check engine GENESIS G70 2019 Service Manual

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Driving your vehicle
The ISG system is to reduce the fuel
consumption by automatically shut-
ting down the engine, when the vehi-
cle 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 the hood are closed.
- The brake vacuum pressure is adequate.
- The battery is sufficiently charged.
- The outside temperature is between 14 °F and 95 °F (-10 °C and 35 °C).
- The engine coolant temperature is not too low.
- The system is not in the diagnostic mode.
Information
• The ISG system is not activated,when the prerequisites to activate
the ISG system are unsatisfied. In
this case, the ISG OFF button indi-
cator 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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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 ( ) willblink in yellow on the instrument
cluster.
The light on the ISG OFF button will illuminate.
Information
• When you cannot turn OFF the ISGOFF 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 thebattery 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

5-78
Driving your vehicleHave the vehicle inspected by
an authorized retailer of Genesis
Branded products.
If the front bumper becomes damaged in the area around the
radar sensor, the FCA system
may not operate properly. Have
the vehicle inspected by an
authorized retailer of Genesis
Branded products.
Use only Genesis/Hyundai parts to repair or replace a damaged
sensor or sensor cover. Do not
apply paint to the sensor cover. 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 getsdamaged or replaced.
Warning message and warninglight
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.
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NOTICE
OIK057090L

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Driving your vehicle
5Information
• Even though the steering is assistedby 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 failureindicator (y ellow) 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
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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5
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 engineoil
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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In a rollover crash, an unbelted
person is significantly more
likely to die than a person wear-
ing a seat belt. Make sure all
passengers are wearing their
seat belts.
WARNING

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W
WI
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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 size Wheel
size Tire size Wheel
size Tire size
Wheel
size Tire size Wheel
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
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
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

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5
Winter Precautions
Use high quality ethylene glycolcoolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Change to "winter weight" oil ifnecessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
retailer of Genesis Branded prod-
ucts.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 7. The level of charge in
your battery can be checked by an
authorized retailer of Genesis
Branded products or a service sta-
tion.
Check spark plugs and ignitionsystem
Inspect your spark plugs as
described in chapter 7 and replace
them if necessary. Also check all
ignition wiring and components to be
sure they are not cracked, worn or
damaged in any way.
Use approved window washeranti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized retailer of Genesis
Branded products and most auto
parts outlets. Do not use engine
coolant or other types of anti-freeze
as these may damage the paint fin-
ish.