2023 HYUNDAI SONATA maintenance reset

Engine Compartment .................................................................................... 8-3
Maintenance Services ................................................................................... 8-5
Owner’s Responsibility ............................................................................................ 8-5
Owner Maintenance Precautions ............................................................................ 8-5
Owner Maintenance ...................................................................................... 8-6
Owner Maintenance Schedule ................................................................................ 8-6
Scheduled Maintenance Services ................................................................ 8-8
Maintenance Schedule (Smartstream G1.6 T-GDI) ................................................8-8
Maintenance Schedule (Smartstream G2.5 GDI) ..................................................8-12
Maintenance Schedule (Smartstream G2.5 T-GDI) ...............................................8-16
Explanation of Scheduled Maintenance Items ..........................................8-20
Engine Oil ..................................................................................................... 8-23
Checking the Engine Oil Level ............................................................................... 8-23
Checking the Engine Oil and Filter ....................................................................... 8-25
Engine Coolant ............................................................................................. 8-26
Checking the Engine Coolant Level ...................................................................... 8-26
Changing Engine Coolant ...................................................................................... 8-28
Brake Fluid .................................................................................................... 8-29
Checking the Brake Fluid Level ............................................................................. 8-29
Washer Fluid ................................................................................................. 8-30
Checking the Washer Fluid Level .......................................................................... 8-30
Air Cleaner ..................................................................................................... 8-31
Filter Replacement .................................................................................................. 8-31
Climate Control Air Filter ............................................................................. 8-33
Filter Inspection...................................................................................................... 8-33
Filter Replacement ................................................................................................. 8-33
Wiper Blades ................................................................................................ 8-34
Blade Inspection .................................................................................................... 8-34
Blade Replacement ................................................................................................ 8-34
Battery .......................................................................................................... 8-36
For Best Battery Service ........................................................................................ 8-36
Battery Recharging ................................................................................................ 8-37
Reset Features ........................................................................................................ 8-37
8. Maintenance
8

08
8-37
Battery Recharging
WARNING
Always follow these instructions when
recharging your vehicle’s battery to
avoid the risk of SERIOUS INJURY or
DEATH from explosions or acid burns: • Before performing maintenance or
recharging the battery, turn off all
accessories and place the ignition
switch to the LOCK/OFF position.
• Keep all flames, sparks, or smoking
materials away from the battery.
• Always work outdoors or in an area
with plenty of ventilation.
• Wear eye protection when checking
the battery during charging.
• The battery must be removed from
the vehicle and placed in a well
ventilated area.
• Watch the battery during charging,
and stop or reduce the charging
rate if the battery cells begin boiling
violently.
• Vehicle is equipped with the
Absorbent Glass Mat (AGM) battery.
Do not charge the AGM battery with
a general charger. It may damage
or explode the AGM battery. Only
charge the AGM battery with a
charger that has AGM battery
setting.
• The negative battery cable must
be removed first to disconnect
the battery and installed last
to reconnect with the battery.
Disconnect the battery charger in the
following order:
1. Turn off the battery charger main
switch.
2. Unhook the negative clamp from the negative battery terminal.
3. Unhook the positive clamp from the positive battery terminal.
• Always use a genuine HYUNDAI
approved battery when you replace
the battery. By jump starting
After a jump start, idle the engine
with the headlights ON for 20-30
minutes before shutting the engine
off. The vehicle may not restart if you
shut it off before the battery had a
chance to adequately recharge. See
“Jump Starting” in chapter 7 for more
information on jump starting procedures.
Information
An inappropriately disposed battery can be harmful to
the environment and human health. Dispose of the battery
according to your local law(s) or
regulations.
Reset Features
The following items may need to be reset
after the battery has been discharged or
the battery has been disconnected. See
chapter 3 or 4 for: •
Power Windows
• Trip Computer
• Climate Control System
• Clock
• Audio System
• Sunroof

Maintenance
8-40
Tire Rotation
To equalize tread wear, HYUNDAI
recommends that the tires be rotated
according to the maintenance schedule
or sooner if irregular wear develops.
During rotation, check the tires for
correct balance.
When rotating tires, check for uneven
wear and damage. Abnormal wear is
usually caused by incorrect tire pressure,
improper wheel alignment, out-of-
balance wheels, severe braking or severe
cornering. Look for bumps or bulges in
the tread or side of the tire. Replace the
tire if you find any of these conditions.
Replace the tire if fabric or cord is visible.
After rotation, be sure to bring the front
and rear tire pressures to specification
and check lug nut tightness (proper
torque is 11~13 kgf·m [79~94 lbf·ft]).
„„Without a spare tire
ODH073802
Disc brake pads should be inspected for
wear whenever tires are rotated.
Information
Tires that are asymmetrical or
directional can only be installed on
the wheel in one direction. The outside
and inside of an asymmetrical tire is not easily distinguishable. Pay
careful attention to the markings
on the sidewalls of the tires, noting the “outside” marking and also the
rotating direction before installing them on the vehicle.
WARNING
• Do not use the compact spare tire for
tire rotation.
• Do not mix bias ply and radial ply
tires under any circumstances.
This may cause unusual handling
characteristics that may cause loss
of vehicle control resulting in an
accident.
Wheel Alignment and Tire
Balance
The wheels on your vehicle were aligned
and balanced carefully at the factory to
give you the longest tire life and best
overall performance.
In most cases, you will not need to have
your wheels aligned again. However,
if you notice unusual tire wear or your
vehicle pulling one way or the other, the
alignment may need to be reset.
If you notice your vehicle vibrating
when driving on a smooth road, your
wheels may need to be rebalanced.
NOTICE
Improper wheel weights can damage
your vehicle’s aluminum wheels. Use
only approved wheel weights.

I
I-9
M Maintenance Services ............................................................................................ 8-5
Owner Maintenance Precautions ........................................................................ 8-5
Owner’s Responsibility ...................................................................................... 8-5
Manual Climate Control System ....................................................................... 5-105
Mirrors ................................................................................................................. 5-31
Inside Rearview Mirror .................................................................................... 5-31
Reverse Parking Aid Function ......................................................................... 5-41
Side View Mirrors ............................................................................................ 5-39
NNavigation-Based Smart Cruise Control ..........................................................6-122
System Setting and Operation ........................................................................ 6-123
OOwner Maintenance ............................................................................................... 8-6
Owner Maintenance Schedule ............................................................................ 8-6
PPanoramic Sunroof ............................................................................................. 5-46
Closing the Sunroof .......................................................................................... 5-48
Resetting the Sunroof ....................................................................................... 5-49
Sliding the Sunroof........................................................................................... 5-47
Sunroof Open Warning ..................................................................................... 5-49
Sunshade ........................................................................................................... 5-47
Tilting the Sunroof .......................................................................................... 5-47
R
Rear Cross-Traffic Collision Warning (RCCW) / Rear Cross-Traffic Collision-
Avoidance Assist (RCCA) ................................................................................ 6-138
Detecting Sensors ........................................................................................... 6-144
Limitations of the System .............................................................................. 6-145
System Description ........................................................................................ 6-138
System Setting and Activation ....................................................................... 6-139
Warning and System Control ......................................................................... 6-141
Rear View Monitor (RVM) .................................................................................. 5-73
Rear View Monitor - Top View ........................................................................ 5-73
Rear View Monitor with Parking Guidance .....................................................5-73