
05
5-103
Air conditioning system operation tips
• If the vehicle has been parked in
direct sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
• After sufficient cooling has been
achieved, switch back from the
recirculated air to the fresh outside air
position.
• To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the windows
and sunroof closed.
• Use the air conditioning system every
month for a few minutes to ensure
maximum system performance.
• If you operate the air conditioner
excessively, the difference between
the temperature of the outside air and
that of the windshield could cause
the outer surface of the windshield to
fog up, causing loss of visibility. In this
case, set the mode selection knob to
the
position and set the fan speed
control knob to the lowest speed
setting.
System maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind
the glove box. It filters the dust or other
pollutants that enter the vehicle through
the heating and air conditioning system.
We recommend that the cabin air filter
be replaced by an authorized HYUNDAI
dealer according to the maintenance
schedule.
If the vehicle is being driven in severe
conditions such as dusty or rough roads,
more frequent climate control filter
inspections and changes are required.
If the air flow rate suddenly decreases,
we recommend the system be checked
at an authorized HYUNDAI dealer.

05
5-113
Air conditioning system operation tips
• If the vehicle has been parked in
direct sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
• After sufficient cooling has been
achieved, switch back from the
recirculated air to the fresh outside air
position.
• To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the windows
and sunroof closed.
• Use the air conditioning system every
month for a few minutes to ensure
maximum system performance.
• If you operate the air conditioner
excessively, the difference between
the temperature of the outside air and
that of the windshield could cause
the outer surface of the windshield to
fog up, causing loss of visibility. In this
case, set the mode selection button to
the
position and set the fan speed
control knob to the lowest speed
setting.
System maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind
the glove box. It filters the dust or other
pollutants that enter the vehicle through
the heating and air conditioning system.
We recommend that the cabin air filter
be replaced by an authorized HYUNDAI
dealer according to the maintenance
schedule. If the vehicle is being driven
in severe conditions such as dusty or
rough roads, more frequent climate
control filter inspections and changes are
required.
If the air flow rate suddenly decreases,
we recommend the system be checked
at an authorized HYUNDAI dealer.

09
9-13
Maintenance itemMaintenance
operation Maintenance
intervals Driving
condition
Parking brake (if equipped) IInspect more
frequently depending on the condition C, D, G, H
Drive shafts and boots T-GDI
IEvery 3,000 miles or
6 months C, D, E, F,
G, H, I
EXCEPT
T-GDI IEvery 3,750 miles or
6 months
Climate control air filter
(for evaporator and blower unit) RReplace more
frequently depending on the condition C, E
Automatic transmission fluid RReplace every 60,000
miles (96,000 km) A, C, E, F, G,
H, I, K
Dual clutch transmission fluid RReplace every 62,000
miles (100,000 km) A, C, D, E, F,
G, H, I, J
Front differential oil (AWD) / Rear
differential oil RReplace every 72,000
miles (120,000 km) C, D, E, G,
H, I, J
Transfer case oil (AWD) -No check,
No service required -
Propeller shaft IInspect more
frequently depending on the condition C, D, E, F,
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 10 miles (16 km ) in freezing temperature
B.
Extensiv
e engine idling or low speed driving for long distances
C.
Driving on rough, dus
ty, muddy, unpaved, graveled or saltspread roads
D.
Driving in areas using salt or o
ther corrosive materials or in very cold weather
E.
Driving in the condition of in
flowing sand or dust into engine
F.
Driving in heavy tr
affic area
G.
Driving on uphill, downhill, or moun
tain roads
H.
To
wing a trailer (if equipped)
I.
Driving for pa
trol car, taxi, commercial car or vehicle towing
J.
Driving ov
er 106 mph (170 km/h)
K.
Fr
equently driving in stop-and-go conditions
L.
Engine oil usage which is no
t recommended (mineral, semi-synthetic, lower grade
spec, etc.)

Maintenance
9-46
Instrument panel fuse panel
Fuse NameFuse
Rating Circuit Protected
ISG 15ALow DC-DC Converter (AMP), Instrument Cluster, Front
A/C Control Module, A/V & Navigation Head Unit, Head Up
Display, Audio
RR SEAT(LH) 25A2nd Seat Warmer LH Control Module, 2nd Seat LH Folding
Actuator
CLUSTER 7.5A Instrument Cluster, Head Up Display
MDPS 10AMDPS Unit
❈
MDPS(Mo
tor Driven Power Steering) is the same as
EPS(Electric Power Steering).
A/C 7.5A E/R Junction Block (Blower Relay, PTC Heater Relay)
CHILD LOCK 15A ICM Relay Box (Child Lock/Unlock Relay)
DOOR LOCK 20ADoor Lock Relay, Door Unlock Relay, Tailgate Relay, Driver
Door Unlock Relay
SUNROOF 1 20A
Panorama Sunroof
P/WINDOW LH 25ADriver Safety Power Window Module, Rear Power Window
Switch LH, Rear Safety Power Window LH
MODULE 3 7.5A IBU
MODULE 6 7.5AAudio, A/V & Navigation Head Unit, A/V & Navigation
Keyboard, Front A/C Control Module, Front Wireless
Charger, Electro Chromic Mirror, Low DC-DC Converter
WASHER 15A Multifunction Switch
RR SEAT(RH) 25A2nd Seat Warmer RH Control Module, 2nd Seat RH Folding
Actuator
WIPER RR 15A Rear Wiper Relay, Rear Wiper Motor
AMP 25A Low DC-DC Converter (With AMP)
ACC 7.5AIBU, Front USB Charger, Low DC-DC Converter,
Rear USB Charger LH/RH, IAU (Identity Authentication
Unit)
P/SEAT (PASS) 30A
Passenger Seat Manual Switch
P/SEAT (DRV) 30A
Driver IMS Control Module, Driver Seat Manual Switch
![HYUNDAI SANTA FE 2021 Owners Manual Maintenance
9-48
Engine compartment fuse panel (Engine room junction block)
Type Fuse NameFuse
Rating Circuit Protected
MULTI
FUSE 1 (10P) COOLING FAN1
80A
[BLDC 600W] Cooling Fan Controller
COOLIN HYUNDAI SANTA FE 2021 Owners Manual Maintenance
9-48
Engine compartment fuse panel (Engine room junction block)
Type Fuse NameFuse
Rating Circuit Protected
MULTI
FUSE 1 (10P) COOLING FAN1
80A
[BLDC 600W] Cooling Fan Controller
COOLIN](/manual-img/35/41163/w960_41163-597.png)
Maintenance
9-48
Engine compartment fuse panel (Engine room junction block)
Type Fuse NameFuse
Rating Circuit Protected
MULTI
FUSE 1 (10P) COOLING FAN1
80A
[BLDC 600W] Cooling Fan Controller
COOLING FAN2 60A
[BLDC 400W] Cooling Fan Controller
B+4 50AICU Junction Block (Fuse - MODULE8,
SUNROOF1, AMP, P/WINDOW RH, S/HEATER
DRV/PASS)
B+2 50AICU Junction Block (IPS 8 SPOC+/IPS 10/IPS 11/
IPS 13/IPS 14/IPS 15)
B+3 50AICU Junction Block (Fuse - E-SHIFTER1, P/
SEAT (DRV, P/SEAT (PASS), P/WINDOW LH, RR
SEAT(LH))
BLOWER 40A
Blower Relay
IG2 40A
Start Relay, PCB Block (PDM (IG2) Relay)
ABS 2 30A
ESC Module
MULTI
FUSE 2 (10P) MDPS
100A MDPS Unit
ABS 3 60A
ESC Module
B+6 60A
PCB Block (B+)
DCT 60A
TCM
E-CVVT1 50A
PCB Block (E-CVVT Relay)
REAR HEATED 40A
Rear Heated Relay
INVERTER 40A
AC Inverter Module
E-SHIFTER 1 40A
SCU
FUSE HEATED
MIRROR 10A
Rear Heated Relay, Driver/Passenger Outside
Mirror, Front A/C Control Module
E-CVVT3 20A
PCM, PCB Block (E-CVVT Relay)
E-CVVT2 20A
PCM, PCB Block (E-CVVT Relay)
A/C2 10A
Blower Relay, Front A/C Control Module
VACUUM PUMP2 10A
ESC Module, Vacuum Pump Relay, Vacuum Pump
B+5 50AICU Junction Block (Fuse - DOOR LOCK,
IBU1, IBU2, BRAKE SWITCH, CHILD LOCK, RR
SEAT(RH), SUNROOF2)
EOP2 60A
[G4KP] Electronic Oil Pump