wheel torque HYUNDAI IONIQ ELECTRIC 2021 Owners Manual

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Main Components
On-Board Charger (OBC) :
A device that charges the high volt-
age battery by converting AC
power from a charging station to
DC power.
• Inverter : A device that transforms
direct current (DC) from the high
voltage battery into alternating cur-
rent (AC) to supply power to the
electric motor and transforms AC
back into DC when available to
charge the high voltage battery.
LDC : An LDC is a Low Voltage
DC-to-DC converter that trans-
forms power from the high voltage
battery to the low voltage battery
(12V) in order to supply electrical
power to the vehicle to operate the
lights, wipers, multimedia, etc. Electric Motor :
A device that con-
verts electrical energy from the
high voltage battery into mechani-
cal energy which is then trans-
ferred as rotational torque to the
wheels in order to drive the vehi-
cle.
Reduction gear : Delivers rota-
tional force of the motor to the tires
at appropriate speeds and torque.
EV Battery (Lithium-ion) : On
board high voltage storage devicewith a capacity up to 64 kWh
❈ OBC : On-Board Charger
❈ LDC : Low Voltage DC-DC
Converter
Do not remove or disassem-
ble high voltage components
and high voltage battery con-
nectors and wires. Also, be
careful not to damage high
voltage components and the
high voltage battery. It may
cause serious injury and sig-
nificantly impact the perform-ance and durability of the
vehicle.
When inspection and mainte-
nance is required for high volt-
age components, contact an
authorized HYUNDAI dealer.
WARNING

5-40
Driving your vehicle
Driving with wheels and tires with
different sizes may cause the ESC
system to malfunction. Before
replacing tires, make sure all fourtires and wheels are the same
size. Never drive the vehicle with
different sized wheels and tiresinstalled.
ESC OFF usage
When Driving
The ESC OFF mode should only be
used briefly to help free the vehicle if
stuck in snow or mud, by temporarily
stopping operation of the ESC, to
maintain wheel torque.
To turn ESC off while driving, press
the ESC OFF button while driving on
a flat road surface. Do not allow wheel(s) of one
axle to spin excessively while
the ESC, ABS, and parking brake
warning lights are displayed.
The repairs would not be cov-
ered by the vehicle warranty.
Reduce vehicle power and do
not spin the wheel(s) excessive-
ly while these lights are dis-
played.
When operating the vehicle on a dynamometer, make sure theESC is turned off (ESC OFF lightilluminated).
Information
Turning the ESC off does not affect
ABS or standard brake system opera-
tion.
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NOTICE
NOTICE
When the ESC is blinking, this indicates the ESC is active:
Drive slowly and NEVER attempt
to accelerate. NEVER turn theESC off while the ESC indicator
light is blinking or you may lose
control of the vehicle resulting inan accident.
WARNING

5-61
Driving your vehicle
5
Lane Keeping Assist system helps
detect lane markers on the road with
a front view camera at the front
windshield, and assists the driver's
steering to help keep the vehicle
between lanes.
When the system detects the vehicle
straying from its lane, it alerts the
driver with a visual and audible warn-ing, while applying a slight counter-
steering torque, trying to help pre-
vent the vehicle from moving out of
its lane.
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OAEE059013L Lane Keeping Assist system is
not a substitute for safe driving
practices, but a convenience
function only. It is the responsi-
bility of the driver to always be
aware of the surroundings and
steer the vehicle.
WARNING
Take the following precautions
when using Lane KeepingAssist system :
Do not turn the steering wheel
suddenly when the steering
wheel is being assisted by thesystem.
LKA system helps to prevent
the driver from moving out of
the lane unintentionally byassisting the driver's steering.
However, the driver should
not solely rely on the system
but always pay attention on
the steering wheel to stay in
the lane.
The operation of LKA system
can be cancelled or not work
properly according to road
condition and surroundings.
Always be cautious whendriving.
(Continued)
WARNING

7-11
7
Maintenance
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Cooling System
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Reduction Gear Fluid
Inspect the reduction gear fluid according to the maintenance sched-
ule.
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
Brake Fluid
Check 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 con-
forming to DOT 4 specification.
Brake Discs, Pads, Calipers
and Rotors
Check the pads for excessive wear,
discs for run out and wear, and
calipers for fluid leakage.
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
vehicle 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 dam-
age.

7-26
Maintenance
Tire Rotation
To equalize tread wear, HYUNDAI recommends that the tires be rotated
every 6,000 km (3,600 miles) 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 pres-
sure, improper wheel alignment, out-
of-balance wheels, severe braking or
severe cornering. Look for bumps or
bulges in the tread or side of tire.
Replace the tire if you find either 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 is11~13 kgf·m [80~94 lbf·ft]).Disc brake pads should be inspected
for wear whenever tires are rotated. Information
Tires that are asymmetrical or direc-
tional 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 side-
walls of the tires, noting the "outside"
marking and also the rotating direc-
tion before installing them on the
vehicle.
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Do not use the compact spare
tire for tire rotation.
Do not mix bias ply and radial
ply tires under any circum-
stances. This may cause
unusual handling characteris-
tics that may cause loss of
vehicle control resulting in anaccident.
WARNING
ODH073802
■ Without a spare tire

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8-2
Specifications & Consumer information
Itemsmm (in)
Overall length4,470 (175.9)
Overall width1,820 (71.6)
Overall height1,475(58)
Front tread1,555 (61.2)
Rear tread 1,564 (61.5)
Wheelbase2,700 (106.3)
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Motor Battery (Lithium-Ion Polymer)Charger (OBC)
Max. Output (kW)
Max. Torque (Nm) Capacity (kWh)Power Output (kW)Voltage (V)Max. Output (kW)
100
295 38.31133197.2
OBC : On-Board Battery Chargers

8-4
Specifications & Consumer informationT
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When replacing tires, use the same type, size, brand, construction and tread pattern originally supplied
with the vehielc. Using tires of a different size can damage the related parts or not work properly.
CAUTION
If your vehicle is not equipped with a compact spare tire, your vehicle will be equipped with a Tire Mobility Kit.
Items Tire SizeWheel Size
Inflation Pressure
kPa (psi)Wheel Lug NutTorque kgf •m
(lbf ft, N m)
Normal LoadMaximum Load
FrontRearFrontRear
Full size tire205/60 R166.5J X 16250 (36)235 (34)250 (36)235 (34)
11~13
(80~94,
108~127)
It is permissible to add 20 kPa (3 psi) to the standard tire pressure specification if colder temperatures are expected soon.
Tires typically loose 7 kPa (1 psi) for every 7°C (12°F) temperature drop. If extreme temperature variations
are expected, recheck your tire pressure as necessary to keep them properly inflated.
An air pressure generally decreases, as you drive up to a high-altitude area above sea level. Thus, if you plan to drive a high-altitude area, check the tire pressures in advance. If necessary, inflate them to a prop-
er level. (Air inflation per altitude: +10 kPa/1 km (+2.4 psi/1 mile).
NOTICE