2019 HYUNDAI SONATA HYBRID automatic transmission

7-6
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, levelroad.
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 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 theopening and cause serious
burns and other injuries.
WARNING

7-7
7
Maintenance
At least twice a year:(i.e., every Spring and Fall)
Check radiator, heater and air condi- tioning hoses for leaks or damage.
Check windshield washer spray and wiper operation. Clean wiper
blades with clean cloth dampened
with washer fluid.
Check headlamp alignment.
Check muffler, exhaust pipes, shields and clamps.
Check the seat belts for wear and function.
At least once a year:
Clean body and door drain holes.
Lubricate door hinges and hoodhinges.
Lubricate door and hood locks and latches.
Lubricate door rubber weather strips.
Check the air conditioning system.
Inspect and lubricate automatic transmission linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.

7-11
7
Maintenance
Normal maintenance schedule (CONT.)
R : Replace I : Inspect and, after Inspection, clean, adjust, repair or replace if necessary.
No.DESCRIPTIONKILOMETERS X 10001224364860728496108120132144156168180192204216228240
MONTHS6121824303642485460667278849096102108114120
GENERAL ITEMS
1ENGINE COOLANTAt first, replace the coolant at 192,000 km or 120 months;after that, replace it every 48,000 km or 24 months
2INVERTER COOLANTAt first, replace the coolant at 192,000 km or 120 months;
after that, replace it every 48,000 km or 24 months
3AUTOMATIC TRANSMISSION FLUIDNo check, No service required
4BRAKE FLUIDIIIII
5BRAKE HOSE/LINES & CONNECTIONS (including booster)IIIIIIIIII
6FRONT DISC BRAKE/PADS, CALIPERSIIIIIIIIII
7REAR BRAKE DISC/PADSIIIIIIIIII
8PARKING BRAKEIIIII

7-13
7
Maintenance
Maintenance under severe usage conditions
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
MAINTENANCE ITEMMAINTENANCEOPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
ENGINE OIL AND FILTERREVERY 6,000 KM OR 6 MONTHSA, B, C, D, E, F, G, H, I, K
AIR CLEANER FILTERRMORE FREQUENTLYC, E
SPARK PLUGSRMORE FREQUENTLYB, H
AUTOMATIC TRANSMISSION FLUIDREVERY 96,000 KMA, C, D, E, F, G, H, I, K
HSG (Hybrid Starter & Generater) BeltREVERY 48,000 KM OR 24 MONTHSC, D, E, LIEVERY 6,000 KM OR 6 MONTHS
FRONT DISC BRAKE/PADS, CALIPERSIMORE FREQUENTLYC, D, G, H
REAR BRAKE DISC/PADSIMORE FREQUENTLYC, D, G, F
PARKING BRAKEIMORE FREQUENTLYC, D, G, H
STEERING GEAR BOX, LINKAGE &
BOOTS/LOWER ARM BALL JOINT, UPPER ARM BALL JOINT
IMORE FREQUENTLYC, D, E, F, G, H, I
DRIVE SHAFTS AND BOOTSIEVERY 12,000 KM OR 6 MONTHSC, D, E, F, G, H, I, J

7-16
Maintenance
Cooling system
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Engine coolant/Inverter coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Automatic transmission fluid
Automatic transmission fluid should
not be checked under normal usage
conditions. But in severe conditions,the fluid should be changed at an
authorized HYUNDAI dealer inaccordance to the scheduled mainte-nance at the beginning of this chap-
ter.
Automatic transmission fluid
color is basically red.
As the vehicle is driven, the auto- matic transmission fluid will begin
to look darker. This is a normal
condition and you should not
judge the need to replace the fluid
based upon the changed color.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
Brake fluid
Check brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX
marks on the side of the reservoir.
Use only hydraulic brake fluid con-
forming to DOT 3 or DOT 4 specifi-cation.
Parking brake
Inspect the parking brake system
including the parking brake pedal
and cables.
NOTICE
The use of a non-specified fluid could result in transmission
malfunction and failure. Use
only the specified automatic
transmission fluid (refer to"Recommended Lubricants and
Capacities" in chapter 8).
CAUTION

7-45
7
Maintenance
Tire terminology and defini- tions
Air Pressure
The amount of air inside the tire
pressing outward on the tire. Air
pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight
This means the combined weight of
optional accessories. Some exam-
ples of optional accessories are
automatic transmission, power
seats, and air conditioning.
Aspect Ratio
The relationship of a tire’s height toits width.
Belt
A rubber coated layer of cords that is
located between the plies and the
tread. Cords may be made from steel
or other reinforcing materials.
Bead
The tire bead contains steel wires
wrapped by steel cords that hold the
tire onto the rim.
Bias Ply Tire
A pneumatic tire in which the plies
are laid at alternate angles less than
90 degrees to the centerline of thetread.
Cold Tire Pressure
The amount of air pressure in a tire,measured in pounds per square inch
(psi) or kilopascals (kPa) before a tire
has built up heat from driving.
Curb Weight
This means the weight of a motor
vehicle with standard and optional
equipment including the maximum
capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings
The DOT code includes the TireIdentification Number (TIN), an
alphanumeric designator which can
also identify the tire manufacturer,
production plant, brand and date ofproduction.

8-6
Specifications & Consumer information
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.
RREECCOO MM MMEENN DDEEDD LL UU BBRRIICC AA NN TTSS AA NN DD CC AA PPAA CCIITT IIEE SS
*1
Refer to the recommended SAE viscosity numbers on the next page.
* 2
Engine 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.
* 3
If the API service SM engine oil is not available in your country, you are able to use API service SL. Lubricant
Volume Classification
Engine oil * 1
*2
(drain and refill)
Recommends
4.1 l(4.33 US qt.) API Service SM or above *
3
/ ILSAC GF- 4 or above
ACEA A5 or above
Automatic transmission fluid
6.0 l (6.34 US qt.) MICHANG ATF SP-IV / SK ATF SP-IV /
NOCA ATF SP-IV / HYUNDAI genuine ATF SP-IV or other
brands meeting the above specification approved by Hyundai Motor Co.,
Engine coolant6.6 ~ 6.9 l
(6.97~7.29 US qt.)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Inverter coolant
2.26 l(2.38 US qt.) Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Brake fluid
0.7~0.8 l
(0.74~0.85 US qt.) FMVSS116 DOT-3 or DOT-4
FuelHybrid60
l(15.85 US gal.)Refer to "Fuel Requirements" in the Foreword chapter.Plug-in hybrid55 l(14.53 US gal.)

I-2
Accessing your vehicle .....................................................3-3
Immobilizer System .....................................................3-8
Smart Key.....................................................................3-3
Air bag - advanced supplemental restraint system .........2-47 Additional Safety Precautions ....................................2-69
Air Bag Warning Labels.............................................2-70
How Does the Air Bag System Operate? ...................2-53
Occupant Classification System (OCS) .....................2-58
SRS Care ....................................................................2-68
What to Expect After an Air Bag Inflates ..................2-57
Where Are the Air Bags? ...........................................2-49
Why Didn't My Air Bag Go Off in a Collision?........2-63
Air cleaner.......................................................................7-26
Filter replacement .......................................................7-26
Air conditioning system....................................................8-5
Appearance care..............................................................7-78 Exterior care ...............................................................7-78
Interior care ................................................................7-84
Automatic climate control system ................................3-119
Automatic heating and air conditioning ...................3-120
Manual heating and air conditioning .......................3-121
System maintenance .................................................3-131
System operation ......................................................3-129 Automatic Emergency Braking (AEB)...........................5-67
AEB front radar sensor ..............................................5-72
AEB warning message and system control................5-69
Limitations of the system ...........................................5-75
System malfunction ....................................................5-73
System setting and activation .....................................5-67
Automatic transmission ..................................................5-12 Automatic transmission operation..............................5-12
Good driving practices ...............................................5-17
Parking........................................................................5-17
Basic troubleshooting guide ...........................................6-35
Battery .............................................................................7-32 Battery recharging ......................................................7-33
For best battery service ..............................................7-33
Reset features .............................................................7-34
Before driving ...................................................................5-4
Before entering the vehicle ..........................................5-4
Before starting ..............................................................5-4
Blind Spot Detection system (BSD) ...............................5-45 BSD (Blind Spot Detection) / LCA (Lane Change Assist) .....................................5-46
Limitations of the system ...........................................5-52
RCTA (Rear Cross Traffic Alert) ...............................5-49
Brake fluid ......................................................................7-24 Checking the brake fluid level ...................................7-24
Index
A
B