2021 HYUNDAI SANTA FE HYBRID Owners Manual

Maintenance
9-6
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 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.
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 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.
• Check the air conditioning system.
• Inspect and lubricate automatic
transmission linkage and controls.
• Clean the battery and terminals.
• Check the brake fluid level.

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 road repeatedly
• Using for towing or camping, and driving with loading on the roof
• Driving as a patrol car, taxi, other commercial use of vehicle towing
• Frequently driving under high speed or rapid acceleration
• Frequently driving in stop-and-go condition
• Engine oil usage which is not recommended (mineral type, semi-synthetic, lower
grade, 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.
SCHEDULED MAINTENANCE SERVICES

Maintenance
9-8
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 1224 3648 60 7284 96108 120 132144 156168 180
Milesx1,000 816 24 3240 48 5664 7280 8896104 112120
Kmx1,000 1326 39 5265 78 91104 117130 143156169 182195
HSG belts
*1
Inspect every 8,000 miles (13,000 km) or 12 months,
and replace every 56,000 miles(90,000 km) or 48 months
Engine oil and engine oil filter
*2 *3
R RRRRRRRRRRRRRR
Fuel additives
*4
Add every 8,000 miles (13,000 km) or 12 months
Air cleaner filter IIR IIR IIR IIR IIR
Spark plugs
Replace every 100,000 miles (160,000 km)
Rotate tires Rotate tires every 8,000 miles (13,000 km)
Climate control air filter IR IR IR IR IR IR IR I
Vacuum hose IIIIIIIIIIIIIII
Engine coolant / Inverter coolant At first, replace at 80,000 miles (130,000 km) or 10 years.
After that, replace every 24,000 miles (39,000 km) or 24 monthsI : 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

09
9-9
MAINTENANCE

INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 1224 3648 60 7284 96108 120 132144 156168 180
Milesx1,000 816 24 3240 48 5664 7280 8896104 112120
Kmx1,000 1326 39 5265 78 91104 117130 143156169 182195
Battery condition IIIIIIIIIIIIIII
Brake lines, hoses and connections IIIIIIIIIIIIIII
Disc brakes and pads IIIIIIIIIIIIIII
Steering gear rack, linkage and boots IIIIIIIIIIIIIII
Driveshaft and boots IIIIIIIIIIIIIIISuspension 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 IIII : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.Normal Maintenance Schedule (CONT.)

Maintenance
9-10
MAINTENANCE

INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 1224 3648 60 7284 96108 120 132144 156168 180
Milesx1,000 816 24 3240 48 5664 7280 8896104 112120
Kmx1,000 1326 39 5265 78 91104 117130 143156169 182195
Fuel tank air filter
*4
I IIIIII
Fuel lines, hoses and connections IIIIIII
Parking brake IIIIIII
Brake fluid Inspect every 6,000 miles (10,000 km) or 12 months,
Replace every 48,000 miles (80,000 km) or 48 months
Front (AWD) / rear differential oil *
5
I IIIIII
Transfer case oil (AWD) No check, No service required
Propeller shaft IIIIIIIIIIIIIII
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*5 : Fuel filter & Fuel tank air filter are 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.
*6 : Front/rear differential oil should be changed anytime, front/rear differential have been submerged in water.
Normal Maintenance Schedule (CONT.)

09
9-11
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 itemMaintenance
operation Maintenance Intervals Driving
condition
Engine oil and engine oil filter REvery 5,000 miles
(8,000 km) or 6 months D, H, I, L
Air cleaner filter RReplace more
frequently depending on the condition C, E
Spark plugs RReplace more
frequently depending on the condition A, B, H, I, K
HSG (Hybrid Starter &
Generator) belt R
Every 30,000 miles
(48,000 km) or 24 months C, D, E, K
I Every 10,000 miles
(16,000 km) or 12 months
Automatic transmission fluid REvery 62,000 miles
(100,000 km) 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 IInspect 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, E, G, H
Parking brake IInspect more frequently
depending on the condition C, D, G, H

Maintenance
9-12
Maintenance itemMaintenance
operation Maintenance Intervals Driving
condition
Driveshaft and boots IEvery 5,000 miles
(8,000 km) or 6 months C, D, E, F, G,
H, I, J
Propeller shaft IInspect more frequently
depending on the condition C, D, E, F, G,
H, I, J
Climate control air filter
(for evaporator and blower
unit) RReplace more
frequently depending on the condition C, E
Rear differential oil (4WD) RReplace every 72,000
miles (120,000 km) C, D, E, G, H,
I, J
Transfer case oil (4WD) RReplace every 120,000
km (80,000 miles) 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 heavy dust conditions
F. Driving in heavy traffic area
G. Driving on uphill, downhill, or mountain roads repeatedly
H. Using for towing or camping, and driving with loading 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
K. Frequently driving in stop-and-go conditions
L. Engine oil usage which is not recommended(mineral type, semi-synthetic, lower
grade, etc.)

09
9-13
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.
We recommend an authorized HYUNDAI
dealer replace any damaged or leaking
parts immediately.
Fuel filter
A clogged filter can limit the speed
at which the vehicle may be driven,
damage the emission system and cause
multiple issues such as hard starting. If
an excessive amount of foreign matter
accumulates in the fuel tank, the
filter may require replacement more
frequently. After installing a new filter,
run the engine for several minutes,
and check for leaks at the connections.
Fuel filters should be installed by an
authorized HYUNDAI dealer.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Make sure
a new vapor hose or fuel filler cap is
correctly replaced.
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.
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
Automatic transmission fluid should
not be checked under normal usage
conditions.
We recommend that the automatic
transmission fluid is changed by an
authorized HYUNDAI dealer according to
the maintenance schedule.
Engine clutch actuator fluid
The engine clutch actuator fluid level
should be inspected or replaced to the
intervals specified in the maintenance
schedule.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS