2018 Hyundai Sonata 1.6

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Fuel economy
Distance To Empty (1)
The distance to empty is the esti-mated distance the vehicle can be
driven with the remaining fuel.
- Distance range: 1 ~ 9999 mi. or 1 ~ 9999 km
If the estimated distance is below 1 mi. (1 km), the trip computer will
display "---" as distance to empty.
Information
• If the vehicle is not on level groundor the battery power has been inter-
rupted, the distance to empty func-
tion may not operate correctly.
• The distance to empty may differ from the actual driving distance as
it is an estimate of the available
driving distance.
• The trip computer may not register additional fuel if less than 1.6 gal-
lons (6 liters) of fuel are added to the
vehicle.
• The fuel economy and distance to empty may vary significantly based
on driving conditions, driving
habits, and condition of the vehicle.
Average Fuel Economy (2)
The average fuel economy is cal-culated by the total driving dis-
tance and fuel consumption since
the last average fuel economy
reset.
The average fuel economy can be reset both manually and automati-
cally.
Manual reset
To clear the average fuel economy
manually, press the [OK] button on
the steering wheel for more than 1
second when the average fuel econ-
omy is displayed.
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Convenient features of your vehicle
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Convenient features of your vehicle
Automatic reset
To automatically reset the average
fuel economy after refueling, select
the "Auto Reset" mode in User
Settings menu on the LCD display.
- After Ignition: The average fueleconomy will reset automatically
whenever it has passed 4 hours
after turning OFF the engine.
- After Refueling: The average fuel economy will reset automatically
when driving speed exceeds 0.6
MPH, after adding 1.6 gallons (6
liters) of fuel or more.
Information
The average fuel economy may be
inaccurate, when the vehicle drives
shorter than 0.19 miles (300 meters)
after turning ON the Engine Start/
Stop button.
Instant Fuel Economy (3)
This mode displays the instant fueleconomy during the last few sec-
onds when the vehicle speed is
more than 6.2 MPH (10 km/h).
Accumulated Info display
This display shows the accumulated
trip distance (1), the average fuel
economy (2), and the total driving
time (3).
The information is calculated starting
from the last reset.
To manually reset the information,
press and hold the OK button when
viewing the Accumulated driving info.
The trip distance, the average fuel
economy, and total driving time will
reset simultaneously. The accumulated driving information
will continue to be counted while the
engine is still running (for example,
when the vehicle is in traffic or
stopped at a stop light.)
Information
The vehicle must be driven for a min-
imum of 0.19 miles (300 meters) since
the last ignition key cycle before the
average fuel economy will be recalcu-
lated.
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3
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5-20
When driving downhill, you mayuse Manual shift mode and press
the paddle shifters (except 1.6 T-
GDI engine) to downshift to a lower
gear in order to control your speed
without using the brake pedal
excessively.
When you turn the engine on and off, you may hear clicking sounds
as the system goes through a self
test. This is a normal sound for the
Ecoshift dual clutch transmission.
To hold the vehicle on a hill usethe foot brake or the parking
brake. If the vehicle is held by
applying the accelerator pedal
on a hill the clutch and trans-
mission will be overheated
resulting in damage.
At this time, a warning message
will appear on the LCD display
and you may feel a vibration.
(Continued)(Continued)
If the clutch becomes overheat-
ed by excessive use of the
clutch to hold on a hill, you may
notice a shudder feeling and a
blinking display on the instru-
ment cluster. When this occurs,
the clutch is disabled until the
clutch cools to normal tempera-
tures. If this occurs, pull over to
a safe location, shift into P
(Park) and apply the foot brake
for a few minutes.
If the LCD warning is active, the foot brake must be applied.
Ignoring the warnings can lead to damage to the transmission.
If the display continues to blink, for your safety, contact an
authorized HYUNDAI dealer and
have the system checked.
(Continued)NOTICE
Driving your vehicle
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Due to transmission failure, you
may not continue to drive and
the position indicator (D,R) on
the cluster will blink. Contact an
authorized HYUNDAI dealer and
have the system checked.
WARNING

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Driving your vehicle
5
To set Cruise Control speed
1. Push the CRUISE button on thesteering wheel to turn the system
on. The CRUISE indicator will illu-
minate.
2. Accelerate to the desired speed, which must be more than 20 mph
(30 km/h). 3. Push the toggle switch (1) down
(SET-), and release it. The SET
indicator light will illuminate.
4. Release the accelerator pedal.
Information
The vehicle may slow down or speed
up slightly while going uphill or down-
hill.
To increase Cruise Control speed
Push the toggle switch (1) up
(RES+) and hold it, while monitor-
ing the SET speed on the instru-
ment cluster. Release the toggle
switch when the desired speed is
shown and the vehicle will acceler-
ate to that speed.
Push the toggle switch (1) up (RES+) and release it immediately.
The cruising speed will increase 1.0
mph (1.6 km/h) each time the toggle
switch is operated in this manner.
Depress the accelerator pedal. When the vehicle attains the
desired speed, push the toggle
switch (1) down (SET-).
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Driving your vehicle
To decrease Cruise Controlspeed
Push the toggle switch (1) down
(SET-) and hold it. Your vehicle will
gradually slow down. Release the
toggle switch at the speed you
want to maintain.
Push the toggle switch (1) down (SET-) and release it immediately.
The cruising speed will decrease
1.0 mph (1.6 km/h) each time the
toggle switch is operated in this
manner.
Lightly tap the brake pedal. When the vehicle attains the desired
speed, push the toggle switch (1)
down (SET-).
To temporarily accelerate withthe Cruise Control ON
Depress the accelerator pedal. When
you take your foot off the accelerator,
the vehicle will return to the previ-
ously set speed.
If you push the toggle switch down
(SET-) at the increased speed, the
Cruise Control will maintain the
increased speed.
Cruise Control will be canceledwhen:
Depressing the brake pedal.
Pressing the CANCEL switch
located on the steering wheel.
Pushing the CRUISE button. Both the CRUISE indicator and the SET
indicator will turn OFF.
Moving the shift toggle switch into N (Neutral).
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What to do in an emergency
A cold tire means the vehicle has
been sitting for 3 hours and driven for
less than 1 mile (1.6 km) in that 3
hour period.
Allow the tire to cool before measur-
ing the inflation pressure. Always be
sure the tire is cold before inflating to
the recommended pressure.
Information
This device complies with Part 15 of
the FCC rules.
Operation is subject to the following
three conditions:
1. This device may not cause harmful interference, and
2. This device must accept any inter- ference received, including interfer-
ence that may cause undesired
operation.
3. Changes or modifications not expressly approved by the party
responsible for compliance could
void the user's authority to operate
the equipment.
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The TPMS cannot alert you to
severe and sudden tire dam-
age caused by external fac-
tors such as nails or road
debris.
If you feel any vehicle instabil-
ity, immediately take your foot
off the accelerator, apply the
brakes gradually with light
force, and slowly move to a
safe position off the road.
WARNING
Tampering with, modifying, or
disabling the Tire Pressure
Monitoring System (TPMS)
components may interfere with
the system's ability to warn the
driver of low tire pressure con-
ditions and/or TPMS malfunc-
tions. Tampering with, modify-
ing, or disabling the Tire
Pressure Monitoring System
(TPMS) components may void
the warranty for that portion of
the vehicle.
WARNING

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

7-3
7
Maintenance
E
EN
N G
GI
IN
N E
E
C
C O
O M
M P
PA
A R
RT
TM
M E
EN
N T
T

1. Engine oil filler cap
2. Engine oil dipstick
3. Brake fluid reservoir
4. Positive battery terminal
5. Negative battery terminal
6. Fuse box
7. Air cleaner
8. Radiator cap
9. Engine coolant reservoir
10. Windshield washer fluid reservoir
The actual engine compartment in the vehi-
cle may differ from the illustration.
■ ■1.6 T-GDI
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