2021 HYUNDAI SONATA HYBRID transmission oil

02
2-11
RECOMMENDED LUBRICANTS AND CAPACITIES
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)
4.5 US qt. (4.3 ℓ)API Lastest (SN PLUS) *3
Automatic transmission fluid6.3 US qt. (6.0 ℓ)
MICHANG ATF SP-IV, SK ATF SP IV,
NOCA ATF SP-IV, S-oil ATF SP-IV
HYUNDAI genuine ATF SP-IV
or other brands meeting the
above specification approved by
HYUNDAI Motor Co.
Coolant
8.6 US qt. (8.18 ℓ)Mixture of antifreeze and distilled
water (Ethylene glycol with
phosphate based coolant)
Brake fluid
*4required amount DOT-4
Fuel
13.2 gal. (50 ℓ)Refer to “Fuel requirements” in
chapter 1.
*1 : Refer to the recommended SAE viscosity numbers on page 12.
*2 : Engine oils labeled Energy Conserving Oil are now available. Along with other additional
benefits, they contribute to fuel economy by reducing the amount of fuel necessary
to overcome engine friction. Often, these improvements are difficult to measure in
everyday driving, but in a year’s time, they can offer significant cost and energy savings.
*3 : If the recommended engine oil is not available in your country, you are able to use API
SL/ILSAC GF-3 or ACEA A3.
*4 : To maintain the best braking performance and ABS/ESC performance, we recommend
that you use genuine brake fluid that conform to specifications. (Standard : SAE J1704
DOT-4 LV, ISO4925 CLASS-6 and FMVSS 116 DOT-4)

Instrument Cluster
4
Instrument Cluster ........................................................................\
....................4-4Instrument Cluster Control ........................................................................\
..................4-5
Adjusting instrument cluster illumination ................................................................4-5
Gauges and Meters ........................................................................\
..............................4-5
Speedometer ........................................................................\
.....................................4-5
Power gauge ........................................................................\
......................................4-5
Hybrid battery SOC (State of Charge) gauge ..........................................................4-6
Fuel gauge ........................................................................\
.........................................4-6
Outside temperature gauge ........................................................................\
..............4 -7
Odometer ........................................................................\
..........................................4-8
Range ........................................................................\
.................................................4-8
Transmission Shift Indicator ........................................................................\
...............4-9
Automatic transmission shift indicator ...................................................................4-9
Warning and Indicator Lights ........................................................................\
............4-10
Air Bag Warning Light ........................................................................\
......................4-10
Seat Belt 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 ........................4-11
Electronic Parking Brake (EPB) Warning Light .......................................................4-12
AUTO HOLD Indicator Light ........................................................................\
............4-12
Electric Power Steering (EPS) Warning Light .........................................................4-12
Malfunction Indicator Lamp (MIL) ........................................................................\
..4-13
Charging System Warning Light ........................................................................\
.....4-13
Engine Oil Pressure Warning Light ........................................................................\
.4-13
Low Fuel Level Warning Light ........................................................................\
.........4-14
Service warning light ........................................................................\
.......................4-14
Exhaust system (GPF)warning light ........................................................................\
4-14
Master Warning Light ........................................................................\
......................4-15
Low Tire Pressure Warning Light ........................................................................\
....4-15
Electronic Stability Control (ESC) Indicator Light .................................................4-15
Electronic Stability Control (ESC) OFF Indicator Light ..........................................4-16
Immobilizer Indicator Light ........................................................................\
.............4-16
Immobilizer Indicator Light (with smart key) .........................................................4-16
Turn Signal Indicator Light ........................................................................\
...............4-17
Headlamp Warning Light ........................................................................\
.................4-17
4. Instrument Cluster

While Driving
6-36
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
economic.).
• 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
braking performance, even when
you release the accelerator pedal in
SMART SPORT mode. It is because
your vehicle remains in 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 in SMART
ECO mode. Limitation of SMART mode
The SMART mode may be limited in
following situations. (The OFF indicator
illuminates in those situations.)
•
The cruise control is activated :
The cruise control system may
deactivate the SMART mode when
the vehicle is controlled by the set
speed of Smart Cruise Control system.
(SMART mode is not deactivated
just by activating the cruise control
system.)
• 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.

08
8-13
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.
Have 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.
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. But in severe conditions, the
fluid should be changed at an authorized
HYUNDAI dealer in accordance to the
scheduled maintenance at the beginning
of this chapter.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS