2021 HYUNDAI SONATA HYBRID recommended lubricants

Foreword
1-2
INTRODUCTION
Congratulations, and thank you for choosing HYUNDAI. We are pleased to welcome
you to the growing number of discerning people who drive HYUNDAIs. We are very
proud of the advanced engineering and high-quality construction of each HYUNDAI
we build.
Your Owner’s Manual will introduce you to the features and operation of your new
HYUNDAI. To become familiar with your new HYUNDAI, so that you can fully enjoy it,
read this Owner’s Manual carefully before driving your new vehicle.
This manual contains important safety information and instructions intended to
familiarize you with your vehicle’s controls and safety features so you can safely
operate your vehicle.
This manual also contains information on maintenance designed to enhance safe
operation of the vehicle. It is recommended that all service and maintenance on your
car be performed by an authorized HYUNDAI dealer. HYUNDAI dealers are prepared
to provide high-quality service, maintenance and any other assistance that may be
required.
This Owner’s Manual should be considered a permanent part of your vehicle, and
should be kept in the vehicle so you can refer to it at any time. The manual should stay
with the vehicle if you sell it to provide the next owner with important operating, safety
and maintenance information.
HYUNDAI MOTOR AMERICA
CAUTION
Severe engine and transmission damage may result from the use of poor quality
fuels and lubricants that do not meet HYUNDAI specifications. You must always use
high quality fuels and lubricants that meet the specifications listed on Page 2-11 in
the Vehicle Specifications section of the Owner’s Manual.
Copyright 2020 HYUNDAI Motor America. All rights reserved. No part of this
publication may be reproduced, stored in any retrieval system or transmitted in
any form or by any means without the prior written permission of HYUNDAI Motor
America.

2
2. Vehicle Information
Vehicle Information
Exterior Overview ........................................................................\
......................2-2
Interior Overview
........................................................................\
......................2-4
Instrument Panel Overview
........................................................................\
......2-5
Engine Compartment
........................................................................\
...............2-6
Dimensions
........................................................................\
.................................2-7
Engine specification
........................................................................\
..................2-7
Bulb Wattage
........................................................................\
.............................2-8
Tires and Wheels
........................................................................\
.......................2-9
Volume and Weight
........................................................................\
.................2-10
Air Conditioning System
........................................................................\
..........2-10
Recommended Lubricants and Capacities
.....................................................2-11Recommended SAE Viscosity Number .....................................................................2-12
Vehicle Identification Number (vin) ................................................................2-13
Vehicle Certification Label
........................................................................\
......2-13
Tire Specification and Pressure Label
............................................................2-14
Engine Number
........................................................................\
........................2-14

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)

Maintenance
8-14
Information
Automatic transmission fluid color is red
when new.
As the vehicle is driven, the automatic
transmission fluid will begin to look
darker. This is a normal condition and you
should not judge the need to replace the
fluid based upon the changed color.
NOTICE
The use of a non-specified fluid could
result in transmission malfunction
and failure. Use only the specified
automatic transmission fluid (refer
to “Recommended Lubricants and
Capacities” in chapter 2).
Engine Clutch Actuator Fluid
The engine clutch actuator fluid level
should be inspected or replaced to the
intervals specified in the maintenance
schedule.
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
Brake Fluid
Check the brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX marks
on the side of the reservoir. Use only
hydraulic brake fluid conforming to DOT
4 specification.
Parking Brake
Inspect the parking brake system.
Brake Discs, Pads, Calipers and
Rotors
Check the pads, the disc, and the rotor
for any excessive wear-out. Inspect
calipers for any fluid leakage
Exhaust Pipe and Muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks,
deterioration, or damage. Start
the engine and listen carefully for
any exhaust gas leakage. Tighten
connections or replace parts as
necessary.
Suspension Mounting Bolts
Check the suspension connections for
looseness or damage. Retighten to the
specified torque.
Steering Gear Box, Linkage &
Boots/Lower Arm Ball Joint
With the vehicle stopped and the hybrid
system off, check for excessive free-play
in the steering wheel. Check the linkage
for bends or damage. Check the dust
boots and ball joints for deterioration,
cracks, or damage.
Replace any damaged parts.
Drive Shafts and Boots
Check the drive shafts, boots and clamps
for cracks, deterioration, or damage.
Replace any damaged parts and, if
necessary, repack the grease.
Air Conditioning Refrigerant
Check the air conditioning lines and
connections for leakage and damage.

08
8-15
Checking the Engine Oil Level
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 allow the
engine to reach normal operating
temperature.
4. Turn the engine off and wait about
five minutes for the oil to return to the
oil pan.
5. Pull the dipstick out, wipe it clean, and
re-insert it fully.
ODN8H089002
6. Pull the dipstick out again and check
the level. The level should be between
F (Full) and L (Low).
ODN8H089003
7. If it is near or at 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.
• Do not spill engine oil when adding
or changing engine oil. Use a funnel
to help prevent oil from being spilled
on engine components. Wipe off
spilled oil immediately.
ENGINE OIL

08
8-21
WASHER FLUID
Checking the Washer Fluid Level
ODN8H089006
Check the fluid level in the washer fluid
reservoir and add fluid if necessary. Plain
water may be used if washer fluid is not
available. However, use washer solvent
with antifreeze characteristics in cold
climates to prevent freezing.
WARNING
To prevent serious injury or death, take
the following safety precautions when
using washer fluid:
• Do not use engine coolant or
antifreeze in the washer fluid
reservoir. Engine coolant can
severely obscure visibility when
sprayed on the windshield and
may cause loss of vehicle control
resulting in an accident or damage to
paint and body trim.
• Do not allow sparks or flame to
contact the washer fluid or the
washer fluid reservoir. Washer fluid
may contain alcohol and can be
flammable.
• Do not drink washer fluid and avoid
contact with skin. Washer fluid is
harmful to humans and animals.
• Keep washer fluid away from
children and animals.
WARNING
Do not allow brake fluid to come in
contact with your eyes. If brake fluid
comes in contact with your eyes, flush
your eyes with clean water for at least
15 minutes and get immediate medical
attention.
NOTICE
• Do not allow brake fluid to contact
the vehicle’s body paint, as paint
damage will result.
• Brake fluid, which has been exposed
to open air for an extended time
should NEVER be used as its quality
cannot be guaranteed. It should be
disposed of properly.
• Do not use the wrong kind of brake
fluid. A few drops of mineral based
oil, such as engine oil, in your brake
system can damage brake system
parts.
Information
Use only the specified brake fluid (refer
to “Recommended Lubricants and
Capacities” section in chapter 2).

Index
I-14
P
Panoramic sunroof
........................................................................\
......................5-55
Parking lamp position
........................................................................\
.................5-73
Power brakes
........................................................................\
...............................6-18
Power gauge ........................................................................\
................................... 4-5
Power outlet
........................................................................\
..............................5-120
Power window lock switch
........................................................................\
.........5-54
Pre-tensioner seat belt
........................................................................\
.................3-24
R
Range
........................................................................\
.............................................4-8
Rear Cross-Traffic Collision Warning (RCCW)
................................................6-120
Rear Cross-Traffic Collision Avoidance Assist (RCCA)
...................................6-120
Rear Occupant Alert (ROA) system
....................................................................5-32
Rear seat ........................................................................\
....................................... 3-10
Folding the rear seat
........................................................................\
................3-10
Rear seat head restraints
........................................................................\
..............3-11
Adjusting the height up and down
.................................................................3-12
Rear View Monitor (RVM)
........................................................................\
..........5-84
Recommended cold tire inflation pressures
.........................................................8-26
Recommended lubricants and capacities
.............................................................2-11
Refrigerant label
........................................................................\
........................5-112
Remote start
........................................................................\
...................................6-9
Reporting safety defects
........................................................................\
..............1-11
Reverse Parking Collision-Avoidance Assist (PCA)
...........................................5-95
Reverse Parking Distance Warning (PDW)
.........................................................5-87
Rocking the vehicle
........................................................................\
...................6-132
Rotation (Tire)
........................................................................\
.............................8-27