brake fluid HYUNDAI SONATA HYBRID 2019 Owners Manual

1-6
Your vehicle at a glanceE
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OLFH017005
1. Engine oil filler cap ...........................7-19
2. Engine oil dipstick .............................7-18
3. Radiator cap .....................................7-20
4. Engine coolant reservoir ...................7-21
5. Brake fluid reservoir ..........................7-24
6. Air cleaner.........................................7-26
7. Inverter coolant reservoir ..................7-20
8. Windshield washer fluid reservoir .....7-25
9. Fuse box ...........................................7-52
The actual engine room in the vehicle may differ from the illustration.

3-63
Convenient features of your vehicle
3
Parking Brake & BrakeFluid Warning Light
This warning light illuminates:
When the Engine Start/Stop button is in the ON position
- It illuminates for approximately 3seconds and then goes off.
- It remains on if the parking brake is applied.
When the parking brake is applied.
When the brake fluid level in the reservoir is low.
- If the warning light illuminateswith the parking brake released, it
indicates the brake fluid level in
reservoir is low.
When the regenerative brake does not operate.
When only one of the dual system is working, the stopping distancewill be increased.
If the brake fluid level in the reser-
voir is low:
1. Drive carefully to the nearest safe location and stop your vehicle.
2. Stop the vehicle, immediately check the brake fluid level and add
fluid, if necessary (For more
information, refer to "Brake
Fluid" in the chapter 7). After
adding brake fluid, check all brake
components for fluid leaks. If a
brake fluid leak is found, or if the
warning light remains on, or if the
brakes do not operate properly, do
not drive the vehicle. Have the
vehicle inspected by an author-
ized HYUNDAI dealer.
Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking systems. This
means you still have braking on two
wheels even if one of the dual sys-
tems fails. With only one of the dual systems
working, longer pedal travel and
greater pedal pressure is required. If the brakes fail, while driving, shift
to a lower gear for additional engine
braking and stop the vehicle as soon
as it is safe to do so.
(red color)
Driving the vehicle with a warn-
ing light ON is dangerous. If the
Parking Brake & Brake Fluid
Warning Light illuminates with
the parking brake released, itindicates that the brake fluid
level is low.
In this case, have the vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING

3-65
Convenient features of your vehicle
3
Information
When the ABS warning light illumi-
nates, or when both the ABS and the
Parking Brake & Brake Fluid warn-
ing lights illuminate, the speedometer,
the odometer, or the tripmeter may
not properly operate. Also, the EPS
warning light may illuminate and the
steering effort may increase or
decrease.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer as
soon as possible.Electronic Parking Brake (EPB) Warning
Light (if equipped)
This warning light illuminates:
When the Engine Start/Stop button is in the ON position.
- It illuminates for approximately 3seconds and then goes off.
When there is a malfunction with the EPB.
In this case, have the vehicle
inspected by an authorized
HYUNDAI dealer.
Information
The Electronic Parking Brake (EPB)
warning light may illuminate, when
the Electronic Stability Control (ESC)
indicator illuminates due to ESC mal-
function (This does not indicate EPB
malfunction).
i
i
When both the ABS and Parking
Brake & Brake Fluid Warning
Lights are on, the brake system
will not work normally and you
may experience an unexpected
and dangerous situation during
sudden braking.
In this case, avoid high speed driving and abrupt braking.
Have the vehicle inspected by
an authorized HYUNDAI dealer
as soon as possible.
WARNINGEPB

6-35
What to do in an emergency
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6
Starter won't function
Engine turns over but
will not start Engine misfires
Engine overheats Engine stops while
driving Fuel consumption is
excessive
Brake pedal is spongy
Braking power is insufficient
Steering wheel is heavy
Steering wheel shakesSteering wheel pulls to
one side while drivingVehicle pulls to one side
while braking
Tire wear is abnormalCharge warning light\
comes on while drivingWipers, horn or lights
won't funciton
Battery discharge is
excessive
Engine overheating
Low fuel levelFuel lines clogged
Fuel pump defective
Strainer cloggedRich mixture
Water intrusion into fuelCoolant leakageHigh idle speed
Engine oil insufficient or defective
Battery fluid shortage
Battery discharged
Battery terminal poor contact
Starter or ignition switch malfunctionIgnition timing incorrect
Spark plugs deteriorated
Spark plugs defective OOOOOOOOOO O O
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OOO
SYMPTOM
PROBABLE CAUSE

6-36
What to do in an emergency
Starter won't function
Engine turns over but
will not start Engine misfires
Engine overheats Engine stops while
driving Fuel consumption is
excessive
Brake pedal is spongy
Braking power is insufficient
Steering wheel is heavy
Steering wheel shakesSteering wheel pulls to
one side while drivingVehicle pulls to one side
while braking
Tire wear is abnormalCharge warning light\
comes on while drivingWipers, horn or lights
won't funciton
Battery discharge is
excessive
Ignition circuit faulty
Ignition coil or condensor faulty
Distributor faulty
Alternator belt loose
Check fuses, bulbs or wiring
Brake dragging
Shift lever not positioned in "P" or "N" range
Frequent driving in lower gear
Air intrusion into brake lines
Brake fluid insufficient
Brake disc and pads wet
Brake pad wearWheel alignment incorrectWheel balance incorrect
Tire pressure incorrect (too low or high)
Tire size incorrectO
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SYMPTOM
PROBABLE CAUSE

7
Maintenance
7
Maintenance
Engine compartment .............................................7-3
Maintenance services ...........................................7-4Owner's responsibility ......................................................7-4
Owner maintenance precautions ..................................7-4
Owner maintenance ...............................................7-5 Owner maintenance schedule ........................................7-6
Scheduled maintenance services.........................7-8 Normal maintenance schedule .......................................7-9
Maintenance under severe usage conditions ..........7-13
Explanation of scheduled maintenance items .. 7-15
Engine oil ..............................................................7-18 Checking the engine oil level .......................................7-18
Checking the engine oil and filter ..............................7-19
Engine coolant/Inverter coolant .......................7-20 Checking the engine/inverter coolant level .............7-20
Changing engine coolant...............................................7-23
Hybrid starter & generator (HSG) belt.............7-23 Checking the hybrid starter &
generator (HSG) belt ......................................................7-23
Brake fluid ............................................................7-24 Checking the brake fluid level .....................................7-24
Washer fluid .........................................................7-25 Checking the washer fluid level ..................................7-25 Parking brake .......................................................7-25
Checking the parking brake .........................................7-25
Air cleaner ............................................................7-26 Filter replacement ...........................................................7-26
Climate control air filter .....................................7-28 Filter inspection ...............................................................7-28
Wiper blades .........................................................7-30 Blade inspection ..............................................................7-30
Blade replacement ..........................................................7-30
Battery...................................................................7-32 For best battery service................................................7-33
Battery recharging .........................................................7-33
Reset features .................................................................7-34
Tires and wheels ..................................................7-35 Tire care ............................................................................7-35
Recommended cold tire inflation pressures.............7-36
Check tire inflation pressure........................................7-37
Tire rotation .....................................................................7-38
Wheel alignment and tire balance ..............................7-39
Tire replacement .............................................................7-39
Wheel replacement .........................................................7-40
Tire traction ......................................................................7-40
7

7-3
7
Maintenance
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1. Engine oil filler cap
2. Engine oil dipstick
3. Radiator cap
4. Engine coolant reservoir
5. Brake fluid reservoir
6. Air cleaner
7. Inverter coolant reservoir
8. Windshield washer fluid reservoir
9. Fuse box
The actual engine compartment the vehicle
may differ from the illustration.
OLFH017005

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