
battery system. Visually inspect the bat-
tery and cables as described in section
7. The level of charge in your battery can
be checked by an authorized HYUNDAI
dealer or a service station.
E120400ABH
Change to "winter weight" oil if
necessary
In some climates it is recommended that
a lower viscosity "winter weight" oil be
used during cold weather. See section 8
for recommendations. If you aren't sure
what weight oil you should use, consult
an authorized HYUNDAI dealer.
E120500AUN
Check spark plugs and ignition
system
Inspect your spark plugs as described in
section 7 and replace them if necessary.
Also check all ignition wiring and compo-
nents to be sure they are not cracked,
worn or damaged in any way.
WARNING- Tire chains
The use of chains may adversely
affect vehicle handling.
Do not exceed 20 mph (30 km/h) or the chain manufacturer’s rec-
ommended speed limit, whichev-
er is lower.
Drive carefully and avoid bumps, holes, sharp turns, and other
road hazards, which may cause
the vehicle to bounce.
Avoid sharp turns or locked- wheel braking.
CAUTION
Chains that are the wrong size or improperly installed can damageyour vehicle's brake lines, sus-pension, body and wheels.
Stop driving and retighten the chains any time you hear themhitting the vehicle.

What to do in an emergency
66
IF THE ENGINE OVERHEATS
F050000ABK
If your temperature gauge indicates over-
heating, you experience a loss of power,
or hear loud pinging or knocking, the
engine is probably too hot. If this hap-
pens, you should:
1. Pull off the road and stop as soon as itis safe to do so.
2. Place the shift lever in P (automatic transmission) or neutral (manual trans-
mission) and set the parking brake. If
the air conditioning is on, turn it off.
3. If engine coolant is running out under the car or steam is coming out from
underneath the hood, stop the engine.
Do not open the hood until the coolant
has flow 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 oper-
ating. If the fan is not running, turn the
engine off. 4. Check to see if the water pump drive
belt is missing. If it is not missing,
check to see that it is tight. If the drive
belt seems to be satisfactory, check for
coolant leaking from the radiator,
hoses or under the car. (If the air con-
ditioning had been in use, it is normal
for cold water to be draining from it
when you stop).
5. If the water pump drive belt is broken or engine coolant is leaking out, stop
the engine immediately and call the
nearest authorized HYUNDAI dealer
for assistance. 6. If you cannot find the cause of the
overheating, wait until the engine tem-
perature has returned to normal. 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 overheating. If over-
heating happens again, call an author-
ized HYUNDAI dealer for assistance.
WARNING
While the engine is running, keep
hair, hands and clothing away from
moving parts such as the fan and
drive belts to prevent injury.
WARNING
Do not remove the radiator cap
when the engine is hot. This may
result in coolant to be blown out of
the opening and cause serious
burns.
CAUTION
Serious loss of coolant indicates
there is a leak in the cooling systemand this should be checked as soonas possible by an authorizedHYUNDAI dealer.

75
Maintenance
OWNER MAINTENANCE
G030000AEN
The following lists are vehicle checks and
inspections that should be performed by
the owner or an authorized HYUNDAI
dealer at the frequencies indicated to
help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer as
soon as possible.
These Owner Maintenance Checks are
generally not covered by warranties and
you may be charged for labor, parts and
lubricants used.Owner maintenance schedule
G030101AUN
When you stop for fuel:
Check the engine oil level.
Check the coolant level in coolantreservoir.
Check the windshield washer fluid level.
Look for low or under-inflated tires.
WARNING- Maintenance work
Performing maintenance work on
a vehicle can be dangerous. You
can be seriously injured while
performing some maintenance
procedures. If you lack sufficient
knowledge and experience or the
proper tools and equipment to do
the work, have it done by an
authorized HYUNDAI dealer.
Working under the hood with the engine running is dangerous. It
becomes even more dangerous
when you wear jewelry or loose
clothing. These can become
entangled in moving parts and
result in injury. Therefore, if you
must run the engine while work-
ing under the hood, make certain
that you remove all jewelry (espe-
cially rings, bracelets, watches,
and necklaces) and all neckties,
scarves, and similar loose cloth-
ing before getting near the
engine or cooling fans.
WARNING
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot coolant
and steam may blow out under
pressure. This could cause burns
or other serious injury.

Maintenance
14
7
G050600AUN
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Make sure
that a new vapor hose or fuel filler cap is
correctly replaced.
G050700AUN
Vacuum crankcase ventilation
hoses (if equipped)
Inspect the surface of hoses for evidence
of heat and/or mechanical damage. Hard
and brittle rubber, cracking, tears, cuts,
abrasions, and excessive swelling indi-
cate deterioration. Particular attention
should be paid to examine those hose
surfaces nearest to high heat sources,
such as the exhaust manifold.
Inspect the hose routing to assure that
the hoses do not come in contact with
any heat source, sharp edges or moving
component which might cause heat dam-
age or mechanical wear. Inspect all hose
connections, such as clamps and cou-
plings, to make sure they are secure, and
that no leaks are present. Hoses should
be replaced immediately if there is any
evidence of deterioration or damage.
G050800AEN
Air cleaner filter
A Genuine HYUNDAI air cleaner filter is
recommended when the filter is
replaced.
G050900AUN
Spark plugs
Make sure to install new spark plugs of
the correct heat range.
G051000AEN
Valve clearance
Inspect excessive valve noise and/or
engine vibration and adjust if necessary.
An authorized HYUNDAI dealer should
perform the operation.
G051100AUN
Cooling system
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
G051200AUN
Coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
G051300ABK
Manual transmission fluid
(if equipped)
Inspect the manual transmission fluid
according to the maintenance schedule.
G051400ABK
Automatic transmission fluid
(if equipped)
Inspect the automatic transmission fluid
according to the maintenance schedule.
G051500AUN
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.

717
Maintenance
G060200AEN-EU
Changing the engine oil and filter
Have engine oil and filter changed by an
authorized HYUNDAI dealer according to
the Maintenance Schedule at the begin-
ning of this section.
G070000AUN
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the factory.
Check the antifreeze protection and
coolant level at least once a year, at the
beginning of the winter season, and
before traveling to a colder climate.
Checking the coolant level
CALIFORNIA PROPOSI-
TION 65 WARNING
Engine oil contains chemicals
known to the State of California to
cause cancer, birth defects and
reproductive harm. Used engine oil
may cause irritation or cancer of
the skin if left in contact with the
skin for prolonged periods of time.
Always protect your skin by wash-
ing your hands thoroughly with
soap and warm water as soon as
possible after handling used oil.
ENGINE COOLANT
(Continued)
Turn the engine off and wait until it
cools down. Use extreme care
when removing 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 cool-
ing 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.
Even if the engine is not operat- ing, do not remove the radiator
cap or the drain plug while the
engine and radiator are hot. Hot
coolant and steam may still blow
out under pressure, causing seri-
ous injury.
WARNING
Removing radiator
cap
Never attempt to remove the radi-ator cap while the engine is oper-
ating or hot. Doing so might lead
to cooling system and engine
damage and could result in seri-
ous personal injury from escap-
ing hot coolant or steam.
(Continued)

Maintenance
18
7
Check the condition and connections of
all cooling system hoses and heater
hoses. Replace any swollen or deterio-
rated hoses.
The coolant level should be filled
between F and L marks on the side of the
coolant reservoir when the engine is cool. If the coolant level is low, add enough
specified coolant to provide protection
against freezing and corrosion. Bring the
level to F, but do not overfill. If frequent
additions are required, see an authorized
HYUNDAI dealer for a cooling system
inspection.
G070101AUN
Recommended engine coolant
Use only soft (de-mineralized) water in
the coolant mixture.
The engine in your vehicle has alu- minum engine parts and must be pro-
tected by an ethylene-glycol-based
coolant to prevent corrosion and freez-
ing.
DO NOT USE alcohol or methanol coolant or mix them with the specified
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.OBK079004
OBK079037
2.0L
3.8L
WARNING
The electric motor
(cooling fan) is con-
trolled by engine
coolant temperature,
refrigerant pressure
and vehicle speed. It may some-
times operate even when the
engine is not running. Use extreme
caution when working near the
blades of the cooling fan so that
you are not injured by a rotating fan
blades. As the engine coolant tem-
perature decreases, the electric
motor will automatically shut off.
This is a normal condition.

Maintenance
54
7
Engine compartment main fuse panel
Description Fuse rating Protected component
BATT 250A Fuse (STOP 15A, AUTO SHIFT LOCK 7.5A, P/CON (AUDIO 15A, MEMORY 10A), DR LOCK 10A, P/SEAT
(LH) 30A, Fog LP(RR) 10A)
BATT 1 30A Fuse (T/LID OPEN 15A, AMP 20A, HAZARD 10A, ESCL 25A, P/WDW (RH) 25A, P/WDW (LH) 25A, ESCL
10A, ESCL SW 10A)
ALT 150A Generator
ABS-1 40A ESC control module, ABS control module, Multipurpose check connector
ABS-2 40A ESC control module, ABS control module
BLOWER 40A Blower relay
HTD GLASS (RR) 40A HTD glass (RR) relay, Fuse (MIRROR HTD 7.5A)
COOLING FAN 50A Cooling fan (HI) relay, Cooling fan (LO) relay
IGN 1 30A ESCL (IGN1) relay, ESCL (ACC) relay, Ignition switch
IGN 2 40A ESCL (IGN2) relay, Start relay, Ignition switch
B/UP LP 10A B/UP LP relay
HORN 15A Horn relay
H/LP (LO) 20A H/LP (LO) relay, Fuse (H/LP LO RH 15A, H/LP LO LH 15A)
H/LP (HI) 20A H/LP (HI) relay, Instrument cluster, Head lamp LH/RH
VACUUM PUMP 15A Vacuum pump relay
A/CON COMP 10A A/Con relay
FOG LP (FR) 10A FOG LP (FR) relay, Instrument cluster
TAIL 15A TAIL relay, Fuse (TAIL (LH) 7.5A, TAIL (RH) 10A)
HTD GLASS (FR) 15A HTD glass (FR) relay
DRL, B/HORN 15A ICM Relay box (Burglar alarm horn relay), I/P junction box (DRL UNIT)
S/ROOF 20A Sunroof control module
H/LP LO RH 15A Head lamp RH, Manual head lamp leveling device actuator RH, Head lamp leveling device switch
H/LP LO LH 15A Head lamp LH, Manual head lamp leveling device actuator LH

755
Maintenance
Engine compartment sub fuse panel
Description Fuse ratingProtected component
B+50A Fuse (F/PUMP 20A, ECU-1 10A, ECU 30A)
ECU ECU main relay (ECU-2, SNSR-1, SNSR-2, INJ, IGN COIL)
ECU main relay (SNSR-1, SNSR-2, INJ, IGN COIL)
F/PUMP 20A F/PUMP relay
ECU-1 10A ECM, TCM
INJ 15A Injector, F/PUMP relay, ECM(G6DA)
IGN COIL 20A Ignition coil, Condenser
ECU-2 20A ECM(G4KF)
SNSR-1 10A Oxygen sensor (UP/DOWN), A/CON relay, Cooling fan (HI) relay, Cooling fan (LO) relay, ECM(G6DA), Mass
airflow sensor (G6DA)
SNSR-2 Oil control valve, Canister purge control solenoid valve, Camshaft position sensor, Crankshaft psition sensor,
WGT control solenoid valve, RCV control solenoid valve, Immobilizer module, Canister close valve
Oil control valve, Oil control valve(EXHAUST), ECM, Purge control solenoid valve, Immobilizer module,
Canister close valve
30A G4KF
G6DA
15A G4KF
G6DA