2023 HYUNDAI TUCSON HYBRID maintenance

Maintenance9-8
Information
• It is normal for engine oil to be consumed during driving. The engine oil level should
be checked on regular basis.
• The engine oil change interval for normal operating conditions is based on the use of
the recommended engine oil specification in chapter 2. If the recommended engine
oil specification is not used, then replace the engine oil according to the maintenance
schedule under severe operating conditions.
• The vehicle may be equipped with the Oil Life Management System that predicts
engine oil life based on the driver’s driving history and alerts the driver to change
engine oil.
- If the deterioration of the engine oil increases depending on the driver’s driving
style, the remaining oil life alert will appear on the instrument cluster before the
normal engine oil replacement interval. Have the engine oil and filter changed by an
authorized HYUNDAI dealer.
- Oil Life Management System works when the recommended engine oil is used.
If the recommended engine oil is not used, replace the engine oil according to the
maintenance schedule under severe usage conditions. Also, check the engine oil level
regularly as this system assumes that the engine oil is being filled norm\
ally.
- Always reset the remaining engine oil life whenever the engine oil is changed.
Otherwise, the indication of remaining Oil life in the Oil Life Management System
may not be accurate.To reset the Oil Change Reminder, select ‘RESET’ from the
instrument cluster or infotainment system screen. Then, select ‘Yes’ when the
message “Reset oil life?” or “Has the engine oil been changed? Press [Yes] to reset
the oil life.” appears on the screen.
- If there is no alert until the maximum maintenance interval, have the vehicle
checked by an authorized HYUNDAI dealer.

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.)

09
9-11
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
Fuel tank air filter IIIIIII
Fuel lines, hoses and connections IIIIIII
Parking brake IIIIIII
Brake fluid Inspect every 8,000miles (13,000km) or 12 months.
Replace every 48,000miles (78,000km) or 48 months
Transfer case oil/rear differential oil *
5
III
Drive shaft IIIIIII
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*5 :
Transfer case oil/rear differential oil should be changed anytime, front/rear differential have been submerged in water.

à Fuel filter is considered to be maintenance free but periodic inspection is recommended for this maintenance schedule
depends on fuel quality. If there are some important safety matters like fuel flow restriction, surging, loss of power, hard
starting problem etc, replace the fuel filter immediately regardless of maintenance schedule and consult an authorized
HYUNDAI dealer for details.
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

09
9-13
Maintenance itemMaintenance
operation Maintenance Intervals Driving
condition
Driveshaft and boots IInspect mor
e frequently
depending on the condition C, D, E, F, G,
H, I, J
Drive shaft IInspect more frequently
depending on the condition C, D, E, F, G,
H, I, J
Cabin air filter
(for evaporator and blower
unit) RReplace more
frequently depending on the condition C, E, G
Rear differential oil (AWD) RReplace every 72,000
miles (120,000 km) C, D, E, G, H,
I, J
Transfer case oil (AWD) RReplace every 72,000
miles (120,000 km) C, D, E, G, H,
I, J
Severe driving conditions
A. Repeatedly driving short distance of less than 5 miles (8 km) in normal temperature or less than 16 miles (10 km) in freezing temperature
B. Extensive engine idling or low speed driving for long distances
C. Driving on rough, dusty, muddy, unpaved, graveled or salt-spread roads
D. Driving in areas using salt or other corrosive materials or in very cold weather
E. Driving in the condition of inflowing sand or dust into engine
F. Driving in heavy traffic area
G. Driving on uphill, downhill, or mountain roads repeatedly
H. Using for towing or camping, and driving with loads on the roof
I. Driving as a patrol car, taxi, other commercial use or vehicle towing
J. Frequently driving under high speed or rapid acceleration/deceleration
K. Frequently driving in stop-and-go conditions
L. Engine oil usage which is not recommended(Mineral type, Semi-synthetic, Lower grade spec, etc.)

Maintenance9-14
Engine Oil and Filter
The engine oil and filter should be
changed at the intervals specified in the
maintenance schedule. If the vehicle
is being driven in severe conditions,
more frequent oil and filter changes are
required.
HSG (Hybrid Starter & Generator)
Belt
The HSG belt should be changed at the
intervals specified in the maintenance
schedule.
Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and
connections for leakage and damage.
Have an authorized HYUNDAI dealer
replace any damaged or leaking parts
immediately.
Fuel Filter
The fuel filter is considered to be
maintenance free but periodic inspection
is recommended for this maintenance
depends on fuel quality. If there are
some important matters like fuel flow
restriction, surging, loss of power, hard
starting problem etc., replace the fuel
filter immediately. Consult an authorized
HYUNDAI dealer for details.
Vapor Hose and Fuel Filler Cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Your
HYUNDAI dealer will help to determine if
replacement is needed.
Air Cleaner Filter
A genuine HYUNDAI air cleaner filter
is recommended when the filter is
replaced.
Spark Plugs
Make sure to install new spark plugs of
the correct heat range.
When assembling parts, be sure to
wipe the inside and outside of the boot
bottom of the ignition coil and the
insulator of the spark plug with a soft
cloth to prevent contamination of the
spark plug insulator.
WARNING
Do not remove spark plugs from the
vehicle when the engine is hot. You
may damage the engine and may also
risk burn injury.
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 maintenance
schedule.
Automatic Transmission Fluid
The automatic transmission fluid level
does not need to be checked under
normal usage conditions.
Have the automatic transmission fluid
changed by an authorized HYUNDAI
dealer according to the maintenance
schedule.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

Maintenance9-16
Checking the Engine Oil Level
Engine oil is used for lubricating,
cooling, and operating various hydraulic
components in the engine. Engine oil
consumption while driving is normal,
and it is necessary to check and refill the
engine oil regularly. Also, check and refill
the oil level within the recommended
maintenance schedule to prevent
deterioration of oil performance.
Check the engine oil following the below
procedure.
1. Follow all of the oil manufacturer’s precautions.
2. Be sure the vehicle is on the level ground in P (Park) with the parking
brake set and the wheels blocked.
3. Turn the engine on and warm the engine up until the coolant
temperature reaches a constant
normal temperature.
4. Turn the engine off, remove the oil filler cap and pull the dipstick out.
Wait for 15 minutes for the oil to return
to the oil pan.
5. Wipe the dipstick clean and re-insert it fully.
ONX4PH091002NONX4PH091002N
6. Pull the dipstick out again and check the level. The level should be between
F (Full) and L (Low).
ONX4H090020ONX4H090020
7. If the oil level is below L, add enough oil to bring the level to F.
Use only the specified engine oil (Refer
to “Recommended Lubricants and
Capacities” section in chapter 2).
NOTICE
To prevent damage to your engine:
• Do not overfill with engine oil. Add oil
in small quantities and recheck level
to ensure engine is not overfilled.
• The engine oil consumption may
increase while you break in a new
vehicle and it will be stabilized after
driving 4,000 miles (6,000 km).
• The engine oil consumption can be
affected by driving habits, climate
conditions, traffic conditions,
oil quality, etc. Therefore, it is
recommended that you inspect the
engine oil level regularly and refill it
if necessary.
ENGINE OIL