2018 Hyundai Sonata Check the engine oil level

3-95
Convenient features of your vehicle
3
Engine Oil PressureWarning Light
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It remains on until the engine isstarted.
When the engine oil pressure is low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe location and stop your vehicle.
2. Turn the engine off and check the engine oil level (For more infor-
mation, refer to "Engine Oil" in
chapter 7). If the level is low, add
oil as required.
If the warning light remains on
after adding oil and restarting the
engine or if oil is not available, turn
off the engine. There is a mechan-
ical concern that needs to be
repaired before you can continue
driving. In this case, have your
vehicle inspected by an author-
ized HYUNDAI dealer. - Engine Oil Pressure Warning light
To prevent severe engine damage,
after the Engine Oil Pressure
Warning Light is illuminated and as
soon as it is safe to do so, turn the
engine off and check the oil level.
If the oil level is low, fill the engine
oil to the proper level and start the
engine again. If the light stays on
with the engine running, turn the
engine off immediately.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Low Fuel Level
Warning Light
This warning light illuminates:
When the fuel tank is nearly empty.
Add fuel as soon as possible.
- Low Fuel Level
Driving with the Low Fuel Level
warning light on or with the fuel
level below "E" can cause the
engine to misfire and damage the
catalytic converter (if equipped).
NOTICE
NOTICE

7
Maintenance
7
Maintenance
Engine Compartment ............................................7-3
Maintenance Services ...........................................7-6
Owner's Responsibility .....................................................7-6
Owner Maintenance Precautions..................................7-6
Owner Maintenance ..............................................7-7
Owner Maintenance Schedule .......................................7-8
Scheduled Maintenance Services........................7-9
Normal Maintenance Schedule
(Gamma 1.6 T-GDI/Theta 2.0 T-GDI)..........................7-10
Maintenance Under Severe Usage Conditions
(Gamma 1.6 T-GDI/Theta 2.0 T-GDI)..........................7-13
Normal Maintenance Schedule (Theta 2.4 GDI) ......7-15
Maintenance Under Severe Usage Conditions
(Theta 2.4 GDI) .................................................................7-18
Explanation of Scheduled Maintenance Items ..7-20
Engine Oil and Filter.......................................................7-20
Drive Belts........................................................................\
.7-20
Fuel Filter ........................................................................\
..7-20
Fuel Lines, Fuel Hoses and Connections ..................7-20
Vapor Hose and Fuel Filler Cap ...................................7-20
Air Cleaner Filter .............................................................7-20
Spark Plugs .......................................................................7\
-20
Valve Clearance ...............................................................7-21
Cooling System ................................................................7-21
Engine Coolant .................................................................7-21 Automatic Transmission Fluid ......................................7-21
Ecoshift Dual Clutch Transmission Fluid ...................7-21
Brake hoses and Lines ..................................................7-22
Brake Fluid ........................................................................\
7-22
Parking Brake...................................................................7-22
Brake Discs, Pads, Calipers and Rotors .....................7-22
Exhaust Pipe and Muffler.............................................7-22
Suspension Mounting Bolts ..........................................7-22
Steering Gear Box, Linkage &
Boots/Lower Arm Ball Joint .........................................7-22
Drive Shafts and Boots .................................................7-22
Air Conditioning Refrigerant ........................................7-22
Engine Oil ..............................................................7-23
Checking the Engine Oil Level .....................................7-23
Checking the Engine Oil and Filter .............................7-25
Engine Coolant .....................................................7-26
Checking the Engine Coolant Level ............................7-26
Changing Engine Coolant ..............................................7-28
Brake Fluid ............................................................7-29
Checking the Brake Fluid Level ...................................7-29
Washer Fluid .........................................................7-30
Checking the Washer Fluid Level................................7-30
Parking Brake .......................................................7-30
Checking the Parking Brake .........................................7-30
7

7-8
Maintenance
Owner Maintenance Schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in the enginecoolant reservoir.
Check the windshield washer fluid level.
Check for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound ofthe exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering wheel. Notice if there is any
increased steering effort or loose-
ness in the steering wheel, or
change in its straight-ahead posi-
tion.
Notice if your vehicle constantly turns slightly or "pulls" to one side
when traveling on smooth, level
road.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or "hard-to-push" brake pedal.
If any slipping or changes in the operation of your transmission
occurs, check the transmission
fluid level.
Check the automatic transmission /ecoshift dual clutch transmission
P (Park) function.
Check the parking brake.
Check for fluid leaks under your vehicle (water dripping from the air
conditioning system during or after
use is normal).
At least monthly:
Check coolant level in the enginecoolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn
signals and hazard warning flashers.
Check the inflation pressures of all tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
Check for loose wheel lug nuts.
Be careful when checking your
engine coolant level when the
engine is hot. This may result in
coolant being blown out of the
opening and cause serious
burns and other injuries.
WARNING

7-23
7
Maintenance
E
EN
N G
GI
IN
N E
E
O
O I
IL
L
Checking the Engine Oil Level
1. Follow all of the oil manufacturer’s
precautions.
2. Be sure the vehicle is on level ground in P (Park) with the parking
brake set and the wheels blocked.
3. Turn the engine on and allow the engine to reach normal operating
temperature.
4. Turn the engine off and wait about five minutes for the oil to return to
the oil pan.
5. Pull the dipstick out, wipe it clean, and re-insert it fully. 6. Pull the dipstick out again and
check the level. The level should
be between F and L.
7. If it is near or at L, add enough oil to bring the level to F.
OLF076076OLF077003N
■1.6 T-GDI
OLF076077N
■2.0 T-GDI
■2.4 GDI

7-24
Maintenance
To prevent damage to your
engine:
Do not overfill with engine oil. Add oil in small quantities and
recheck level to ensure engine
is not overfilled.
Do not spill engine oil when adding or changing engine oil.
Use a funnel to help prevent oil
from being spilled on engine
components. Wipe off spilled oil
immediately
Use only the specified engine oil
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
NOTICE
NOTICE
OLF074078NOLF074005
■1.6 T-GDI
OLF074079N
■2.0 T-GDI
■2.4 GDI

7-29
7
Maintenance
B
BR
RA
A K
KE
E
F
F L
LU
U I
ID
D
Checking the Brake Fluid Level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-
ination. If the level is low, add the specified
brake fluid to the MAX level. The level
will fall with accumulated mileage.
This is a normal condition associated
with the wear of the brake linings. If
the fluid level is excessively low, have
the brake system checked by an
authorized HYUNDAI dealer.
Do not allow brake fluid to con-
tact the vehicle’s body paint, as
paint damage will result.
Brake fluid, which has been exposed to open air for an
extended time should NEVER be
used as its quality cannot be
guaranteed. It should be dis-
posed of properly.
Do not use the wrong kind of brake fluid. A few drops of miner-
al based oil, such as engine oil, in
your brake system can damage
brake system parts.
Information
Use only the specified brake fluid
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
i
NOTICE
If the brake system requires fre-
quent additions of fluid this
could indicate a leak in the
brake system. Have the vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING
Do not allow brake fluid to come
in contact with your eyes. If
brake fluid comes in contact
with your eyes, flush your eyes
with clean water for at least 15
minutes and get immediate
medical attention.
WARNING
OLF074008N

I-4
Emission Control System ...............................................7-85Crankcase Emission Control System .........................7-85
\Evaporative Emission Control System Including
Onboard Refueling Vapor Recovery (ORVR) .............7-85
Exhaust Emission Control System .............................7-86
Engine ........................................................................\
.......8-2
Engine compartment..................................................1-6, 7-3
Engine Coolant ...............................................................7-26 Changing Engine Coolant ..........................................7-28
Checking the Engine Coolant Level ..........................7-26
Engine Number ...............................................................8-11
Engine Oil .......................................................................7\
-23 Checking the Engine Oil and Filter ...........................7-25
Checking the Engine Oil Level ..................................7-23
Explanation of Scheduled Maintenance Items ...............7-20 Air Cleaner Filter .......................................................7-20
Air Conditioning Refrigerant .....................................7-22
Automatic Transmission Fluid ...................................7-21
Brake Discs, Pads, Calipers and Rotors .....................7-22
Brake Fluid .................................................................7-22
Brake hoses and Lines................................................7-22
Cooling System ..........................................................7-21
Drive Belts..................................................................7-20
Drive Shafts and Boots ..............................................7-22
Ecoshift Dual Clutch Transmission Fluid ..................7-21 Engine Coolant ...........................................................7-21
Engine Oil and Filter ..................................................7-20
Exhaust Pipe and Muffler...........................................7-22
Fuel Filter ...................................................................7-20
Fuel Lines, Fuel Hoses and Connections ...................7-20
Parking Brake .............................................................7-22
Spark Plugs.................................................................7-20
Steering Gear Box, Linkage & Boots/ Lower Arm Ball Joint .............................................7-22
Suspension Mounting Bolts .......................................7-22
Valve Clearance ..........................................................7-21
Vapor Hose and Fuel Filler Cap .................................7-20
Exterior features..............................................................3-52 Fuel Filler Door ..........................................................3-59
Hood ........................................................................\
...3-52
Smart Trunk ................................................................3-56
Trunk ........................................................................\
..3-53
Exterior overview (I) ........................................................1-2
Exterior overview (II) .......................................................1-3
Fuses ........................................................................\
.......7-56 Engine Compartment Panel Fuse Replacement .........7-58
Fuse/Relay Panel Description ....................................7-60
Instrument Panel Fuse Replacement ..........................7-57
Index
E
F