2015 Hyundai Sonata Hybrid engine coolant

Maintenance
26
7
Recommended engine and inverter
coolant
When adding coolant, use only deion- ized water or soft water for your vehicle
and never mix hard water in the
coolant filled at the factory. An improp-
er coolant mixture can result in serious
malfunction or engine damage.
The engine in your vehicle has aluminum engine parts and must be protected by
an ethylene-glycol-based coolant to pre-
vent corrosion and freezing.
DO NOT USE alcohol or methanol coolant or mix them with the specified
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 fol-
lowing table.
Changing the coolant
Have engine and inverter coolant
changed by an authorized HYUNDAI
dealer according to the Maintenance
Schedule at the beginning of this section.
WARNING - Radiator cap &
Inverter coolant cap
Do not remove the radiator cap and
/or inverter coolant cap when the
engine and radiator are hot.
Scalding hot coolant and steam
may blow out under pressure caus-
ing serious injury.
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.
CAUTION
Put a thick cloth or fabric aroundthe radiator and/or inverter cap before refilling the coolant in orderto prevent the coolant from over- flowing into engine parts such asthe generator.
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Ambient
Temperature Mixture Percentage (volume)
Antifreeze Water
OYFH071006N-1
OYFH071070N-1
Radiator cap
Inverter coolant cap

777
Maintenance
EMISSION CONTROL SYSTEM
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty infor-
mation contained in the Owner’s
Handbook & Warranty Information book-
let in your vehicle.
Your vehicle is equipped with an emis-
sion control system to meet all applicable
emission regulations.
There are three emission control sys-
tems, as follows.
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to assure the proper function of
the emission control systems, it is rec-
ommended that you have your car
inspected and maintained by an author-
ized HYUNDAI dealer in accordance with
the maintenance schedule in this manu-
al.Caution for the Inspection and
Maintenance Test (With Electronic
Stability Control (ESC) system)
To prevent the vehicle from misfir-
ing during dynamometer testing,
turn the Electronic Stability Control
(ESC) system off by pressing the
ESC switch.
After dynamometer testing is com- pleted, turn the ESC system back on
by pressing the ESC switch again.
1. Crankcase emission control system
The positive crankcase ventilation sys-
tem is employed to prevent air pollution
caused by blow-by gases being emitted
from the crankcase. This system supplies
fresh filtered air to the crankcase through
the air intake hose. Inside the crankcase,
the fresh air mixes with blow-by gases,
which then pass through the PCV valve
into the induction system.
2. Evaporative emission control(including ORVR: Onboard
Refueling Vapor Recovery)
system
The Evaporative Emission Control
System is designed to prevent fuel vapors
from escaping into the atmosphere.
(The ORVR system is designed to allow
the vapors from the fuel tank to be
loaded into a canister while refueling at
the gas station, preventing the escape of
fuel vapors into the atmosphere.)
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in the
canister are drawn into the surge tank
through the purge control solenoid valve.
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is con-
trolled by the Engine Control Module
(ECM); when the engine coolant tempera-
ture is low during idling, the PCSV closes
so that evaporated fuel is not taken into
the engine. After the engine warms-up
during ordinary driving, the PCSV opens
to introduce evaporated fuel to the engine.

85
Specifications, Consumer information, Reporting safety defects
RECOMMENDED LUBRICANTS AND CAPACITIES
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality.
The correct lubricants also help promote engine efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
*1Refer to the recommended SAE viscosity numbers on the next page.
*2Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econo my by reducing
the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year’s
time, they can offer significant cost and energy savings.
*
3Yellow engine oil dipstick
*4Red engine oil dipstick
*5If the API service SM engine oil is not available in your country, you are able to use API service SL.
LubricantVolumeClassification
Engine oil *1 *2 (drain and refill)
Recommends4.86 US qt. (4.6 l)*3
API Service SM*5,
ILSAC GF-4 or above
5.07 US qt. (4.8 l)*4
Automatic transaxle fluid6.97 US qt. (6.6 l)
MICHANG ATF SP-IV, SK ATF SP-IV
NOCA ATF SP-IV, HYUNDAI genuine ATF SP4-M or other brands meeting the above specification approved by Hyundai Motor Co.,
Coolant 6.97~7.29 US qt. (6.6~6.9 l)Mixture of antifreeze and water (Ethylene glycol base coolant for aluminum radiator)
Inverter coolant2.39 US qt. (2.26 l)Mixture of antifreeze and water (Ethylene glycol basecoolant for aluminum radiator)
Brake fluid0.7~0.8 US qt. (0.7~0.8 l)FMVSS116 DOT-3 or DOT-4
Fuel17.2 US gal. (65 l)Unleaded gasoline

I3
Index
Brakes fluid··················\
··················\
·············· ·7-27
Bulb replacement ··················\
··················\
······· ·7-61
Bulb wattage ··················\
··················\
··············8-3
Button start/stop, see engine start/stop button ············5-5
California perchlorate notice ··················\
·············7-80
Camera (Rear view) ··················\
··················\
···· ·4-70
Capacities (Lubricants) ··················\
··················\
··8-5
Capacity/Weight ··················\
··················\
··········8-2
Care Exterior care ··················\
··················\
········· ·7-71
Interior care ··················\
··················\
·········· ·7-75
Tire care ··················\
··················\
·············· ·7-37
Cargo weight ··················\
··················\
············ ·5-43
Center console storage ··················\
··················\
·4-119
Central door lock switch ··················\
················· ·4-12
Certification label ··················\
··················\
······· ·5-41
Certification label ··················\
··················\
·········8-7
Chains Tire chains ··················\
··················\
············ ·5-35
Changing tires (with spare tire) ··················\
··········6-15
Checking tire inflation pressure ··················\
·········7-38
Child restraint system ··················\
··················\
·· ·3-27
Lower anchor system ··················\
················· ·3-33
Seat belt ··················\
··················\
··············· ·3-29
Tether anchor system ··················\
················· ·3-31Child-protector rear door lock
··················\
···········4-14
Climate control air filter ············4-93, 4-104, 4-115, 7-30
Clock (Digital) ··················\
··················\
········· ·4-123
Clothes hanger ··················\
··················\
········· ·4-123
Combined instrument, see instrument cluster ···········4-40
Compact spare tire (with spare tire) ··················\
·····6-15
Compact spare tire replacement ··················\
·········7-42
Components of the tire mobility kit ··················\
·····6-24
Consumer information ··················\
··················\
··· ·8-9
Coolant ··················\
··················\
··················\
· ·7-24
Cooling fluid, see engine coolant ··················\
·······7-24
Crankcase emission control system ··················\
·····7-77
Cruise control system ··················\
··················\
·· ·5-24
Cup holder ··················\
··················\
··············4-121
Curtain air bag ··················\
··················\
·········· ·3-53
Dashboard illumination,
see instrument panel illumination··················\
···· ·4-41
Dashboard, see instrument cluster ··················\
·······4-40
Defogging (Windshield) ··················\
················ ·4-116
Defogging logic (Windshield) ··················\
··········4-117
Defroster (Rear window) ··················\
················ ·4-81
Defrosting (Windshield) ··················\
················ ·4-116
Digital clock ··················\
··················\
··········· ·4-123
Dimensions ··················\
··················\
·················8-3
Display illumination, see instrument panel illumination · 4-41
C
D

Index
4I
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 ··················\
········4-121
Driver's 3-point system with emergency
locking retractor··················\
··················\
······ ·3-18
Driver's air bag ··················\
··················\
·········· ·3-48
Driving at night ··················\
··················\
········· ·5-31
Driving in flooded areas ··················\
················· ·5-32
Driving in the rain ··················\
··················\
······ ·5-32
Driving off-road ··················\
··················\
········· ·5-32
ECO GUIDE gauge ··················\
··················\
···· ·4-43
Economical operation ··················\
··················\
·· ·5-28
Electric chromic mirror (ECM) with HomeLink system· ·4-31
Electric power steering ··················\
··················\
· ·4-29
Electronic stability control (ESC) ··················\
·······5-19
Emergency starting ··················\
··················\
········6-6
Jump starting ··················\
··················\
···········6-6
Push starting ··················\
··················\
············6-7
Emergency while driving ··················\
··················\
6-2
Emission control system ··················\
················· ·7-77
Crankcase emission control system ··················\
··7-77
Evaporative emission control system ··················7-77
Exhaust emission control system · · · · · · · ···············7-78 Engine · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
··················8-2
Engine compartment ··················\
················· ·2-4, 7-2
Engine compartment fuse ··················\
··············· ·7-53
Engine coolant ··················\
··················\
·········· ·7-24
Engine number ··················\
··················\
··········· ·8-7
Engine oil ··················\
··················\
·················7-22
Engine overheats ··················\
··················\
········· ·6-8
Engine start/stop button ··················\
··················\
· ·5-5
Engine temperature gauge ··················\
··············· ·4-42
Engine will not start ··················\
··················\
····· ·6-5
Evaporative emission control system ··················\
···7-77
Exhaust emission control system ··················\
········7-78
Explanation of scheduled maintenance items ···········7-19
Exterior care ··················\
··················\
··············7-71
Flat tire (with spare tire) ··················\
················· ·6-14
Changing tires ··················\
··················\
······· ·6-15
Compact spare tire ··················\
··················\
·· ·6-20
Jack and tools ··················\
··················\
·········6-14
Removing and storing the spare tire ··················\
·6-15
Flat tire (with tire mobility kit) ··················\
··········6-22
Components of the tire mobility kit ··················\
·6-24
T

echnical data ··················\
··················\
·········6-27
Using the tire mobility kit ··················\
·············6-25
Floor mat anchor(s) ··················\
··················\
··· ·4-124
E
F

Index
6I
Immobilizer system··················\
··················\
·······4-7
Indicator symbols on the instrument cluster ··············1-7
Indicators and warnings ··················\
················· ·4-53
Inside rearview mirror ··················\
··················\
· ·4-31
Instrument cluster ··················\
··················\
······· ·4-40
Blue drive mode ··················\
··················\
····· ·4-44
Engine temperature gauge ··················\
············4-42
Fuel gauge ··················\
··················\
············ ·4-43
Hybrid electric vehicle ··················\
··············· ·4-45
Instrument panel illumination ··················\
········4-41
Odometer ··················\
··················\
··············4-41
Speedometer ··················\
··················\
········· ·4-42
Trip computer ··················\
··················\
·········4-44
Vehicle setting ··················\
··················\
······· ·4-51
Warning and indicators ··················\
··············· ·4-53
Instrument panel fuse ··················\
··················\
·· ·7-52
Instrument panel illumination ··················\
············4-41
Instrument panel overview ··················\
·················2-3
Interior care ··················\
··················\
·············· ·7-75
Interior features ··················\
··················\
·········4-121
Aux, USB and iPod
®port ··················\
·········· ·4-124
Clothes hanger ··················\
··················\
····· ·4-123
Cup holder ··················\
··················\
·········· ·4-121
Digital clock ··················\
··················\
·········4-123
Floor mat anchor(s) ··················\
··················\
·4-124
Power outlet ··················\
··················\
·········4-122
Sunvisor ··················\
··················\
··············4-121 Interior light
··················\
··················\
··············4-78
Interior overview ··················\
··················\
········· ·2-2
Inverter coolant ··················\
··················\
········· ·7-24
Jack and tools (with spare tire) ··················\
··········6-14
Jump starting ··················\
··················\
·············· ·6-6
Label Air bag warning label ··················\
················· ·3-62
Tire sidewall labeling ··················\
················· ·7-43
Tire specification and pressure label ··················\
··8-8
Vehicle certification label ··················\
···············8-7
Latch system, see lower anchor system ··················3-33
Light bulbs ··················\
··················\
··············· ·7-61
Lighting ··················\
··················\
··················\
·4-71
Battery saver function ··················\
················ ·4-71
Lower anchor system ··················\
··················\
·· ·3-33
Lubricants and capacities ··················\
················· ·8-5
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