2021 HYUNDAI TUCSON HYBRID transmission oil

Vehicle Information, Consumer Information and Reporting Safety Defects
2-12
To help achieve proper engine and powertrain performance and durability, use only
lubricants of the proper quality. The correct lubricants also help promote engine
efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
LubricantVolumeClassification
Engine oil
*1 *2
(drain and refill) Recommends5.1 US qt. (4.8 ℓ)SAE 0W-20, API SN PLUS/SP or
ILSAC GF-6
Automatic transmission fluid6.3 US qt. (6 ℓ)
SP4M-1, S-OIL ATF SP4M-1 or
other brands meeting the above
specification approved by
HYUNDAI Motor Co.
Coolant
4.95 US qt. (4.69 ℓ)Mixture of antifreeze and water
(Phosphate-based Ethylene glycol
coolant for aluminum radiator)
Invert Coolant
5.23 US qt. (4.95 ℓ)
Rear differential oil (AWD) 0.56~0.67 US qt. (0.53~0.63 ℓ)HYPOID GEAR OIL API GL-5, SAE
75W/85 (SK HCT-5 GEAR OIL
75W/85 or EQUIVALENT)
Transfer case oil (AWD) 0.65~0.71 US qt.
(0.62~0.68 ℓ)
Brake fluid *3As required SAE J1704 DOT-4 LV, FMVSS 116
DOT-4, ISO4925 CLASS-6
Fuel
54.9 US qt. (52 ℓ)Refer to “Fuel requirements” in
chapter 1.
*1 : Refer to the recommended SAE viscosity numbers on the next page.
*2 : Requires < API SN PLUS (or above) Full synthetic> grade engine oil. If a lower grade
engine oil (mineral oil including Semi-synthetic) is used, then the engine oil and engine
oil filter must be replaced as indicated severe maintenance condition.
*3 : To maintain the best braking performance and ABS/ESC performance, we recommend
that you use genuine brake fluid that conform to specifications.
RECOMMENDED LUBRICANTS AND CAPACITIES

4. Instrument cluster
Instrument cluster
Instrument cluster ........................................................................\
....................4-4Instrument cluster control ........................................................................\
...................4-5
Instrument panel illumination ........................................................................\
...........4-5
Gauges and meters ........................................................................\
..............................4-5
Speedometer ........................................................................\
.....................................4-5
Power gauge ........................................................................\
.....................................4-6
Fuel gauge ........................................................................\
.........................................4-6
Hybrid battery SOC (State of Charge) gauge ...........................................................4 -7
Outside temperature gauge ........................................................................\
..............4 -7
Odometer ........................................................................\
..........................................4-8
Distance to empty ........................................................................\
............................4-8
Fuel economy (for 10.25-inch cluster) ....................................................................4-9
Transmission shift indicator ........................................................................\
................4-9
Automatic transmission shift indicator ...................................................................4-9
Warning and indicator lights ........................................................................\
.............4-10
Seat belt warning light ........................................................................\
....................4-10
Air bag warning light ........................................................................\
.......................4-10
Parking brake & Brake fluid warning light ..............................................................4-10
Regenerative brake warning light ........................................................................\
....4-11
Anti-lock Brake System (ABS) warning light ...........................................................4-11
Electronic Brake Force Distribution (EBD) system warning light .........................4-12
Electric Power Steering (EPS) warning light ..........................................................4-12
Malfunction Indicator Lamp (MIL) ........................................................................\
..4-13
Electronic Parking Brake (EPB) warning light ........................................................4-13
AUTO HOLD indicator light ........................................................................\
.............4-13
Charging system warning light ........................................................................\
.......4-14
Engine oil pressure warning light ........................................................................\
...4-14
Low fuel level warning light ........................................................................\
............4-15
Service warning light ........................................................................\
.......................4-15
Exhaust system (GPF) warning light .......................................................................4-15
Master warning light ........................................................................\
........................4-16
Low tire pressure warning light ........................................................................\
......4-16
Forward Safety warning light ........................................................................\
...........4-17
Lane Safety indicator light ........................................................................\
...............4-17
4 Wheel Drive (4WD) warning light ........................................................................\
.4-17
4 Wheel Drive (4WD) LOCK indicator light ..............................................................4-17
LED headlight warning light ........................................................................\
............4-18
Icy road warning light ........................................................................\
......................4-18
Ready indicator ........................................................................\
................................4-19
EV mode indicator ........................................................................\
...........................4-19
Electronic Stability Control (ESC) indicator light ...................................................4-19
Electronic Stability Control (ESC) OFF indicator light ..........................................4-19
4

Driving your vehicle
6-50
Various driving situations, which you may
encounter in SMART mode
• The driving mode automatically
changes to ECO mode after a certain
period of time, when you gently
depress the accelerator pedal (Your
driving is categorized to be mild.).
• The driving mode automatically
changes from SMART ECO mode
to SMART COMFORT mode after a
certain period of time, when you
sharply or repetitively depress the
accelerator pedal.
• The driving mode automatically
changes to SMART COMFORT mode
with the same driving patterns, when
the vehicle starts to drive on an
upward slope of a certain angle. The
driving mode automatically returns to
SMART ECO mode, when the vehicle
enters a leveled road.
• The driving mode automatically
changes to SMART SPORT, when
you abruptly accelerate the vehicle
or repetitively operate the steering
wheel (Your driving is categorized
to be sporty.). In this mode, your
vehicle drives in a lower gear for
abrupt accelerating/decelerating
and increases the engine brake
performance.
• You may still sense the engine brake
performance, even when you release
the accelerator pedal in SMART
SPORT mode. It is because your
vehicle remains to be in a lower gear
over a certain period of time for next
acceleration. Thus, it is a normal
driving situation, not indicating any
malfunction.
• The driving mode automatically
changes to SMART SPORT mode
only in harsh driving situations. In
most of the normal driving situations,
the driving mode sets to be either
in SMART ECO mode or in SMART
COMFORT mode. Limitation of SMART mode
The SMART mode may be limited in
following situations. (The OFF indicator
illuminates in those situations.)
•
The vehicle is driven using the paddle
shifter (manual shift mode) : SMART
mode is deactivated determining that
the driver wants to drive the vehicle
manually.
• Cruise Control is activated : Cruise
Control may deactivate SMART mode
when the vehicle is controlled by the
set speed of Cruise Control. (SMART
mode is not deactivated just by
turning on Cruise Control)
• The transmission oil temperature is either
extremely low or extremely high : The
SMART mode can be active in most of
the normal driving situations. However,
an extremely high/ low transmission oil
temperature may temporarily deactivate
the SMART mode, because the
transmission condition is out of normal
operation condition.

06
6-67
Driving the vehicle after it has been
parked on a hill
1. With the gear in P (Park), apply your
brakes and hold the brake pedal down
while you:
• Start your engine;
• Shift into gear; and
• Release the parking brake.
2.
Slowly r

emove your foot from the
brake pedal.
3.
Drive slo

wly until the trailer is clear of
the chocks.
4.
St

op and have someone pick up and
store the chocks.
Maintenance when towing a
trailer
Your vehicle will need service more
often when you regularly pull a trailer.
Important items to pay particular
attention to include engine oil,
transmission fluid, axle lubricant and
cooling system fluid. Brake condition
is another important item to frequently
check. If you’re trailering, it’s a good
idea to review these items before
you start your trip. Don’t forget to
also maintain your trailer and hitch.
Follow the maintenance schedule that
accompanied your trailer and check it
periodically. Preferably, conduct the
check at the start of each day’s driving.
Most importantly, all hitch nuts and bolts
should be tight.
NOTICE
To prevent vehicle damage:
• Due to higher load during trailer
usage, overheating might occur on
hot days or during uphill driving.
If the coolant gauge indicates
over-heating, switch off the air
conditioner and stop the vehicle in a
safe area to cool down the engine.
• Do not switch off the engine while
the coolant gauge indicates over-
heating.
(Keep the engine idle to cool down
the engine)
• When towing check transmission
fluid more frequently.
• If your vehicle is not equipped with
an air conditioner, you should install
a condenser fan to improve engine
performance when towing a trailer.

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 R Every 5,000 miles
(8,000 km) or 6 months A, B, C, D, E, F,
G, H, I, J, K, 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 32,000 miles
(48,000km) or 48 months C, D, E, F, G,
I, J, K
I Every 8,000 miles
(13,000km) or 12 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 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, G, H, J, K
Parking brake IInspect more frequently
depending on the condition C, D, G, H

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. 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 installing new spark plugs, be sure
that the ignition coils are clean and free
of any oil or debris. Clean and wipe off
the bottom portion of the ignition coil in
order to prevent any contamination with
the spark plug during installation.
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.
We recommend that the automatic
transmission fluid is changed by an
authorized HYUNDAI dealer according to
the maintenance schedule.
Explanation of schEdulEd maintEnancE itEms