2015 Hyundai Sonata Hybrid Water pump

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Driving your vehicle
In the event of brake failure
If service brakes fail to operate while the
vehicle is in motion, you can make an
emergency stop with the parking brake.
The stopping distance, however, will be
much greater than normal.
✽ ✽NOTICE
1) When you apply the brake repeatedly,
you may hear the sound the electric
hydraulic pump or motor operating.
This is a normal condition.
2) The following types of pedal applica- tions may result in the brake pedal
feeling different, however it is normal
condition.
- When you apply the pedal quickly
- When you apply the pedal continu-ously and repeatedly
- While braking, when the ABS oper- ated
(Continued)
Wet brakes may impair the vehi-
cle’s ability to safely slow down;
the vehicle may also pull to one
side when the brakes are applied.
Applying the brakes lightly will
indicate whether they have been
affected in this way. Always test
your brakes in this fashion after
driving through deep water. To
dry the brakes, apply them lightly
while maintaining a safe forward
speed until brake performance
returns to normal.
Always confirm the position of the brake and accelerator pedal
before driving. If you don't check
the position of the accelerator
and brake pedal before driving,
you may depress the accelerator
instead of the brake pedal. It may
cause a serious accident.
Do not turn off the Hybrid system while going down a hill. The brake
booster may not work sufficiently
and the braking distance may be
longer.
(Continued)(Continued)
If the brake pedal does not returnto its normal position when
released, there may be a malfunc-
tion in the brake system. Take
your vehicle to an authorized
HYUNDAI dealer and have the
system checked.
To avoid applying the brakes do not get too close to the vehicle in
front of you and try to avoid
going down steep roads or sharp
corning if the power assisted
brakes are not functioning nor-
mally. The vehicle will stop but
the braking distance may be
longer.
WARNING- Parking brake
Applying the parking brake while
the vehicle is moving at normal
speeds can cause a sudden loss of
control of the vehicle. If you must
use the parking brake to stop the
vehicle, use great caution in apply-
ing the brake.
CAUTION
If the driver’s door is not firmlyclosed, the auxiliary battery may bedischarged because the brake con-troller remains in standby opera-tion. To prevent the battery frombeing discharged, ensure the door is fully closed.

Driving your vehicle
30
5
Hazardous driving conditions
When hazardous driving conditions are
encountered such as water, snow, ice,
mud, sand, or similar hazards, follow
these suggestions:
Drive cautiously and allow extra dis-
tance for braking.
Avoid sudden changes in braking or steering.
If stalled in snow, mud, or sand, use second gear. Accelerate slowly to
avoid spinning the drive wheels.
Use sand, rock salt, tire chains, or other non-slip material under the drive
wheels to provide traction when stalled
in ice, snow, or mud.
Rocking the vehicle
If it is necessary to rock the vehicle to
free it from snow, sand, or mud, first turn
the steering wheel right and left to clear
the area around your front wheels. Then,
shift back and forth between R (Reverse)
and any forward gear. Do not race the
engine, and spin the wheels as little as
possible. If you are still stuck after a few
tries, have the vehicle pulled out by a tow
vehicle to avoid engine overheating and
possible damage to the transaxle.
✽ ✽ NOTICE
The ESC system should be turned OFF
prior to rocking the vehicle.
SPECIAL DRIVING CONDITIONS
WARNING - ABS
Do not pump the brake pedal on a
vehicle equipped with ABS.
WARNING - Downshifting
Downshifting with an automatic
transaxle, while driving on slippery
surfaces can cause an accident.
The sudden change in tire speed
could cause the tires to skid. Be
careful when downshifting on slip-
pery surfaces.
CAUTION
Prolonged rocking may cause
engine over-heating, transaxle dam-age or failure, and tire damage.
WARNING- Spinning tires
Do not spin the wheels, especially
at speeds more than 35 mph (56
km/h). Spinning the wheels at high
speeds when the vehicle is station-
ary could cause a tire to overheat
which could result in tire damage
that may injure bystanders.

Driving your vehicle
36
5
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.
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.
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.
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
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IF THE ENGINE OVERHEATS
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 transaxle) 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
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 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.
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.
WARNING
Do not remove the radiator cap
when the engine is hot. This may
result in coolant being blown out of
the opening and cause serious
burns.

Maintenance
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7
Engine compartment sub fuse panel (Sub-relay box)
Engine compartment main fuse panel (Engien junction fuses)
Description Fuse rating Protected component
OPCU 80A OPCU Relay
C/FAN 60A C/FAN Relay
INVERTER 10A Low DC Converter, Hybrid Inverter BMS 10A BMS Control Module
AHB 10A AHB Control Module
EWP 10A Electrical Water Pump
Relay NO. Relay Name Type
RLY1 OPCU Relay PLUG MINI
RLY2 C/FAN Relay PLUG MINI
Relay No. Relay Name Type
E41 ACC Relay PLUG MICRO
E42 RR HTD Relay PLUG MICRO
E43 - PLUG MICRO
E44 - PLUG MICRO
E45 EWP Relay PLUG MICRO
E46 - PLUG MICRO
E47 Deicer Relay PLUG MICRO
E48 - PLUG MICRO
E49 IG1 Relay PLUG MICRO
E50 IG2 Relay PLUG MICRO
E51 Wiper Relay PLUG MICRO
E52 T/Turn Door Unlock Relay PLUG MICRO
E53 - PLUG MICRO
E54 Blower Relay PLUG MICRO
EMS BOX RLY.1 Horn Relay
PLUG MICRO
RLY.2 F/Pump Relay PLUG MICRO
RLY.3 ECU Relay PLUG MINI

H7
THE COMPONENTS OF HYBRID VEHICLE
OYFH024001N
1. Engine : 2.4L
2. Drive Motor : 35kW
3. Transmission : 6AT
4. Hybrid Starter Generator (HSG)
5. High voltage battery system6. Electric air-conditioning compressor
7. Electric Water Pump (EWP)
8. HPCU (Hybrid Power Control Unit)
9. Electric Oil Pump (EOP)
10. Brake system with hydraulic booster