2016 Hyundai Sonata Hybrid Inverter

F18
Owner maintenance ...............................................7-5
Owner maintenance schedule ........................................7-6
Scheduled maintenance services.........................7-8
Explanation of scheduled maintenance
items.......................................................................7\
-24
Engine oil ..............................................................7-27
Checking the engine oil level .......................................7-27
Checking the engine oil and filter ..............................7-28
Engine coolant/inverter coolant .......................7-29
Checking the engine/inverter coolant level .............7-29
Changing engine coolant...............................................7-32
Hybrid starter & generator (HSG) belt.............7-32
Checking the hybrid starter &
generator (HSG) belt ......................................................7-32
Brake fluid ............................................................7-33
Checking the brake fluid level .....................................7-33
Washer fluid .........................................................7-34
Checking the washer fluid level ..................................7-34
Parking brake .......................................................7-34
Checking the parking brake .........................................7-34
Air cleaner ............................................................7-35
Filter replacement ...........................................................7-35
Climate control air filter .....................................7-37
Filter inspection ...............................................................7-37
Wiper blades .........................................................7-39
Blade inspection ..............................................................7-39
Blade replacement ..........................................................7-39
Battery...................................................................7-41
For best battery service................................................7-42
Battery recharging .........................................................7-42
Reset features .................................................................7-43
Tires and wheels ..................................................7-44
Tire care ........................................................................\
....7-44
Recommended cold tire inflation pressures.............7-45
Check tire inflation pressure........................................7-46
Tire rotation .....................................................................7-4\
7
Wheel alignment and tire balance ..............................7-48
Tire replacement .............................................................7-48
Wheel replacement .........................................................7-49
Tire traction ......................................................................7-\
49
Tire maintenance ............................................................7-50
Tire sidewall labeling ......................................................7-50
Tire terminology and definitions.................................7-54
All season tires ................................................................7-57
Summer tires ....................................................................7-57\
Snow tires ........................................................................\
.7-57
Radial-ply tires ................................................................7-58
Low aspect ratio tires ....................................................7-58
F18

1-6
Your vehicle at a glance
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The actual engine room in the vehicle may differ from the illustration.
OLFH014005K
1. Engine oil filler cap ...........................7-28
2. Engine oil dipstick .............................7-27
3. Radiator cap .....................................7-29
4. Engine coolant reservoir ...................7-30
5. Brake fluid reservoir ..........................7-33
6. Air cleaner.........................................7-35
7. Inverter coolant reservoir ..................7-31
8. Windshield washer fluid reservoir .....7-34
9. Fuse box ...........................................7-60

2-59
Safety system of your vehicle
2
Always be sure that you and all vehi-
cle occupants are seated properly
and wearing the seat belt properly for
the most effective protection by the
air bag and the seat belt.
The OCS may not function properly if
the passenger takes actions which
can affect the classification system.
These include:
Failing to sit in an upright position.
Leaning against the door or centerconsole.
Sitting towards the sides of the front of the seat.
Putting their legs on the dashboard or resting them on other locations
which reduce the passenger
weight on the front seat.
Wearing the seat belt improperly.
Reclining the seatback.
Wearing a thick cloth like ski wear or hip protection wear.
Putting an additional thick cushion on the seat.
Putting electrical devices (e.g. notebook, satellite radio) on the
seat with inverter charging.Condition and operation in the front passenger Occupant Classification System
Condition detected by the
occupant classification system
Indicator/Warning lightDevices
“PASSENGER
AIR BAG OFF” indicator lightSRS
warning lightFront passenger
air bag
1. Adult *1OffOffActivated
2. Infant *2or child restraint
system with 12 months old *3*4 OnOffDeactivated
3. Unoccupied OnOffDeactivated
4. Malfunction in the systemOffOnActivated
*1The system judges a person of adult size as an adult. When a smaller adult sits in the front
passenger seat, the system may recognize him/her as a child depending on his/her physique
and posture.
*
2Do not allow children to ride in the front passenger seat. When a larger child who has out- grown a child restraint system sits in the front passenger seat, the system may recognize
him/her as an adult depending upon his/her physique or sitting position.
*
3Never install a child restraint system on the front passenger seat.
*4The PASSENGER AIR BAG "OFF" indicator may turn on or off when a child above 12 months
to 12 years old (with or without child restraint system) sits in the front passenger seat. This is
a normal condition.

2-61
Safety system of your vehicle
2
Proper seated position for OCS
If the "PASSENGER AIR BAG OFF"
indicator is on when an adult is seat-
ed in the front passenger seat, place
the ignition switch in the LOCK/OFF
position and ask the passenger to sit
properly (sitting upright with the seat
back in an upright position, centered
on the seat cushion with their seat
belt on, legs comfortably extended
and their feet on the floor). Restart
the engine and have the person
remain in that position. This will allow
the system to detect the person and
to enable the passenger air bag. If
the "PASSENGER AIR BAG OFF"
indicator is still on, ask the passen-
ger to move to the rear seat.
B990A01O
Never allow an adult passenger
to ride in the front passenger
seat when the "PASSENGER AIR
BAG OFF" indicator is illuminat-
ed. During a collision, the air bag
will not inflate if the indicator is
illuminated. Have your passen-
ger reposition himself in the
seat. If the "PASSENGER AIR
BAG OFF" indicator remains illu-
minated after the passenger
repositions himself properly and
the vehicle is restarted, have the
passenger move to the rear seat
because the air bag will not
inflate.
WARNING (continued)
Do not put an electronic
device (ex. Laptop computer,
after market, navigation, satel-
lite audio, video game
machine, MP3, AC inverter,
etc.) in the front passenger
seatback pocket or on the
front passenger seat.
Do not place a sitting mat on
the front passenger seat.
Do not place any items under
the front passenger seat.
Do not place sharp objects on
the front passenger seat.
These may damage the occu-
pant detection system, if they
puncture the seat cushion.
Avoid spilling liquids on the
front seat; this may cause the
OCS not to work properly.
Keep the front seat dry at all
times.

3-85
Convenient features of your vehicle
3
Refuel to prevent Hybrid batterydamage
This warning message illuminates
when the fuel tank is nearly empty.
You should refill the fuel tank to pre-
vent hybrid battery damage.
Refill inverter coolant
This warning message illuminates
when the inverter coolant is nearly
empty.
You should refill the inverter coolant.
Stop vehicle and check brakes
This warning message illuminates
when a failure occurs in the brake
system.
In this case, park the vehicle in a safe
location and tow your vehicle to the
nearest authorized HYUNDAI dealer
and have the vehicle inspected.OLFH044241L/OLFH044242L
■ Type A ■Type B
OLFH044243L/OLFH044244L
■Type A ■Type B
OLFH044233L/OLFH044234L
■Type A ■Type B

6-8
What to do in an emergency7. If you cannot find the cause of theoverheating, wait until the engine
temperature has returned to nor-
mal. 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.
8. Proceed with caution, keeping alert for further signs of overheat-
ing. If overheating happens again,
call an authorized HYUNDAI deal-
er for assistance.
Serious loss of coolant indi-
cates a leak in the cooling sys-
tem and should be checked as
soon as possible by an author-
ized HYUNDAI dealer.
CAUTION
The electric motor for
the cooling fan may
continue to operate
or start up when the
engine is not running
and can cause serious injury.
Keep hands, clothing and tools
away from the rotating fan
blades of the cooling fan.
WARNING
Never remove the
radiator cap and/or
inverter coolant cap
or the drain plug
while the engine and
radiator are hot. Hot coolant
and steam may blow out under
pressure, causing serious
injury.
Turn the engine off and wait
until the engine cools down.
Use extreme care when remov-
ing the radiator cap and/or
inverter coolant 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 counterclock-
wise to remove it.
WARNING

7
Maintenance
7
Maintenance
Engine compartment .............................................7-3
Maintenance services ...........................................7-4
Owner's responsibility ......................................................7-4
Owner maintenance precautions ..................................7-4
Owner maintenance ...............................................7-5
Owner maintenance schedule ........................................7-6
Scheduled maintenance services.........................7-8
Explanation of scheduled maintenance
items.......................................................................7\
-24
Engine oil ..............................................................7-27
Checking the engine oil level .......................................7-27
Checking the engine oil and filter ..............................7-28
Engine coolant/inverter coolant .......................7-29
Checking the engine/inverter coolant level .............7-29
Changing engine coolant...............................................7-32
Hybrid starter & generator (HSG) belt.............7-32
Checking the hybrid starter &
generator (HSG) belt ......................................................7-32
Brake fluid ............................................................7-33
Checking the brake fluid level .....................................7-33
Washer fluid .........................................................7-34
Checking the washer fluid level ..................................7-34
Parking brake .......................................................7-34
Checking the parking brake .........................................7-34
Air cleaner ............................................................7-35
Filter replacement ...........................................................7-35
Climate control air filter .....................................7-37
Filter inspection ...............................................................7-37
Wiper blades .........................................................7-39
Blade inspection ..............................................................7-39
Blade replacement ..........................................................7-39
Battery...................................................................7-41
For best battery service................................................7-42
Battery recharging .........................................................7-42
Reset features .................................................................7-43
Tires and wheels ..................................................7-44
Tire care ........................................................................\
....7-44
Recommended cold tire inflation pressures.............7-45
Check tire inflation pressure........................................7-46
Tire rotation .....................................................................7-4\
7
Wheel alignment and tire balance ..............................7-48
Tire replacement .............................................................7-48
Wheel replacement .........................................................7-49
Tire traction ......................................................................7-\
49
Tire maintenance ............................................................7-50
Tire sidewall labeling ......................................................7-50
Tire terminology and definitions.................................7-54
All season tires ................................................................7-57
Summer tires ....................................................................7-57\
7

7-3
7
Maintenance
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1. Engine oil filler cap
2. Engine oil dipstick
3. Radiator cap
4. Engine coolant reservoir
5. Brake fluid reservoir
6. Air cleaner
7. Inverter coolant reservoir
8. Windshield washer fluid reservoir
9. Fuse box
The actual engine compartment the vehicle
may differ from the illustration.
OLFH014005K