2023 HYUNDAI SONATA steering

While Driving
6-150
Hazardous Driving Conditions
When hazardous driving elements
are encountered such as water, snow,
ice, mud and sand, take the below
suggestions: • Drive cautiously and keep a longer
braking distance.
• Avoid abrupt braking or steering.
• When your vehicle is stuck in
snow, mud, or sand, use second
gear. Accelerate slowly to avoid unnecessary wheel spin.
• Put sand, rock salt or other non-slip
materials under the wheels to provide
additional traction while the vehicle
becomes stuck in ice, snow, or mud.
WARNING
Downshifting with an automatic
transmission while driving on slippery
surfaces can cause an accident. The
sudden change in tire speed could
cause the tires to skid. Be careful when
downshifting on slippery surfaces.
Rocking the Vehicle
If it is necessary to rock the vehicle to
free it from snow, sand, or mud, first turn
the steering wheel right and left to clear
the area around your front wheels. Then,
shift back and forth between R (Reverse)
and a forward gear.
Try to avoid spinning the wheels, and do
not race the engine.
To prevent transmission wear, wait until
the wheels stop spinning before shifting
gears. Release the accelerator pedal
while shifting, and press lightly on the
accelerator pedal while the transmission
is in gear. Slowly spinning the wheels in
forward and reverse directions causes a
rocking motion that may free the vehicle.
WARNING
If the vehicle is stuck and excessive
wheel spin occurs, the temperature
of the tires can increase very quickly.
If the tires become damaged, a tire
blow out or tire explosion can occur.
This condition is dangerous - you and
others may be injured. Do not attempt
this procedure if people or objects are
anywhere near the vehicle.
If you attempt to free the vehicle, the
vehicle can overheat quickly, possibly
causing an engine compartment fire
or other damage. Try to avoid spinning
the wheels as much as possible to
prevent overheating of either the tires
or the engine. DO NOT allow the vehicle
to spin the wheels above 56 km/h (35
mph).
Information
The ESC system must be turned OFF
before rocking the vehicle.
NOTICE
If you are still stuck after rocking the
vehicle a few times, have the vehicle
pulled out by a tow vehicle to avoid
engine overheating, possible damage to
the transmission, and tire damage. See
"Towing" in chapter 7.
special Driving conDitions

06
6-155
Do not let ice and snow accumulate
underneath
Under some conditions, snow and ice
can build up under the fenders and
interfere with the steering. When driving
in severe winter conditions where this
may happen, you should periodically
check underneath the car to be sure the
movement of the front wheels and the
steering components is not obstructed.
Don't place foreign objects
or materials in the engine
compartment
Placement of foreign object or materials
which prevent cooling of the engine, in
the engine compartment, may cause a
failure or combustion. The manufacturer
is not responsible for the damage caused
by such placement.
To keep locks from freezing
To keep the locks from freezing, squirt
an approved de-icer fluid or glycerine
into the key opening. If a lock is covered
with ice, squirt it with an approved de-
icing fluid to remove the ice. If the lock
is frozen internally, you may be able to
thaw it out by using a heated key. Handle
the heated key with care to avoid injury.

07
7-21
BasIC trouBleshootIng guIDe
SYMPTOM
PROBABLE CAUSE
Starter won’t function
Engine turns over but will not start
Engine misfires
Engine overheats
Engine stops while driving driving
Fuel consumption is excessive
Brake pedal is spongy
Braking power is insufficient
Steering wheel is heavy
Steering wheel shakes
Steering wheel pulls to one side while driving
Vehicle pulls to one side while braking
Tire wear is abnormal
Charge warning light comes on while driving
Wipers, horn or lights won’t funciton
Battery discharge is excessive
Engine overheating O
Low fuel level O O
Fuel lines clogged O O
Fuel pump defective O O
Strainer clogged O O
Rich mixture O O O Water intrusion into fuel O O O
Coolant leakage OHigh idle speed O
Engine oil insufficient or defective O O
Battery fluid shortage O O
Battery discharged O O O
Battery terminal poor contact O O
Starter or ignition switch malfunction O
Ignition timing incorrect O O O Spark plugs deteriorated O O Spark plugs defective O

Emergency Situations
7-22
SYMPTOM
PROBABLE CAUSE
Starter won’t function
Engine turns over but will not start
Engine misfires
Engine overheats
Engine stops while driving driving
Fuel consumption is excessive
Brake pedal is spongy
Braking power is insufficient
Steering wheel is heavy
Steering wheel shakes
Steering wheel pulls to one side while driving
Vehicle pulls to one side while braking
Tire wear is abnormal
Charge warning light comes on while driving
Wipers, horn or lights won’t funciton
Battery discharge is excessive
Ignition circuit faulty O O Ignition coil or condensor faulty O O O
Distributor faulty O
Alternator belt loose O O O O O Check fuses, bulbs or wiring O
Brake dragging O O
Shift lever not positioned in
"P" or "N" range O
Frequent driving in lower gear O
Air intrusion into brake lines O
Brake fluid insufficient O
Brake disc and pads wet O O
Brake pad wear O O
Wheel alignment incorrect O O O O O O Wheel balance incorrect O O
Tire pressure incorrect
(too low or high) O O O O
Tire size incorrect O

08
8 -7
While operating your vehicle: •
Note any changes in the sound of the
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 looseness in the
steering wheel, or change in its
straight-ahead position.
• 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 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 engine
coolant reservoir.
• Check the operation of all exterior
lights, including the brake lights, 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. At least twice a year:
(i.e., every Spring and Autumn) •
Check radiator, heater and air
conditioning hoses for leaks or damage.
• Check windshield washer spray and
wiper operation. Clean wiper blades
with a clean cloth dampened with
washer a 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 hood hinges.
• Lubricate door and hood locks and
latches.
• Lubricate door rubber weather strips.
• Lubricate door checker.
• Check the air conditioning system.
• Inspect and lubricate automatic
transmission linkage and controls.
• Clean the battery and terminals.
• Check the brake fluid level.

Maintenance
8-8
*1 : If TOP TIER Detergent Gasoline is not available, one bottle of Fuel Injector Cleaner is recommended. Fuel Injector Cleaners are
available from your authorized HYUNDAI dealer along with information on how to use them. Do not mix other Fuel Injector
Cleaners.Maintenance Schedule (Smartstream G1.6 T-GDI)The following maintenance services must be performed to ensure good emission control and performance. Keep
receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency
of service is determined by whichever occurs first.
R : Replace A : Add S : Service I : Inspect L : Lubricate r : RotateSCHEDULED maintEnanCE SErviCESDESCRIPTION KILOMETERS X 1000
8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
MONTHS 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120Engine Oil And Filter
Replacement (Synthetic oil) R R R R R R R R R R R R R R R R R R R R
Steering gear box, linkage and
boots I I I I I I I I I I I I I I I I I I I I
Drive shafts and boots I I I I I I I I I I I I I I I I I I I I
Vacuum Hose I I I I I I I I I I I I I I I I I I I I
All Latch, Hinges and Locks L L L L L L L L L L L L L L L L L L L L
Rotate tire or perform seasonal
tire change r r r r r r r r r r
Fuel Injector Cleaner * 1
A A A A A A A A A A

Maintenance
8-12
*1 : If TOP TIER Detergent Gasoline is not available, one bottle of Fuel Injector Cleaner is recommended. Fuel Injector Cleaners are
available from your authorized HYUNDAI dealer along with information on how to use them. Do not mix other Fuel Injector
Cleaners.Maintenance Schedule (Smartstream G2.5 GDI)The following maintenance services must be performed to ensure good emission control and performance. Keep
receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency
of service is determined by whichever occurs first.
R : Replace A : Add S : Service I : Inspect L : Lubricate r : RotateDESCRIPTION KILOMETERS X 1000
8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
MONTHS 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120Engine Oil And Filter
Replacement (Synthetic oil) R R R R R R R R R R R R R R R R R R R R
Steering gear box, linkage and
boots I I I I I I I I I I I I I I I I I I I I
Drive shafts and boots I I I I I I I I I I I I I I I I I I I I
Vacuum Hose I I I I I I I I I I I I I I I I I I I I
All Latch, Hinges and Locks L L L L L L L L L L L L L L L L L L L L
Rotate tire or perform seasonal
tire change r r r r r r r r r r
Fuel Injector Cleaner * 1
A A A A A A A A A A

Maintenance
8-16
*1 : If TOP TIER Detergent Gasoline is not available, one bottle of Fuel Injector Cleaner is recommended. Fuel Injector Cleaners are
available from your authorized HYUNDAI dealer along with information on how to use them. Do not mix other Fuel Injector
Cleaners.Maintenance Schedule (Smartstream G2.5 T-GDI)The following maintenance services must be performed to ensure good emission control and performance. Keep
receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency
of service is determined by whichever occurs first.
R : Replace A : Add S : Service I : Inspect L : Lubricate r : RotateDESCRIPTION KILOMETERS X 1000
8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
MONTHS 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120Engine Oil And Filter
Replacement (Synthetic oil) R R R R R R R R R R R R R R R R R R R R
Steering gear box, linkage and
boots I I I I I I I I I I I I I I I I I I I I
Drive shafts and boots I I I I I I I I I I I I I I I I I I I I
Vacuum Hose I I I I I I I I I I I I I I I I I I I I
All Latch, Hinges and Locks L L L L L L L L L L L L L L L L L L L L
Rotate tire or perform seasonal
tire change r r r r r r r r r r
Fuel Injector Cleaner * 1
A A A A A A A A A A