2023 HYUNDAI TUCSON HYBRID service

09
9-7
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 driving short distance of less than 5 miles (8 km) in normal temperature or less than 10 miles (16 km) in freezing temperature
• Extensive engine idling or low speed driving for long distances
• Driving on rough, dusty, muddy, unpaved, graveled or salt-spread roads
• Driving in areas using salt or other corrosive materials or in very cold weather
• Driving in heavy dust conditions
• Driving in heavy traffic area
• Driving on uphill, downhill, or mountain roads repeatedly
• Using for towing or camping, and driving with loads on the roof
• Driving as a patrol car, taxi, other commercial use of vehicle towing
• Frequently driving under high speed or rapid acceleration/deceleration
• Frequently driving in stop-and-go conditions
• Engine oil usage which is not recommended (Mineral type, Semi-synthetic, Lower grade spec, etc.)
If your vehicle is operated under the above conditions, you should inspect, replace
or refill more frequently than the following Normal Maintenance Schedule. After the
periods or distance shown in the chart, continue to follow the prescribed maintenance
intervals.
Information
After driving more than 10 years or 100,000 miles, use severe maintenance schedule.
SCHEDULED MAINTENANCE SERVICES

09
9-9
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.
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Milesx1,000 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120
Kmx1,000 13 26 39 52 65 78 91 104 117 130 143 156 169 182 195
HSG belts
*1
Inspect every 8,000 miles (13,000 km) or 12 months.
Replace every 64,000 miles (104,000 km) or 48 months
Engine oil and engine oil filter
*2 *3
RRRRRRRRRRRRRRR
Fuel additives
*4
Add every 8,000 miles (13,000 km) or 12 months
Air cleaner filter I I R I I R I I R I I R I I R
Spark plugs Replace every 48,000 miles (78,000 km)
Rotate tires Rotate tires every 8,000 miles (13,000 km) or 12 months
Cabin air filter I R I R I R I R I R I R I R I
Engine coolant At first, replace at 120,000 miles (200,000 km) or 120 months.
After that, replace every 24,000 miles (40,000 km) or 24 months
Inverter coolant HEV
At first, replace at 120,000 miles (200,000 km) or 120 months.
After that, replace every 24,000 miles (40,000 km) or 24 months
PHEV Replace every 35,000 miles (60,000 km) or 36 months
Intercooler, in/out hose At first, inspect at 5,000 miles (8,000 km) or 6 months,
After that, inspect every 20,000 miles (32,000 km) or 24 months
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*1 :
The drive belt should be replaced when cracks occur or tension is reduced excessively.
*2 :
Requires API SN PLUS (or above) grade engine oil. If a lower grade engine oil is used, then the engine oil and engine oil filter
must be replaced at every 5,000 miles (8,000 km) or 6 months as indicated for severe maintenance condition.
*3 :
As it is normal for engine oil to be consumed during driving, the amount of engine oil should be checked regularly.
*4 :
If TOP TIER Detergent Gasoline is not available, one bottle 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.
Normal Maintenance Schedule

Maintenance9-10
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Milesx1,000 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120
Kmx1,000 13 26 39 52 65 78 91 104 117 130 143 156 169 182 195
Battery (12V) condition
(For plug-in hybrid vehicle) IIIIIIIIIIIIIII
Brake lines, hoses and connections IIIIIIIIIIIIIII
Disc brakes and pads IIIIIIIIIIIIIII
Steering gear rack, linkage and boots IIIIIIIIIIIIIII
Driveshaft and boots IIIIIIIIIIIIIII
Suspension mounting bolts IIIIIIIIIIIIIII
Air conditioner refrigerant IIIIIIIIIIIIIII
Air conditioner compressor IIIIIIIIIIIIIII
Exhaust pipe and muffler IIIIIII
Automatic transmission fluid No check, No service required
Vapor hose, fuel filler cap and fuel tank I I IIIIII : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.Normal Maintenance Schedule (CONT.)

Maintenance9-12
Maintenance Under Severe Usage Conditions
The following items must be serviced more frequently on cars mainly used under severe
driving conditions. Refer to the chart below for the appropriate maintenance intervals.
R : Replace
I : Inspect and if necessary, adjust, correct, clean or replace
Maintenance item Maintenance
operation Maintenance Intervals Driving
condition
Engine oil and engine oil filter R E
very 5,000 miles
(8,000 km) or 6 months D, H, I, L
Air cleaner filter R Replace more
frequently depending on the condition C, E
Spark plugs R Replace more
frequently depending on the condition A, B, F, G, H,
I, K
HSG (Hybrid Starter &
Generator) belt R
Every 30,000 miles
(48,000km) or
24 months B, C, D, E, I, K
I Every 5,000 miles
(8,000km) or
6 months
Automatic transmission fluid R Every 60,000 miles
(96,000km) A, C, D, E, F, G,
H, I, K
Steering gear rack, linkage and
boots IInspect more frequently
depending on the condition C, D, E, F, G,
H, I
Front suspension ball joints I Inspect more frequently
depending on the condition C, D, E, F, G
Disc brakes and pads, calipers
and rotors IInspect more frequently
depending on the
condition C, D, G, H, J, K
Parking brake I Inspect more frequently
depending on the condition C, D, G, H

Maintenance9-18
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the
factory.
Check the antifreeze protection and
coolant level at least once a year, at
the beginning of the winter season and
before traveling to a colder climate.
Checking the Coolant Level
„„Engine coolantEngine coolant
ONX4H090004ONX4H090004
„„Inverter coolantInverter coolant
ONX4H090005ONX4H090005
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen or
deteriorated hoses.
The coolant level should be filled
between the MAX and the MIN marks on
the side of the coolant reservoir when
the engine is cool.
• Engine coolant/Inverter coolant for HEV
- If the coolant level is low, add the
selected anti-freeze according to
the proper coolant mix ratio to bring
the level to the MAX mark, but do
not overfill. • Inverter coolant for PHEV

- If the inverter coolant level for the
PHEV is low, it should be refilled
by an authorized HYUNDAI dealer/
service partner.
If frequent additions are required, see an
authorized HYUNDAI dealer for a cooling
system inspection.
WARNING - Inverter coolant for PHEV
Adding other cooling substances or
water might lead to inverter cooling
system degradation or even failure.
„„Engine coolant capEngine coolant cap
ONX4H090006ONX4H090006
„„Inverter coolant capInverter coolant cap
ONX4H090007ONX4H090007
WARNING
Never remove the engine
coolant cap and/or inverter
coolant cap or the drain plug
while the engine and radiator
are hot. Hot coolant and steam
may blow out under pressure,
causing serious injury.
ENGINE COOLANT/INVERTER COOLANT

Maintenance9-26
Front windshield wiper service
positions
ONX4090038ONX4090038
This vehicle has a “hidden” wiper design
which means that the wipers cannot
be lifted when they are in their bottom
resting position.
1. Within 20 seconds of turning off the engine, lift and hold the wiper lever
up to the MIST (or down to the
)
position for about 2 seconds until the
wipers move to the top wipe position.
2. At this time you can lift the wipers off the windshield.
3. Gently put the wipers back down onto the windshield.
4. Turn the wipers to any ON position to return the wipers to the bottom
resting position.
Type A
OGSR076067OGSR076067
OGSR076066OGSR076066
1. Lift up the wiper blade clip. Then lift up the wiper blade.
2. While pushing the lock (1), pull down the wiper blade (2).
OGSR076068OGSR076068
3. Remove the wiper blade from the wiper arm.
4. Install a new wiper blade assembly in the reverse order of removal.
5. Return the wiper arm on the windshield.

Maintenance9-30
For Best Battery Service
„„Luggage compartmentLuggage compartment
ONX4PH091031NONX4PH091031N
• Keep the battery securely mounted.
• Keep the battery top clean and dry.
• Keep the terminals and connections clean, tight, and coated with
petroleum jelly or terminal grease.
• Rinse any spilled electrolyte from the battery immediately with a solution of
water and baking soda.
• If the vehicle is not going to be used for an extended time, disconnect the
battery cables.
Information - For batteries
marked with UPPER and
LOWER
OHI078084LOHI078084L
If your vehicle is equipped with a battery
marked with LOWER (MIN) and UPPER
(MAX) on the side, you should check the
electrolyte level.
The electrolyte level should be between
LOWER (MIN) and UPPER (MAX).
When the electrolyte level is low, add
distilled (or de-mineralized) water. (Never
add sulfuric acids or other electrolyte).
Be careful not to spill distilled (or
demineralized) water over the battery
surface or other adjacent components.
Also, do not overfill the battery cells.
If not, it may corrode the battery or other
components. Finally, securely close the
cell cap. However, contact an authorized
HYUNDAI dealer for better battery
service.

Maintenance9-32
• The negative battery cable must
be removed first and installed last
when the battery is disconnected.
Disconnect the battery charger in the
following order:
1. Turn off the battery charger main
switch.
2. Unhook the negative clamp from the negative battery terminal.
3. Unhook the positive clamp from the positive battery terminal.
• Use batteries for replacement from
an authorized HYUNDAI dealer.
Hybrid vehicle
The 12V auxiliary battery of the vehicle
is integrated within the high-voltage
battery. The high-voltage battery is
located under the 2nd row seat cushion.
For battery related servicing, have you
the vehicle serviced by an authorized
HYUNDAI dealer.
12V auxiliary battery connector
ONX4H092026LONX4H092026L
Disconnect the 12V auxiliary battery
connector located inside the engine
room compartment to shut down the
power of the 12V auxiliary battery.
Connect the 12V auxiliary battery
connector again after the battery related
maintenance is finished.
CAUTION
• The efficiency of the battery
decreases during low temperature.
If the vehicle is not used for the
extended period of time, park the
vehicle indoors if possible.
• Always keep the battery charged to
the full capacity. The battery case
may damage due to freezing if the
battery capacity is low.
• Do not install unauthorized electrical
devices (for example, lamps,
dashcam, etc.) to a vehicle. It may
discharge the battery.