2018 Hyundai Santa Fe engine

Maintenance
32
7
ENGINE COOLANT
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 concentration level at least
once a year, at the beginning of the
winter season, and before traveling
to a colder climate.
Checking the coolant level
(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 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.
Even if the engine is not oper- ating, do not remove the radi-
ator 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
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 temperature
decreases, the electric motor
will automatically shut off. This
is a normal condition.
If your vehicle is equipped with
GDI, the electric motor (cooling
fan) may operate until you dis-
connect the negative battery
cable.
WARNING
Removing radiator
cap
Never attempt to remove the radiator cap while the engine
is operating or hot. Doing so
might lead to cooling system
and engine damage and could
result in serious personal
injury from escaping hot
coolant or steam.
(Continued)

733
Maintenance
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 F (MAX) and L (MIN) marks
on the side of the coolant reservoir
when the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water. Bring the
level to F (MAX), but do not overfill.
If frequent coolant refill is required,
see an authorized HYUNDAI dealer
for a cooling system inspection.
Recommended engine coolant
When adding coolant, use onlydeionized water for your vehicle
and never mix hard water in the
coolant filled at the factory. An
improper coolant mixture can
result in serious 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. For mixture percentage, refer to the
following table.
ODM073006
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

Maintenance
34
7
Changing the coolant
Have coolant changed by an author-
ized HYUNDAI dealer according to
the Maintenance Schedule at the
beginning of this section.
WARNING
Radiator cap
Do not remove the radiator cap
when the engine and radiator
are hot. Scalding hot coolant
and steam may blow out under
pressure causing serious
injury.
CAUTION
Put a thick cloth or fabric
around the radiator cap beforerefilling the coolant in order toprevent the coolant from over-flowing into engine parts suchas generator.
WARNING - Coolant
Do not use radiator coolant or antifreeze in the washer fluid
reservoir.
Radiator coolant can severely obscure visibility when
sprayed on the windshield
and may cause loss of vehicle
control or damage to paint
and body trim.
ONCNMC2007

Maintenance
36
7
WARNING - Brake fluid
When changing and adding
brake fluid, handle it carefully.
Do not let it come in contact
with your eyes. If brake fluid
should come in contact with
your eyes, immediately flush
them with a large quantity of
fresh tap water. Have your eyes
examined by a doctor as soon
as possible.
CAUTION
Do not allow brake fluid to con-
tact the vehicle's body paint, aspaint damage will result. Brakefluid, which has been exposedto open air for an extended timeshould never be used as itsquality cannot be guaranteed. Itshould be disposed of properly.Do not put in the wrong type offluid. A few drops of mineral-based oil, such as engine oil, inyour brake system can damagebrake system parts.

739
Maintenance
Replace the filter according to the
Maintenance Schedule.
If the vehicle is operated in extreme-ly dusty or sandy areas, replace theelement more often than the usualrecommended intervals. (Refer to"Maintenance under severe usageconditions" in this section.)
CAUTION
Do not drive with the air clean- er removed; this will result inexcessive engine wear.
When removing the air cleaner filter, be careful that dust ordirt does not enter the airintake, or damage may result.
Use a HYUNDAI genuine part. Use of nongenuine part coulddamage the air flow sensor.

Maintenance
46
7
Battery recharging
Your vehicle has a maintenance-free,
calcium-based battery.
If the battery becomes discharged
in a short time (because, for exam-
ple, the headlights or interior lights
were left on while the vehicle was
not in use), recharge it by slow
charging (trickle) for 10 hours.
If the battery gradually discharges because of high electric load while
the vehicle is being used, recharge
it at 20-30A for two hours.(Continued)
When lifting a plastic-casedbattery, excessive pressure
on the case may cause battery
acid to leak, resulting in per-
sonal injury. Lift with a battery
carrier or with your hands on
opposite corners.
Never attempt to recharge the battery when the battery
cables are connected.
The electrical ignition system works with high voltage.
Never touch these compo-
nents with the engine running
or the ignition switched on.
Failure to follow the above
warnings can result in serious
bodily injury or death.CALIFORNIA PROPO-
SITION 65 WARNING
Battery posts, terminals, and
related accessories contain
lead and lead compounds,
chemicals known to the State of
California to cause cancer, birth
defects, and reproductive harm.
Batteries also contain other
chemicals known to the State of
California to cause cancer.
Wash hands after handling.
CAUTION
Always charge the battery fully to prevent battery casedamage in low temperaturearea.
If you connect unauthorized electronic devices to the bat-tery, the battery may dis-charge. Never use unautho-rized devices.

747
Maintenance
Reset items
Items should be reset after the bat-
tery has been discharged or the bat-
tery has been disconnected.
Auto up/down window (See section 4)
Sunroof (See section 4)
Trip computer (See section 4)
Climate control system (See section 4)
Clock (See section 4)
Audio (See section 4)(Continued)
Disconnect the battery charg- er in the following order.
1. Turn off the battery charger main switch.
2. Unhook the negative clamp from the negative battery
terminal.
3. Unhook the positive clamp from the positive battery
terminal.
Before performing mainte- nance or recharging the bat-
tery, turn off all accessories
and stop the engine.
The negative battery cable must be removed first and
installed last when the battery
is disconnected.WARNING- Rechargingbattery
When recharging the battery,
observe the following precau-
tions:
The battery must be removed
from the vehicle and placed in
an area with good ventilation.
Do not allow cigarettes, sparks, or flame near the battery.
Watch the battery during charging, and stop or reduce
the charging rate if the battery
cells begin gassing (boiling)
violently or if the temperature
of the electrolyte of any cell
exceeds 120°F (49°C).
Wear eye protection when checking the battery during
charging.
(Continued)

Maintenance
64
7
FUSES
A vehicle's electrical system is pro-
tected from electrical overload dam-
age by fuses.
This vehicle has 2 fuse panels, one
located in the driver's side panel bol-
ster, the other in the engine compart-
ment near the battery.
If any of your vehicle's lights, acces-
sories, or controls do not work, check
the appropriate circuit fuse. If a fuse
has blown, the element inside the
fuse will be melted.
If the electrical system does not
work, first check the driver's side
fuse panel.
Always replace a blown fuse with
one of the same rating.
Before replacing an open fuse, dis-
connect the negative battery cable.
If the replacement fuse blows, this
indicates an electrical problem. Avoid
using the system involved and imme-
diately consult an authorized
HYUNDAI dealer.
Three kinds of fuses are used: blade
type for lower amperage rating, car-tridge type, and multi fuse for higheramperage ratings.✽ ✽ NOTICE
The actual fuse/relay panel label
may differ from equipped items.
OLM079051N
Normal
Normal
■
Blade type
■ Cartridge type
■ Multi fuse Blown
Blown
Normal Blown
Normal Blown
WARNING - Fuse
replacement
Never replace a fuse with any-
thing but another fuse of the
same rating.
A higher capacity fuse could cause damage and possibly a
fire.
Never install a wire or alu- minum foil instead of the
proper fuse - even as a tem-
porary repair. It may cause
extensive wiring damage and
a possible fire.
CAUTION
Do not use a screwdriver or anyother metal object to removefuses because it may cause ashort circuit and damage thesystem.■ Battery fuse terminal