2010 Hyundai Equus engine

Maintenance
28
7
Blade replacement When the wipers no longer clean ade-
quately, the blades may be worn or
cracked, and require replacement.
Front windshield wiper blade
For your convenience, move the wind-
shield wiper blades to the service posi-
tion as follows;
1. Turn the engine start/stop button off.
2. Within 20 seconds move the wiper
switch to the single wiping position
(MIST/ ) and hold the switch until the
wiper arm is in the fully up position. 3. Raise the wiper arm.
CAUTION
To prevent damage to the wiper
arms or other components, do notattempt to move the wipers manual-
ly.
CAUTION
The use of a non-specified wiperblade could result in wiper malfunc-tion and failure.
OVI079041OBH078042
CAUTION
Do not allow the wiper arm to fallagainst the windshield, since it may chip or crack the windshield.
/

731
Maintenance
Battery recharging
Your vehicle has a maintenance-free,
calcium-based battery.
If the battery becomes discharged in ashort time (because, for example, 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)
Never attempt to recharge thebattery when the battery cables are connected.
The electrical ignition system works with high voltage. Never
touch these components with theengine running or the ignition
switched on.
Failure to follow the above warn-
ings can result in serious bodily
injury or death.WARNING - Recharging
battery
When recharging the battery,
observe the following precautions:
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 charg- ing, and stop or reduce the charg-
ing rate if the battery cells begin
gassing (boiling) violently or if
the temperature of the electrolyte
of any cell exceeds 49°C (120°F).
Wear eye protection when check- ing the battery during charging.
Disconnect the battery charger 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.
CAUTION
When you don’t use the vehicle
for a long time in the low temper-
ature area, separate the batteryand keep it indoors.
The power trunk is not closedcompletely when the battery isseparated. When you separate the
battery from the vehicle, refer to"Power trunk" in section 4.
Always charge the battery fully to prevent the battery case dam-
aged in low temperature area.
WARNING
Separating the battery from the
vehicle should be done in an
authorized HUNDAI dealer.

Maintenance
32
7
Reset items
Items should be reset after the battery
has been discharged or the battery hasbeen disconnected.
Power trunk (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)
WARNING
Before performing maintenance or recharging the battery, turn off all accessories and stop the
engine.
The negative battery cable must be removed first and installed
last when the battery is discon-nected.
Operation related to the battery should be done in an authorized
HYUNDAI dealer.
CAUTION
Keep the battery away from water
or any liquid.
The battery is in the trunk, so you should be careful when you load
a container filled with liquid intothe trunk.
For your safety, use the authentic- ity by approved authorizedHYUNDAI dealer, when you
replace the battery.

743
Maintenance
FUSES
A vehicle’s electrical system is protected
from electrical overload damage by
fuses. This vehicle has 4 fuse panels, one locat-
ed in the driver’s side panel bolster,
another is in the front passenger’s side
panel bolster, the others are in the
engine compartment.
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 bemelted.
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.
If the replacement fuse blows, this indi-
cates an electrical problem. Avoid using
the system involved and immediately
consult an authorized HYUNDAI dealer.
Three kinds of fuses are used: blade type
for lower amperage rating, cartridge type,and fusible link for higher amperage rat-
ings.
1VQA4037
Normal
Normal
Blade type
Cartridge type
Fusible link Blown
Blown
Normal Blown
WARNING - Fuse replace-
ment
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 instead of the proper fuse - even as a temporary
repair. It may cause extensive
wiring damage and a possible fire.
CAUTION
Do not use a screwdriver or any
other metal object to remove fuses because it may cause a short circuitand damage the system.

Maintenance
44
7
Instrument panel fuse replace- ment
1. Turn the engine start/stop button to the
OFF position.
2. Open the fuse panel cover. 3. Pull the suspected fuse straight out.
Use the removal tool provided on the
front passenger’s side panel.
4. Check the removed fuse; replace it if it is blown.
Spare fuses are provided in the pas-
senger compartment panel fuse panel(or in the engine compartment fuse panel).
5. Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
If it fits loosely, consult an authorized
HYUNDAI dealer.
If you do not have a spare, use a fuse of the same rating from a circuit you may not need for operating the vehicle, such as the cigarette lighter fuse.
If the headlights or other electrical com-
ponents do not work and the fuses are
OK, check the fuse panel in the engine
compartment. If a fuse is blown, it mustbe replaced.
OBH078021
OBH078019
OBH078020
Driver’s side
Front passenger’s side
Front passenger’s side

745
Maintenance
Memory fuse
Your vehicle is equipped with a memory
fuse to prevent battery discharge if your
vehicle is parked without being operated
for prolonged periods. Use the following
procedures before parking the vehicle for
prolonged periods.
1. Turn the engine start/stop button off.
2. Turn off the headlights and tail lights.
3. Open the driver’s side panel cover andpull up the memory fuse.
✽✽ NOTICE
 If the memory fuse is pulled up from the fuse panel, the warning chime,
audio, clock and interior lamps, etc.,
will not operate. Some items must be
reset after replacement. Refer to
“Battery” in this section.
 Even though the memory fuse is
pulled up, the battery can still be dis-
charged by operation of the head-
lights or other electrical devices.
Engine compartment fuse replacement
OBH048020
OBH078023L
OBH078024L
3.8L
3.8L

Maintenance
46
7
1. Turn the engine start/stop button and
all other switches off.
2. Remove the fuse panel cover by pressing the tab and pulling up. 3. Check the removed fuse; replace it if it
is blown. To remove or insert the fuse, use the fuse puller in the engine com-
partment fuse panel.
4. Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
If it fits loosely, consult an authorized
HYUNDAI dealer.
Main fuse
If the main fuse is blown, it must be
removed as follows:
1. Remove the fuse panel on the rightside in the engine compartment.
2. Remove the nuts shown in the picture above.
3. Replace the fuse with a new one of the same rating.
4. Reinstall in the reverse order of removal.
✽✽ NOTICE
If the main fuse is blown, consult an
authorized HYUNDAI dealer.
CAUTION
After checking the fuse panel in the engine compartment, securely
install the fuse panel cover. If not,electrical failures may occur fromwater contact.OBH078025
OBH078023N
OBH078024N
4.6L
4.6L

747
Maintenance
✽✽NOTICE
Not all fuse panel descriptions in this
manual may be applicable to your vehi-
cle. It is accurate at the time of printing.
When you inspect the fuse panel in your
vehicle, refer to the fuse panel label.
Fuse/relay panel description
Inside the fuse/relay panel covers, you can find the fuse/relay label describing fuse/relay name and capacity.
Instrument panel fuse panel Engine compartment fuse panel
OBH078026/OBH078027/OBH078028L/OBH078028N/OBH078029L/OBH078029N
Driver’s side3.8L
4.6L
3.8L
4.6L
Front passenger’s side