check engine GENESIS G70 2021 Service Manual

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Driving your vehicle
The ISG system is to help reduce the
fuel consumption by automatically
shutting down the engine, when the
vehicle is at a standstill (i.e. red stop
light, stop sign, and traffic jam).
The engine is automatically started
upon satisfying the starting condi-
tions.
The ISG system is always active,
when the engine is running.
Information
When the engine is automatically
started by the ISG system, some warn-
ing lights (i.e. ABS, ESC, ESC OFF,
EPS, and parking brake warning
light) may illuminate for a few sec-
onds due to the low battery voltage.
However, it does not indicate a mal-
function with the ISG system.
To Activate the ISG System
Prerequisite for activation
The ISG system operates in the fol-
lowing situations.
• The driver's seatbelt is fastened
• The driver's door and hood are
closed
• The brake vacuum pressure is
adequate
• The battery sensor is activated and
the battery is sufficiently charged
• Outside temperature is not too low
or too high
• The vehicle is driven over a con-
stant speed and stops
• The climate control system satis-
fies the conditions
• The vehicle is sufficiently warmed
up
• The incline is gradual
• The steering wheel is turned less
than 180 degrees and then the
vehicle stops
Information
The ISG system is not
activated, when the pre-
requisites to activate the
ISG system are unsatis-
fied. In this case, the ISG OFF but-
ton indicator illuminates, and the
auto stop indicator ( ) illuminates
in yellow on the instrument cluster.
• When the above indicator remains
illuminated on the instrument clus-
ter, we recommend that you have
the IGS system checked by an
authorized retailer of Genesis
Branded products.
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ISG (IDLE STOP AND GO) SYSTEM (IF EQUIPPED)
•

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Driving your vehicle
5
To Deactivate the ISG System
• Press the ISG OFF button to deac-
tivate the ISG system. Then, the
ISG OFF button indicator illumi-
nates.
• Press the ISG OFF button again to
reactivate the ISG system. Then,
the ISG OFF button indicator turns
OFF.
ISG System Malfunction
The ISG system may not operate:
When there is a malfunction with the
ISG sensors or the ISG system.
The followings occur, when there is
a malfunction with the ISG system:
• The auto stop indicator ( ) will
blink in yellow on the instrument
cluster.
• The light on the ISG OFF button
will illuminate.
Information
• When you cannot turn OFF the ISG
OFF button indicator by pressing the
ISG OFF button, or when the mal-
function with the ISG system per-
sists, contact an authorized retailer
of Genesis Branded products.
• You can turn off the ISG OFF but-
ton indicator by driving over 50
mph (80 km/h) for up to 2 hours
with the fan speed below the 2nd
position. If the ISG OFF button
indicator remains ON, contact an
authorized retailer of Genesis
Branded products.
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When the engine is in auto stop
mode, the engine may restart.
Before leaving the vehicle or
checking the engine compart-
ment, stop the engine by press-
ing Engine Start/Stop button to
the OFF position.
WARNING

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Driving your vehicle
The Battery Sensor
Deactivation
The battery sensor is deactivated,
when the battery is disconnected
from the negative pole for mainte-
nance purpose.
In this case, the ISG system is limit-
edly operated due to the battery sen-
sor deactivation. Thus, the driver
needs to take the following proce-
dures to reactivate the battery sen-
sor after disconnecting the battery.
Prerequisites to reactivate the
battery sensor
Keep the engine in the OFF status
for 4 hours, and attempt to restart the
engine 3 to 4 times for the battery-
sensor reactivation.
Pay extreme caution not to connect
any accessories (i.e. navigation and
black box) to the vehicle with the
engine in the OFF status. If not, the
battery sensor may not be reactivat-
ed.
Information
The ISG system may not operate in
the following situations.
- There is a malfunction with the ISG
system.
- The battery is weak.
- The brake vacuum pressure is low.
If this occurs, have the ISG system
checked by an authorized retailer of
Genesis Branded products.• Use only Genesis/Hyundai ISG
battery for replacement. If not,
the ISG system may not normal-
ly operate.
• Do not recharge the ISG battery
with a general battery charger. It
may damage or explode the ISG
battery.
• Do not remove the battery cap.
The battery electrolyte, which is
harmful to the human body, may
leak out.
NOTICE
iOIK057041
Battery sensor

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Driving your vehicle
The Forward Collision-Avoidance
Assist (FCA) system is designed to
help detect and monitor the vehicle
ahead or detect a pedestrian or
cyclist (if equipped) in the roadway
through radar signals and camera
recognition to warn the driver that a
collision is imminent, and if neces-
sary, apply emergency braking.
System Setting and Activation
System setting
• The driver can activate the FCA by
pressing Engine Start/Stop button to
the ON position and by selecting :
'User Settings →Driver Assistance
→Forward Collision-Avoidance
Assist (FCA)'
The FCA deactivates, when the driv-
er deselects the system setting.
The warning light illumi-
nates on the cluster,
when you cancel the FCA
system. The driver can
monitor the FCA ON/OFF status on
the LCD display. Also, the warning
light illuminates when the ESC
(Electronic Stability Control) is
turned off.
If the warning light remains ON when
the FCA is activated, have the sys-
tem checked by an authorized retail-
er of Genesis Branded products.
• The driver can select the initial warn-
ing activation time on the LCD dis-
play.
FORWARD COLLISION-AVOIDANCE ASSIST (FCA) SYSTEM (IF EQUIPPED)
Take the following precautions
when using the Forward Collision-
Avoidance Assist (FCA) system:
•This system is only a supple-
mental system and it is not
intended to, nor does it replace
the need for extreme care and
attention of the driver. The
sensing range and objects
detectable by the sensors are
limited. Pay attention to the
road conditions at all times.
•NEVER drive too fast in accor-
dance with the road condi-
tions or while cornering.
•Always drive cautiously to
prevent unexpected and sud-
den situations from occur-
ring. The Forward Collision-
Avoidance system may not
always stop the vehicle com-
pletely and is only intended to
help mitigate a collision that
is imminent.
WARNING

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Driving your vehicle
5
• NEVER install any accessories
or stickers on the front wind-
shield, nor tint the front wind-
shield.
• NEVER locate any reflective
objects (i.e. white paper, mirror)
over the dashboard. Any light
reflection may cause a malfunc-
tion of the system.
• Pay extreme caution to keep the
camera out of water.
• NEVER disassemble the camera
assembly, nor apply any impact
on the camera assembly.
• Playing the vehicle audio sys-
tem at high volume may offset
the system warning sounds.
Information
Have the system checked by an
authorized retailer of Genesis
Branded products when:
• The windshield glass is replaced.
• The sensor cover or sensor gets
damaged or replaced.
Warning message and warning
light
Forward Collision Avoidance Assist
(FCA) system disabled.
Radar blocked
When the sensor cover is blocked
with dirt, snow, or debris, the FCA
system operation may stop temporar-
ily. If this occurs, a warning message
will appear on the LCD display.
Remove any dirt, snow, or debris and
clean the radar sensor cover before
operating the FCA system.
The FCA may not properly operate in
an area (e.g. open terrain), where
any substances are not detected
after turning ON the engine.
System Malfunction
Check Forward Collision Avoidance
Assist system
• When the FCA is not working prop-
erly, the FCA warning light ( )
will illuminate and the warning
message will appear for a few sec-
onds. After the message disap-
pears, the master warning light
( ) will illuminate. In this case,
have the vehicle inspected by an
authorized retailer of Genesis
Branded products.
• The FCA warning message may
appear along with the illumination
of the ESC (Electronic Stability
Control) warning light.
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NOTICE
OIK057090L
OIK057091L

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Driving your vehicle
Information
• Even though the steering is assisted
by the system, the driver can still
steer to control the steering wheel.
• The steering wheel may feel heavier
when the steering wheel is assisted
by the system than when it is not.
Check Lane Keeping Assist (LKA)
system
If there is a problem with the system
a message will appear for a few sec-
onds. If the problem continues the
LKA system failure indicator will illu-
minate.
LKA system failure indicator
The LKA system failure
indicator (yellow) will illu-
minate if the LKA system
is not working properly.
Have your vehicle
checked by an authorized
retailer of Genesis
Branded products.
When there is a problem with the
system do one of the following:
• Turn the system on after turning
the engine off and on again.
• Check if the Engine Start/Stop but-
ton is in the ON or START position.
• Check if the system is affected by
the weather. (ex: fog, heavy rain,
etc.)
• Check if there is foreign matter on
the camera lens.
If the problem is not solved, have
your vehicle checked by an author-
ized retailer of Genesis Branded
products.
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■Type A■Type B
OIK057121N/OIK057122N
•The driver is responsible for
accurate steering.
•Turn off the system in below
situations.
- In bad weather
- In bad road condition
- When the steering wheel
needs to be controlled by the
driver frequently.
WARNING

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Driving your vehicle
5
Information
• During normal cruise control opera-
tion, when the SET switch is activat-
ed or reactivated after applying the
brakes, the cruise control will ener-
gize after approximately 3 seconds.
This delay is normal.
• Before activating the cruise control
function, the system will check to
verify that the brake switch is oper-
ating normally. Depress the brake
pedal at least once after turning ON
the ignition or starting the engine.
To set Cruise Control speed
1. Press the CRUISE button on the
steering wheel to turn the system
on. The cruise indicator will illumi-
nate.
2. Accelerate to the desired speed,
which must be more than 20 mph
(30 km/h).
Information - Manual
transmission
For manual transmission vehicles, you
should depress the brake pedal at
least once to set the cruise control
after starting the engine.3. Push the toggle switch down
(SET-), and release it. The set
speed on the LCD display will illu-
minate.
4. Release the accelerator pedal.
Information
On a steep slope, the vehicle may
slightly slow down or speed up, while
driving uphill or downhill.
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OIK057023
OIK057022L

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Driving your vehicle
• Driving too fast through large pud-
dles can affect your brakes. If you
must go through puddles, try to
drive through them slowly.
• If you believe your brakes may be
wet, apply them lightly while driv-
ing until normal braking operation
returns.
Hydroplaning
If the road is wet enough and you are
going fast enough, your vehicle may
have little or no contact with the road
surface and actually ride on the
water. The best advice is SLOW
DOWN when the road is wet.
The risk of hydroplaning increas-
es as the depth of tire tread
decreases, refer to "Tire
Replacement" in chapter 7.
Driving in Flooded Areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel
hub. Drive through any water slowly.
Allow adequate stopping distance
because brake performance may be
reduced.
After driving through water, dry the
brakes by gently applying them sev-
eral times while the vehicle is moving
slowly.
Highway Driving
Tires
Adjust the tire inflation, as specified.
Under-inflation may overheat or
damage the tires.
Do not install worn-out or damaged
tires, which may reduce traction or
adversely affect vehicle handling.
This could lead to sudden tire failure
that may cause loss of vehicle con-
trol resulting in an accident.
Information
Never over-inflate your tires above the
maximum inflation pressure, as speci-
fied on your tires.
Fuel, engine coolant and engine
oil
Driving at higher speeds on the high-
way consumes more fuel and is less
efficient than driving at a slower,
more moderate speed. Maintain a
moderate speed in order to conserve
fuel when driving on the highway.
Be sure to check both the engine
coolant level and the engine oil
before driving.
Drive belt
A loose or damaged drive belt may
overheat the engine.
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Driving your vehicle
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WINTER DRIVING
The severe weather conditions of
winter quickly wear out tires and
cause other problems. To minimize
winter driving problems, you should
take the following suggestions:
Snow or Icy Conditions
You need to keep sufficient distance
between your vehicle and the vehicle
in front of you.
Apply the brakes gently. Speeding,
rapid acceleration, sudden brake
applications, and sharp turns are
potentially very hazardous practices.
During deceleration, use engine
braking to the fullest extent. Sudden
brake applications on snowy or icy
roads may cause the vehicle to skid.
To drive your vehicle in deep snow, it
may be necessary to use snow tires
or to install tire chains on your tires.
Always carry emergency equipment.
Some of the items you may want to
carry include tire chains, tow straps
or chains, a flashlight, emergency
flares, sand, a shovel, jumper cables,
a window scraper, gloves, ground
cloth, coveralls, a blanket, etc.
Snow tires
Standard tire Recommended snow tire
Front Rear Front Rear
Tire sizeWheel
sizeTire sizeWheel
sizeTire size
Wheel
sizeTire sizeWheel
size
225/45R18 8.0Jx18 225/45R18 8.0Jx18 225/45R18
8.0Jx18 225/45R18 8.0Jx18
225/40ZR198.0Jx19255/35ZR198.5Jx19 225/40R198.0Jx19 255/35R19 8.5Jx19
225/40R198.0Jx19255/35R198.5Jx19 225/40R198.0Jx19 255/35R19 8.5Jx19
We recommend you use snow tires when road temperature is below 45°F
(7°C). Refer to the below chart, and mount the recommended snow tire for
your vehicle.
If you mount snow tires on your vehicle, make sure to use the same inflation
pressure as the original tires. Mount snow tires on all four wheels to balance
your vehicle's handling in all weather conditions. The traction provided by
snow tires on dry road may not be as high as your vehicle's original equip-
ment tires. Check with the tire dealer for maximum speed recommendations.
Information
Do not install studded tires without first checking local, state and municipal reg-
ulations for possible restrictions against their use.
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Driving your vehicle
5
Information
• Install AutoSock®(fabric snow
chain) on the rear tires. It should be
noted that installing AutoSock
®
(fabric snow chain) on the tires will
provide a greater driving force, but
will not prevent side skids.
• Do not install studded tires without
first checking local, state and
municipal regulations for possible
restrictions against their use.
Chain Installation
When installing AutoSock®(fabric
snow chain), follow the manufactur-
er's instructions and mount them as
tightly as possible. Drive slowly (less
than 20 mph (30 km/h)) with chains
installed. If you hear the chains con-
tacting the body or chassis, stop and
tighten them. If they still make con-
tact, slow down until the noise stops.
Remove the AutoSock
®(fabric snow
chain) as soon as you begin driving
on cleared roads.
When mounting AutoSock
®(fabric
snow chain), park the vehicle on
level ground away from traffic.
Turn on the vehicle Hazard Warning
Flasher and place a triangular emer-
gency warning device behind the
vehicle (if available).
Always place the vehicle in P (Park),
apply the parking brake and turn off
the engine before installing tire
chains.When using AutoSock
®(fabric
snow chain):
• Wrong size chains or improperly
installed chains can damage
your vehicle's brake lines, sus-
pension, body and wheels.
• If you hear noise caused by
chains contacting the body,
retighten the chain to prevent
contact with the vehicle body.
• To prevent body damage,
retighten the chains after driving
0.3~0.6 miles (0.5~1.0 km).
AutoSock
®is a Registered trade-
mark of AutoSock.
NOTICEi