2012 Hyundai Sonata Hybrid cooling

Maintenance
24
7
COOLANT
Inverter coolant
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
Check the antifreeze protection and
coolant level everyday. If it is near or at MIN, add enough coolant
between MIN and MAX and check the
cooling system for air bleed at an author-
ized HYUNDAI dealer.
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 level per every day, at the begin-
ning of the winter season, and before
traveling to a colder climate.
Checking the coolant level
CAUTION
Do not confuse the cap of engine
coolant and inverter coolant. If not, the coolant circulation problem ofengine or Hybrid system may occur because the cap pressure is different.
CAUTION
When adding coolant, be carefulnot to overfill.
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.
The engine coolant level is influ- enced by hybrid system tempera-
ture. Before filling the engine
coolant, turn the hybrid vehicle off,
fill the engine coolant carefully.
(Continued)
OYFH071070N-1

725
Maintenance
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
distilled (deionized) water to provide pro-
tection 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.
OYFH071005N
(Continued)
Turn the engine off and wait until itcools 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
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.

753
Maintenance
Multi fuse
If the multi fuse is blown, it must be
removed as follows:
1. Turn off the engine.
2. Disconnect the negative battery cable.
3. Remove the fuse panel on the rightside in the engine compartment.
4. Remove the nuts shown in the picture above.
5. Replace the fuse with a new one of the same rating.
6. Reinstall in the reverse order of removal.
✽ ✽NOTICE
If the multi fuse is blown, consult an
authorized HYUNDAI dealer.
Oil pump cooling fuse/
Cooling fan fuse
If the oil pump cooling fuse or cooling fan
fuse is blown, it must be removed as fol-
lows:
1. Turn off the engine.
2. Disconnect the negative battery cable.
3. Remove the fuse panel on the right side in the engine compartment.
4. Replace the fuse with a new one of the same rating.
5. Reinstall in the reverse order of removal.
Sub-relay fuse
If the sub-relay fuse is blown, it must be
removed as follows:
1. Turn off the engine.
2. Disconnect the negative battery cable.
3. Replace the fuse with a new one of thesame rating.
4. Reinstall in the reverse order of removal.
OYFH071088NOYFH071089NOYFH071072N

I3
Index
Care Exterior care ··················\
··················\
··················\
········7-69
Interior care ··················\
··················\
··················\
·········7-73
Tire care··················\
··················\
··················\
···············7-37
Cargo weight ··················\
··················\
··················\
············5-43
Center console storage ··················\
··················\
·············4-105
Central door lock switch··················\
··················\
············4-12
Certification label ··················\
··················\
··················\
····5-41
Certification label ··················\
··················\
··················\
······8-7
Chains Tire chains ··················\
··················\
··················\
···········5-35
Changing tires (with spare tire) ··················\
··················\
·6-14
Checking tire inflation pressure··················\
··················\
·7-38
Child restraint system ··················\
··················\
················3-27 Lower anchor system ··················\
··················\
············3-33
Seat belt ··················\
··················\
··················\
···············3-29
Tether anchor system··················\
··················\
·············3-31
Child-protector rear door lock ··················\
··················\
···4-14
Climate control air filter··················\
··················\
···4-90, 7-30
Clock (Digital) ··················\
··················\
··················\
·······4-108
Clothes hanger ··················\
··················\
··················\
·······4-109
Combined instrument, see instrument cluster ···············4-40
Compact spare tire (with spare tire) ··················\
············6-14
Compact spare tire replacement ··················\
··················\
7-42
Components of the tire mobility kit ··················\
············6-23
Consumer information ··················\
··················\
·················8-9
Coolant ··················\
··················\
··················\
··················\
···7-24
Cooling fluid, see engine coolant ··················\
················7-24 Crankcase emission control system ··················\
·············7-75
Cruise control system ··················\
··················\
················5-24
Cup holder ··················\
··················\
··················\
·············4-106
Curtain air bag ··················\
··················\
··················\
·········3-53
Dashboard illumination, see instrument panel illumination·4-41
Dashboard, see instrument cluster ··················\
···············4-40
Defogging (Windshield) ··················\
··················\
··········4-102
Defogging logic (Windshield) ··················\
··················\
·4-104
Defroster (Rear window) ··················\
··················\
···········4-79
Defrosting (Windshield) ··················\
··················\
··········4-102
Digital clock··················\
··················\
··················\
···········4-108
Dimensions ··················\
··················\
··················\
················8-3
Display illumination, see instrument panel illumination ··4-41
Displays, see instrument cluster ··················\
··················\
4-40
Door locks ··················\
··················\
··················\
················4-11 Central door lock switch ··················\
··················\
·······4-12
Child-protector rear door lock ··················\
················4-14
Drinks holders, see cup holders··················\
·················4-10\
6
Driver's 3-point system with emergency locking retractor3-17
Driver's air bag··············\
··················\
··················\
·············3-48
Driving at night··················\
··················\
··················\
········5-31
Driving in flooded areas ··················\
··················\
············5-32
Driving in the rain ··················\
··················\
··················\
···5-32
D