2019 HYUNDAI SONATA HYBRID start stop button

7-5
7
Maintenance
OOWW NNEERR MM AAIINN TTEENN AANN CCEE
The following lists are vehicle checks and inspections that should be per-
formed by the owner or an authorized
HYUNDAI dealer at the frequencies
indicated to help ensure safe,
dependable operation of your vehicle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged
for labor, parts and lubricants used.
Performing maintenance work
on a vehicle can be dangerous.
If you lack sufficient knowledge
and experience or the propertools and equipment to do the
work, have it done by an author-
ized HYUNDAI dealer. ALWAYS
follow these precautions for
performing maintenance work:
Park your vehicle on level
ground, move the shift lever
into the P (Park, for automatic
transmission vehicle) posi-
tion, apply the parking brake,
place the Engine Start/Stop
button in the OFF position.
Block the tires (front and back)
to prevent the vehicle from
moving.
Remove loose clothing or jew-
elry that can become entan-
gled in moving parts.
(Continued)
WARNING (Continued)
If you must run the engine
during maintenance, do so
out doors or in an area withplenty of ventilation.
Keep flames, sparks, or smok-
ing materials away from the
battery and fuel-related parts.
When you open the engine
hood, turn the hybrid system
off. If not, It may result in
death or serious injury
because of the high voltage
flow.

7-32
MaintenanceB
B AA TTTT EERR YY
When you do not use the vehicle
for a long time in a low tempera-
ture area, disconnect the battery
and keep it indoors.
Always charge the battery fully to prevent battery case damage
in low temperature areas.
NOTICE
To prevent SERIOUS INJURY or
DEATH to you or bystanders,
always follow these precautions
when working near or handling
the battery:
Always read and follow
instructions carefully
when handling a battery.Wear eye protection
designed to protect the
eyes from acid splashes.
Keep all flames, sparks, or smoking materials
away from the battery.
Hydrogen is always pres- ent in battery cells, is
highly combustible, and
may explode if ignited.
Keep batteries out of
reach of children.
(Continued)
WARNING (Continued)Batteries contain sulfu-
ric acid which is highly
corrosive. Do not allow
acid to contact your
eyes, skin or clothing.
If acid gets into your eyes, flush
your eyes with clean water for at
least 15 minutes and get imme-
diate medical attention. If acid
gets on your skin, thoroughly
wash the area. If you feel pain or
a burning sensation, get med-
ical attention immediately.
When lifting a plastic-cased
battery, excessive pressure
on the case may cause battery
acid to leak. Lift with a battery
carrier or with your hands on
opposite corners.
Do not attempt to jump start
your vehicle if your battery is
frozen.
(Continued)
(Continued)
NEVER attempt to recharge
the battery when the vehicle’s
battery cables are connected
to the battery.
The electrical ignition system
works with high voltage.
NEVER touch these compo-nents with the engine running
or when the Engine Start/Stop
button is in the ON position.

7-33
7
Maintenance
For best battery service
Keep the battery securely mount-ed.
Keep the battery top clean and dry.
Keep the terminals and connec- tions clean, tight, and coated with
petroleum jelly or terminal grease. Rinse any spilled acid from the bat-
tery immediately with a solution of
water and baking soda.
Battery recharging
Always follow these instructions
when recharging your vehicle’s
battery to avoid the risk of SERI-
OUS INJURY or DEATH from
explosions or acid burns:
Before performing mainte-
nance or recharging the bat-
tery, turn off all accessories and
place the Engine Start/Stop
button to the OFF position.
Keep all flames, sparks, or
smoking materials away from
the battery.
Always work outdoors or in an area with plenty of ventilation.
Wear eye protection when
checking the battery during
charging.
The battery must be removed
from the vehicle and placed ina well ventilated area.
(Continued)
WARNING
OLFH047757
OLFP047757
■Hybrid
■Plug-in hybrid

I-4
Driver Attention Alert system (DAA) ............................5-62
Resetting the system ...................................................5-64
System malfunction ....................................................5-64
System setting and activation .....................................5-62
System standby...........................................................5-64
Driver position memory system .....................................3-14 Easy Access Function .................................................3-15
Storing Positions into Memory ..................................3-14
Driving the Hybrid/Plug-in Hybrid Vehicle ....................H22
Changing plug-in hybrid mode ...................................H26
Energy flow.................................................................H38
Hybrid System Gauge .................................................H24
Special features ...........................................................H23
Starting the vehicle .....................................................H22
Warning and indicator lights.......................................H27
Warning messages.......................................................H28
Emission control system .................................................7-87 Crankcase emission control system ...........................7-87
Evaporative emission control system including onboard refueling vapor recovery (ORVR) ............7-87
Exhaust emission control system ...............................7-88
Engine ...............................................................................8-2
Engine compartment..................................................1-6, 7-3
Engine coolant/Inverter coolant ......................................7-20
Changing engine coolant ............................................7-23
Checking the engine/inverter coolant level................7-20 Engine number ..................................................................8-9
Engine oil ........................................................................7-18
Checking the engine oil and filter ..............................7-19
Checking the engine oil level .....................................7-18
Engine start/stop button ....................................................5-5
Engine Stop/Start button positions ...............................5-7
Illuminated Engine Start/Stop button ...........................5-6
Starting the hybrid system............................................5-9
Explanation of scheduled maintenance items.................7-15
Exterior features..............................................................3-39 Fuel Filler Door (Hybrid) ...........................................3-46
Fuel Filler Door (Plug-in hybrid) ...............................3-50
Hood ...........................................................................3-39
Smart Trunk ................................................................3-43
Trunk ..........................................................................3-40
Exterior overview (I) ........................................................1-2
Exterior overview (II) .......................................................1-3
Fuses ...............................................................................7-51 Engine compartment panel fuse replacement ............7-54
Fuse/relay panel description .......................................7-56
Instrument panel fuse replacement.............................7-52
Index
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