Hyundai Sonata Plug-in Hybrid (2017 year). Manual

OWNER MAINTENANCE

The following lists are vehicle checks

WARNING

(Continued)

and inspections that should be per-

•

If you must run the engine

formed by the owner or an author-

Performing maintenance work

during maintenance, do so

ized HYUNDAI dealer at the frequen-

on a vehicle can be dangerous.

out doors or in an area with

cies indicated to help ensure safe,

If you lack sufficient knowledge

plenty of ventilation.

dependable operation of your vehi-

and experience or the proper

•

Keep flames, sparks, or smok-

cle.

tools and equipment to do the

ing materials away from the

Any adverse conditions should be

work, have it done by an author-

battery and fuel-related parts.

brought to the attention of your deal-

ized HYUNDAI dealer. ALWAYS

•

When you open the engine

er as soon as possible.

follow these precautions for

hood, turn the hybrid system

These Owner Maintenance vehicle

performing maintenance work:

off. If not, It may result in death

checks are generally not covered by

• Park your vehicle on level

or serious injury because of

warranties and you may be charged

ground, move the shift lever

the high voltage flow.

for labor, parts and lubricants used.

into the P (Park, for automatic

transmission vehicle) posi-

tion, apply the parking brake,

place the Engine Start/Stop

button in the OFF position.

• Block the tires (front and back)

to prevent the vehicle from

moving.

Remove loose clothing or jew-

elry that can become entan-

gled in moving parts.

(Continued)

7-5

Maintenance

Owner maintenance schedule

While operating your vehicle:

At least monthly:

When you stop for fuel:

•

Note any changes in the sound of

•

Check coolant level in the engine

the exhaust or any smell of

coolant reservoir.

• Check the engine oil level.

exhaust fumes in the vehicle.

•

Check the operation of all exterior

• Check coolant level in the engine

•

Check for vibrations in the steering

lights, including the stoplights, turn

coolant reservoir.

wheel. Notice if there is any

signals and hazard warning flashers.

• Check the windshield washer fluid

increased steering effort or loose-

•

Check the inflation pressures of all

level.

ness in the steering wheel, or

tires including the spare for tires

• Check for low or under-inflated

change in its straight-ahead posi-

that are worn, show uneven wear,

tires.

tion.

or are damaged.

•

Notice if your vehicle constantly

•

Check for loose wheel lug nuts.

turns slightly or "pulls" to one side

WARNING

when traveling on smooth, level

Be careful when checking your

road.

engine coolant level when the

•

When stopping, listen and check

engine is hot. This may result in

for unusual sounds, pulling to one

coolant being blown out of the

side, increased brake pedal travel

opening and cause serious

or "hard-to-push" brake pedal.

burns and other injuries.

•

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).

7-6

At least twice a year:

At least once a year:

(i.e., every Spring and Fall)

• Clean body and door drain holes.

• Check radiator, heater and air condi-

• Lubricate door hinges and hood

tioning hoses for leaks or damage.

hinges.

• Check windshield washer spray

• Lubricate door and hood locks and

and wiper operation. Clean wiper

latches.

blades with clean cloth dampened

• Lubricate door rubber weather

with washer fluid.

strips.

• Check headlamp alignment.

• Check the air conditioning system.

• Check muffler, exhaust pipes,

• Inspect and lubricate automatic

shields and clamps.

transmission linkage and controls.

• Check the seat belts for wear and

• Clean the battery and terminals.

function.

• Check the brake fluid level.

7-7

Maintenance

SCHEDULED MAINTENANCE SERVICES

Follow Normal maintenance schedule if the vehicle is usually operated where none of the following conditions apply.

If any of the following conditions apply, you must follow the Maintenance Under Severe Usage Conditions.

• Repeated short distance driving.

• Driving in dusty conditions or sandy areas.

• Extensive use of brakes.

• Driving in areas where salt or other corrosive materials are used.

• Driving on rough or muddy roads.

• Driving in mountainous areas.

• Extended periods of idling or low speed operation.

• Driving for a prolonged period in cold temperatures and/or extremely humid climates.

• More than 50% driving in heavy city traffic during hot weather above 90°F (32°C).

For additional information or assistance see your authorized HYUNDAI dealer.

7-8

Normal maintenance schedule

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.

7,500 miles (12,000 km) or 6 months

15,000 miles (24,000 km) or 12 months

❑ Inspect air cleaner filter

❑ Inspect HSG belt *2

(15,000 miles (24,000 km) or 24 months)

(7,500 miles (12,000 km) or 12 months)

❑ Inspect vacuum hose

❑ Inspect air conditioning refrigerant

❑ Air intake hose

❑ Inspect brake hoses and lines

❑ Replace engine oil and filter

❑ Inspect drive shafts and boots

(7,500 miles (12,000 km) or 12 months)

❑ Inspect exhaust pipe and muffler

❑ Add fuel additive *1

❑ Inspect front brake disc/pads, calipers

(7,500 miles (12,000 km) or 12 months)

❑ Inspect rear brake disc/pads

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

❑ Inspect steering gear box, linkage & boots/lower arm ball

of additive is recommended. Additives are available from

joint, upper arm ball joint

your authorized HYUNDAI dealer along with information on

❑ Inspect suspension mounting bolts

how to use them. Do not mix other additives.

❑ Air intake hose

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

❑ Replace climate control air filter

wear or oil saturation and replace if necessary. If drive belt

(for evaporator and blower unit)

noise occurred, readjust drive belt tension before replace.

❑ Replace engine oil and filter

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

(15,000 miles (24,000 km) or 24 months)

replace.

(Continued)

7-9

Maintenance

Normal maintenance schedule (CONT.)

(Continued)

22,500 miles (36,000 km) or 18 months

❑ Add fuel additive *1

❑ Inspect air cleaner filter

(15,000 miles (24,000 km) or 24 months)

❑ Inspect vacuum hose

❑ Air intake hose

❑ Inspect HSG belt *2

*1 : If TOP TIER Detergent Gasoline is not available, one bottle

of additive is recommended. Additives are available from

(22,500 miles (36,000 km) or 36 months)

your authorized HYUNDAI dealer along with information on

❑ Replace engine oil and filter

how to use them. Do not mix other additives.

(22,500 miles (36,000 km) or 36 months)

*2 : Inspect HSG belt for evidence of cuts, crocks, excessive

❑ Add fuel additive *1

wear or oil saturation and replace if necessary. If drive belt

(22,500 miles (36,000 km) or 36 months)

noise occurred, readjust drive belt tension before replace.

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

replace.

of additive is recommended. Additives are available from

your authorized HYUNDAI dealer along with information on

how to use them. Do not mix other additives.

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

wear or oil saturation and replace if necessary. If drive belt

noise occurred, readjust drive belt tension before replace.

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

replace.

7-10

Normal maintenance schedule (CONT.)

30,000 miles (48,000 km) or 24 months

(Continued)

❑ Replace air cleaner filter

❑ Inspect vacuum hose

❑ Replace engine oil and filter

❑ Inspect air conditioning refrigerant

(30,000 miles (48,000 km) or 48 months)

❑ Inspect brake hoses and lines

❑ Add fuel additive *1

❑ Inspect drive shafts and boots

(30,000 miles (48,000 km) or 48 months)

❑ Inspect exhaust pipe and muffler

❑ Inspect HSG belt *2

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

(30,000 miles (48,000 km) or 48 months)

of additive is recommended. Additives are available from

❑ Inspect front brake disc/pads, calipers

your authorized HYUNDAI dealer along with information on

❑ Inspect rear brake disc/pads

how to use them. Do not mix other additives.

❑ Inspect steering gear box, linkage & boots/lower arm ball

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

joint, upper arm ball joint

wear or oil saturation and replace if necessary. If drive belt

❑ Inspect suspension mounting bolts

noise occurred, readjust drive belt tension before replace.

❑ Inspect brake fluid

*3 :Fuel filter & Fuel tank air filter are considered to be mainte-

❑ Inspect fuel filter *3

nance free but periodic inspection is recommended for this

maintenance schedule depends on fuel quality. If there are

❑ Inspect fuel cap, fuel lines, fuel hoses and connections

some important safety matters like fuel flow restriction,

❑ Inspect fuel tank air filter (if equipped) *3

surging, loss of power, hard starting problem etc, replace

❑ Inspect parking brake

the fuel filter immediately regardless of maintenance sched-

❑ Inspect vapor hose and fuel filler cap

ule and consult an authorized HYUNDAI dealer for details.

❑ Air intake hose

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

❑ Replace climate control air filter

replace.

(for evaporator and blower unit)

(Continued)

7-11

Maintenance

Normal maintenance schedule (CONT.)

37,500 miles (60,000 km) or 30 months

45,000 miles (72,000 km) or 36 months

❑ Inspect air cleaner filter

❑ Inspect HSG belt *2

❑ Inspect vacuum hose

(37,500 miles (60,000 km) or 60 months)

❑ Inspect air conditioning refrigerant

❑ Inspect vacuum hose

❑ Inspect brake hoses and lines

❑ Air intake hose

❑ Inspect drive shafts and boots

❑ Replace engine oil and filter

❑ Inspect exhaust pipe and muffler

(37,500 miles (60,000 km) or 60 months)

❑ Inspect front brake disc/pads, calipers

❑ Add fuel additive *1

❑ Inspect HSG belt *2

(37,500 miles (60,000 km) or 60 months)

(45,000 miles (72,000 km) or 72 months)

❑ Inspect rear brake disc/pads

*1 : If TOP TIER Detergent Gasoline is not available, one bottle

❑ Inspect steering gear box, linkage & boots/lower arm ball

of additive is recommended. Additives are available from

joint, upper arm ball joint

your authorized HYUNDAI dealer along with information on

❑ Inspect suspension mounting bolts

how to use them. Do not mix other additives.

❑ Air intake hoses

*2 : Inspect HSG belt for evidence of cuts, crocks, excessive

❑ Replace climate control air filter

wear or oil saturation and replace if necessary. If drive belt

(for evaporator and blower unit)

noise occurred, readjust drive belt tension before replace.

❑ Replace engine oil and filter

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

(45,000 miles (72,000 km) or 72 months)

replace.

❑ Add fuel additive *1

(45,000 miles (72,000 km) or 72 months)

7-12

Normal maintenance schedule (CONT.)

52,500 miles (84,000 km) or 42 months

60,000 miles (96,000 km) or 48 months

❑ Inspect air cleaner filter

❑ Inspect vacuum hose

❑ Inspect HSG belt *2

❑ Inspect air conditioning refrigerant

(52,500 miles (84,000 km) or 84 months)

❑ Inspect brake hoses and lines

❑ Inspect vacuum hose

❑ Inspect drive shafts and boots

❑ Air intake hose

❑ Inspect exhaust pipe and muffler

❑ Replace engine oil and filter

❑ Inspect front brake disc/pads, calipers

(52,500 miles (84,000 km) or 84 months)

❑ Inspect rear brake disc/pads

❑ Add fuel additive *1

❑ Inspect steering gear box, linkage & boots/lower arm ball

(52,500 miles (84,000 km) or 84 months)

joint, upper arm ball joint

❑ Inspect suspension mounting bolts

*1 : If TOP TIER Detergent Gasoline is not available, one bottle

❑ Inspect brake fluid

of additive is recommended. Additives are available from

❑ Inspect fuel filter *3

your authorized HYUNDAI dealer along with information on

❑ Inspect fuel cap, fuel lines, fuel hoses and connections

how to use them. Do not mix other additives.

❑ Inspect fuel tank air filter (if equipped) *3

*2 : Inspect HSG belt for evidence of cuts, crocks, excessive

❑ Inspect parking brake

wear or oil saturation and replace if necessary. If drive belt

❑ Inspect vapor hose and fuel filler cap

noise occurred, readjust drive belt tension before replace.

❑ Replace HSG belt *2

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

(60,000 miles (96,000 km) or 48 months)

replace.

❑ Air intake hose

❑ Replace climate control air filter

(for evaporator and blower unit)

(Continued)

7-13

Maintenance

Normal maintenance schedule (CONT.)

(Continued)

67,500 miles (108,000 km) or 54 months

❑ Replace air cleaner filter

❑ Inspect air cleaner filter

❑ Replace engine oil and filter

❑ Inspect HSG belt *2

(60,000 miles (96,000 km) or 96 months)

(67,500 miles (108,000 km) or 108 months)

❑ Add fuel additive *1

❑ Inspect vacuum hose

(60,000 miles (96,000 km) or 96 months)

❑ Air intake hose

❑ Replace engine oil and filter

*1 : If TOP TIER Detergent Gasoline is not available, one bottle

(67,500 miles (108,000 km) or 108 months)

of additive is recommended. Additives are available from

❑ Add fuel additive *1

your authorized HYUNDAI dealer along with information on

(67,500 miles (108,000 km) or 108 months)

how to use them. Do not mix other additives.

*2 : Inspect HSG belt for evidence of cuts, crocks, excessive

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

wear or oil saturation and replace if necessary. If drive belt

of additive is recommended. Additives are available from

noise occurred, readjust drive belt tension before replace.

your authorized HYUNDAI dealer along with information on

how to use them. Do not mix other additives.

*3 : Fuel filter & Fuel tank air filter are considered to be mainte-

nance free but periodic inspection is recommended for this

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

maintenance schedule depends on fuel quality. If there are

wear or oil saturation and replace if necessary. If drive belt

some important safety matters like fuel flow restriction,

noise occurred, readjust drive belt tension before replace.

surging, loss of power, hard starting problem etc, replace

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

the fuel filter immediately regardless of maintenance sched-

replace.

ule and consult an authorized HYUNDAI dealer for details.

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

replace.

7-14

Normal maintenance schedule (CONT.)

75,000 miles (120,000 km) or 60 months

82,500 miles (132,000 km) or 66 months

❑ Inspect air cleaner filter

❑ Inspect vacuum hose

❑ Inspect HSG belt *2

❑ Inspect air conditioning refrigerant

(82,500 miles (132,000 km) or 132 months)

❑ Inspect brake hoses and lines

❑ Inspect vacuum hose

❑ Inspect drive shafts and boots

❑ Air intake hose

❑ Inspect exhaust pipe and muffler

❑ Replace engine oil and filter

❑ Inspect front brake disc/pads, calipers

(82,500 miles (132,000 km) or 132 months)

❑ Inspect rear brake disc/pads

❑ Add fuel additive *1

❑ Inspect steering gear box, linkage & boots/lower arm ball

(82,500 miles (132,000 km) or 132 months)

joint, upper arm ball joint

❑ Inspect suspension mounting bolts

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

❑ Inspect HSG belt *2

of additive is recommended. Additives are available from

(75,000 miles (120,000 km) or 120 months)

your authorized HYUNDAI dealer along with information on

how to use them. Do not mix other additives.

❑ Air intake hose

❑ Replace climate control air filter

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

wear or oil saturation and replace if necessary. If drive belt

(for evaporator and blower unit)

noise occurred, readjust drive belt tension before replace.

❑ Replace engine oil and filter

(75,000 miles (120,000 km) or 120 months)

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

replace.

❑ Add fuel additive *1

(75,000 miles (120,000 km) or 120 months)

7-15

Maintenance

Normal maintenance schedule (CONT.)

90,000 miles (144,000 km) or 72 months

(Continued)

❑ Inspect vacuum hose

❑ Replace engine oil and filter

❑ Inspect air conditioning refrigerant

(90,000 miles (144,000 km) or 144 months)

❑ Inspect brake hoses and lines

❑ Add fuel additive *1

❑ Inspect drive shafts and boots

(90,000 miles (144,000 km) or 144 months)

❑ Inspect exhaust pipe and muffler

❑ Inspect front brake disc/pads, calipers

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

❑ Inspect rear brake disc/pads

of additive is recommended. Additives are available from

❑ Inspect steering gear box, linkage & boots/lower arm ball

your authorized HYUNDAI dealer along with information on

how to use them. Do not mix other additives.

joint, upper arm ball joint

❑ Inspect suspension mounting bolts

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

wear or oil saturation and replace if necessary. If drive belt

❑ Inspect brake fluid

noise occurred, readjust drive belt tension before replace.

❑ Inspect fuel filter *3

❑ Inspect fuel cap, fuel lines, fuel hoses and connections

*3 :Fuel filter & Fuel tank air filter are considered to be mainte-

nance free but periodic inspection is recommended for this

❑ Inspect fuel tank air filter (if equipped) *3

maintenance schedule depends on fuel quality. If there are

❑ Inspect parking brake

some important safety matters like fuel flow restriction,

❑ Inspect vapor hose and fuel filler cap

surging, loss of power, hard starting problem etc, replace

❑ Inspect HSG belt *2

the fuel filter immediately regardless of maintenance sched-

(90,000 miles (144,000 km) or 144 months)

ule and consult an authorized HYUNDAI dealer for details.

❑ Air intake hose

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

❑ Replace climate control air filter

replace.

(for evaporator and blower unit)

❑ Replace air cleaner filter

(Continued)

7-16

Normal maintenance schedule (CONT.)

97,500 miles (156,000 km) or 78 months

105,000 miles (168,000 km) or 84 months

❑ Inspect air cleaner filter

❑ Inspect HSG belt *2

❑ Inspect vacuum hose

(97,500 miles (156,000 km) or 156 months)

❑ Inspect air conditioning refrigerant

❑ Inspect vacuum hose

❑ Inspect brake hoses and lines

❑ Air intake hose

❑ Inspect drive shafts and boots

❑ Replace engine oil and filter

❑ Inspect exhaust pipe and muffler

(97,500 miles (156,000 km) or 156 months)

❑ Inspect front brake disc/pads, calipers

❑ Add fuel additive *1

❑ Inspect rear brake disc/pads

(97,500 miles (156,000 km) or 156 months)

❑ Inspect steering gear box, linkage & boots/lower arm ball

joint, upper arm ball joint

❑ Inspect suspension mounting bolts

*1 : If TOP TIER Detergent Gasoline is not available, one bottle

of additive is recommended. Additives are available from

❑ Inspect HSG belt *2

your authorized HYUNDAI dealer along with information on

(105,000 miles (168,000 km) or 168 months)

how to use them. Do not mix other additives.

❑ Air intake hose

*2 : Inspect HSG belt for evidence of cuts, crocks, excessive

❑ Replace climate control air filter

wear or oil saturation and replace if necessary. If drive belt

(for evaporator and blower unit)

noise occurred, readjust drive belt tension before replace.

❑ Replace spark plugs (iridium coated)

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

❑ Replace engine oil and filter

replace.

(105,000 miles (168,000 km) or 168 months)

❑ Add fuel additive *1

(105,000 miles (168,000 km) or 168 months

7-17

Maintenance

Normal maintenance schedule (CONT.)

112,500 miles (180,000 km) or 90 months

120,000 miles (192,000 km) or 96 months

❑ Inspect air cleaner filter

❑ Inspect vacuum hose

❑ Inspect HSG belt *2

❑ Inspect air conditioning refrigerant

(112,500 miles (180,000 km) or 180 months)

❑ Inspect brake hoses and lines

❑ Inspect vacuum hose

❑ Inspect drive shafts and boots

❑ Air intake hose

❑ Inspect exhaust pipe and muffler

❑ Replace engine oil and filter

❑ Inspect front brake disc/pads, calipers

(112,500 miles (180,000 km) or 180 months)

❑ Inspect rear brake disc/pads

❑ Add fuel additive *1

❑ Inspect steering gear box, linkage & boots/lower arm ball

(112,500 miles (180,000 km) or 180 months

joint, upper arm ball joint

❑ Inspect suspension mounting bolts

❑ Inspect brake fluid

*1 : If TOP TIER Detergent Gasoline is not available, one bottle

of additive is recommended. Additives are available from

❑ Inspect fuel filter *3

your authorized HYUNDAI dealer along with information on

❑ Inspect fuel cap, fuel lines, fuel hoses and connections

how to use them. Do not mix other additives.

❑ Inspect fuel tank air filter (if equipped) *3

*2 : Inspect HSG belt for evidence of cuts, crocks, excessive

❑ Inspect parking brake

wear or oil saturation and replace if necessary. If drive belt

❑ Inspect vapor hose and fuel filler cap

noise occurred, readjust drive belt tension before replace.

❑ Air intake hose

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

❑ Replace climate control air filter

replace.

(for evaporator and blower unit)

❑ Replace air cleaner filter

❑ Replace engine oil and filter

(120,000 miles (192,000 km) or 192 months)

(Continued)

7-18

Normal maintenance schedule (CONT.)

(Continued)

127,500 miles (204,000 km) or 102 months

❑ Replace engine coolant

❑ Inspect air cleaner filter

(First, 120,000 miles (192,000 km) or 120 months

❑ Inspect HSG belt *2

after every 30,000 miles (48,000 km) or 24 months)

(127,500 miles (204,000 km) or 204 months)

❑ Replace inverter coolant

❑ Inspect vacuum hose

(First, 120,000 miles (192,000 km) or 120 months

❑ Air intake hose

after every 30,000 miles (48,000 km) or 24 months)

❑ Replace engine oil and filter

❑ Add fuel additive *1

(127,500 miles (204,000 km) or 204 months)

(120,000 miles (192,000 km) or 192 months)

❑ Add fuel additive *1

(127,500 miles (204,000 km) or 204 months)

*1 : If TOP TIER Detergent Gasoline is not available, one bottle

of additive is recommended. Additives are available from

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

your authorized HYUNDAI dealer along with information on

of additive is recommended. Additives are available from

how to use them. Do not mix other additives.

your authorized HYUNDAI dealer along with information on

*2 : Inspect HSG belt for evidence of cuts, crocks, excessive

how to use them. Do not mix other additives.

wear or oil saturation and replace if necessary. If drive belt

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

noise occurred, readjust drive belt tension before replace.

wear or oil saturation and replace if necessary. If drive belt

*3 : Fuel filter & Fuel tank air filter are considered to be mainte-

noise occurred, readjust drive belt tension before replace.

nance free but periodic inspection is recommended for this

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

maintenance schedule depends on fuel quality. If there are

replace.

some important safety matters like fuel flow restriction,

surging, loss of power, hard starting problem etc, replace

the fuel filter immediately regardless of maintenance sched-

ule and consult an authorized HYUNDAI dealer for details.

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

replace.

7-19

Maintenance

Normal maintenance schedule (CONT.)

135,000 miles (216,000 km) or 108 months

142,500 miles (228,000 km) or 114 months

❑ Inspect air cleaner filter

❑ Inspect vacuum hose

❑ Inspect HSG belt *2

❑ Inspect air conditioning refrigerant

(142,500 miles (228,000 km) or 228 months)

❑ Inspect brake hoses and lines

❑ Inspect vacuum hose

❑ Inspect drive shafts and boots

❑ Air intake hose

❑ Inspect exhaust pipe and muffler

❑ Replace engine oil and filter

❑ Inspect front brake disc/pads, calipers

(142,500 miles (228,000 km) or 228 months)

❑ Inspect rear brake disc/pads

❑ Add fuel additive *1

❑ Inspect steering gear box, linkage & boots/lower arm ball

(142,500 miles (228,000 km) or 228 months)

joint, upper arm ball joint

❑ Inspect suspension mounting bolts

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

❑ Inspect HSG belt *2

of additive is recommended. Additives are available from

(135,000 miles (216,000 km) or 216 months)

your authorized HYUNDAI dealer along with information on

how to use them. Do not mix other additives.

❑ Air intake hose

❑ Replace climate control air filter

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

wear or oil saturation and replace if necessary. If drive belt

(for evaporator and blower unit)

noise occurred, readjust drive belt tension before replace.

❑ Replace engine oil and filter

(135,000 miles (216,000 km) or 216 months)

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

replace.

❑ Add fuel additive *1

(135,000 miles (216,000 km) or 216 months)

7-20

Normal maintenance schedule (CONT.)

150,000 miles (240,000 km) or 120 months

(Continued)

❑ Inspect vacuum hose

❑ Replace engine coolant

❑ Inspect air conditioning refrigerant

(First, 120,000 miles (192,000 km) or 120 months

❑ Inspect brake hoses and lines

after every 30,000 miles (48,000 km) or 24 months)

❑ Inspect drive shafts and boots

❑ Replace inverter coolant

❑ Inspect exhaust pipe and muffler

(First, 120,000 miles (192,000 km) or 120 months

❑ Inspect front brake disc/pads, calipers

after every 30,000 miles (48,000 km) or 24 months)

❑ Inspect rear brake disc/pads

❑ Add fuel additive *1

❑ Inspect steering gear box, linkage & boots/lower arm ball

(150,000 miles (240,000 km) or 240 months)

joint, upper arm ball joint

❑ Inspect suspension mounting bolts

*1 :If TOP TIER Detergent Gasoline is not available, one bottle

❑ Inspect brake fluid

of additive is recommended. Additives are available from

❑ Inspect fuel filter *3

your authorized HYUNDAI dealer along with information on

how to use them. Do not mix other additives.

❑ Inspect fuel lines, fuel hoses and connections

❑ Inspect fuel tank air filter (if equipped) *3

*2 :Inspect HSG belt for evidence of cuts, crocks, excessive

wear or oil saturation and replace if necessary. If drive belt

❑ Inspect parking brake

noise occurred, readjust drive belt tension before replace.

❑ Inspect vapor hose and fuel filler cap

*3 :Fuel filter & Fuel tank air filter are considered to be mainte-

❑ Inspect HSG belt *2

nance free but periodic inspection is recommended for this

(150,000 miles (240,000 km) or 240 months)

maintenance schedule depends on fuel quality. If there are

❑ Air intake hose

some important safety matters like fuel flow restriction,

surging, loss of power, hard starting problem etc, replace

❑ Replace climate control air filter

the fuel filter immediately regardless of maintenance sched-

(for evaporator and blower unit)

ule and consult an authorized HYUNDAI dealer for details.

❑ Replace air cleaner filter

❈ Inspect : Inspect and if necessary, adjust, correct, clean or

❑ Replace engine oil and filter

replace.

(150,000 miles (240,000 km) or 240 months)

(Continued)

No check, No service required

❑ Automatic transmission fluid

7-21

Hyundai Sonata Plug-in Hybrid (2017 year). Manual - part 34