2018 Hyundai Santa Fe check engine

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Introduction
Your new vehicle is designed to obtain
maximum performance with UNLEAD-
ED FUEL, as well as minimize exhaust
emissions and spark plug fouling.
Your new vehicle is designed to use
only unleaded fuel having a pump
octane number ((R+M)/2) of 87
(Research Octane Number 91) or
higher. (Do not use methanol blend-
ed fuels.)
Never add any fuel system cleaning
agents to the fuel tank other than what
has been specified. (Consult an
authorized HYUNDAI dealer for
details.)Gasoline containing alcohol ormethanol
Gasohol, a mixture of gasoline and
ethanol (also known as grain alco-
hol) are being marketed along with or
instead of leaded or unleaded gaso-
line. For example, "E15" is a gasohol
comprised of 15% ethanol and 85%
gasoline.
Do not use gasohol containing more
than 15% ethanol, and do not use
gasoline or gasohol containing any
methanol. Either of these fuels may
cause drivability problems and dam-
age to the fuel system, engine control
system and emission control system.
Discontinue using gasohol of any
kind if drivability problems occur.
"E85" fuel is an alternative fuel com-
prised of 85 percent ethanol and 15
percent gasoline, and is manufac-
tured exclusively for use in Flexible
Fuel Vehicles. "E85" is not compati-
ble with your vehicle. Use of "E85"
may result in poor engine perform-
ance and damage to your vehicle's
engine and fuel system. HYUNDAI
recommends that customers do not
use fuel with an ethanol content
exceeding 15 percent.
✽ ✽ NOTICE
To prevent damage to your vehicle’s
engine and fuel system:
• Never use gasohol which contains
methanol.
• Never use gasohol containing more than 15% ethanol.
• Never use leaded fuel or leaded gasohol.
• Never use "E85" fuel.
Your New Vehicle Limited
Warranty does not cover damage to
the fuel system or any performance
problems caused by the use of
"E85" fuel.
FUEL REQUIREMENTS
WARNING - Refueling
• Do not "top off" after the noz- zle automatically shuts off
when refueling. Attempts to
force more fuel into the tank
can cause fuel overflow onto
you and the ground causing a
risk of fire.
Always check that the fuel cap is installed securely to pre-
vent fuel spillage in the event
of an accident.

45
Features of your vehicle
Door Lock (1)
1. Close all doors, engine hood andliftgate (tailgate).
2. Press the lock button(1).
3. All doors and liftgate (tailgate) will lock. The hazard warning lights
will blink once.
4. If the lock button is pressed once more within 4 seconds, the hazard
warning lights will blink and the
horn will sound once (Horn
Feedback function).
5. Make sure that doors are locked by checking the door lock button
inside or pulling the outside door
handle.
Door Unlock (2)
1. Press the unlock button (2).
2. The driver's door will unlock. Thehazard warning lights will blink two
times.
3. Press the unlock button (2) twice within 4 seconds and all doors and
liftgate (tailgate) will unlock. The
hazard warning lights will blink two
times.
✽ ✽NOTICE
You can activate or deactivate the
Two Turn Unlock and Horn
Feedback function. Refer to "User
settings" in this section.
WARNING - Ignition key
Leaving children unattended in
a vehicle with the ignition key
is dangerous even if the key is
not in the ignition switch is ACC
or ON position. Children copy
adults and they could place the
key in the ignition switch.
The ignition key would enable
children to operate power win-
dows or other controls, or even
make the vehicle move, which
could result in serious bodily
injury or even death. Never
leave the keys in your vehicle
with unsupervised children,
when the engine is running.
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Features of your vehicle
84
Immobilizer system
(if equipped)
Your vehicle is equipped with an
electronic engine immobilizer system
to reduce the risk of unauthorized
vehicle use.
Your immobilizer system is com-
prised of a small transponder in the
ignition key and electronic devices
inside the vehicle.
With the immobilizer system, when-
ever you insert your ignition key into
the ignition switch and turn it to ON,
it checks and determines and verifies
if the ignition key is valid.
If the key is determined to be valid,
the engine will start.
If the key is determined to be invalid,
the engine will not start.
To activate the immobilizer sys-tem:
Turn the ignition key to the OFF posi-
tion. The immobilizer system acti-
vates automatically. Without a valid
ignition key for your vehicle, the
engine will not start.
To deactivate the immobilizersystem:
Insert the ignition key into the key
cylinder and turn it to the ON position.
✽ ✽ NOTICE
When starting the engine, do not use
the key with other immobilizer keys
around. Otherwise the engine may
not start or may stop soon after it
starts. Keep each key separate in
order to avoid a starting malfunction.
✽ ✽NOTICE
If you need additional keys or lose
your keys, contact an authorized
HYUNDAI dealer.
WARNING
In order to prevent theft of your
vehicle, do not leave spare keys
anywhere in your vehicle. Your
Immobilizer password is a cus-
tomer unique password and
should be kept confidential. Do
not leave this number anywhere
in your vehicle.
CAUTION
Do not put metal accessories
near the ignition switch.
Metal accessories may interruptthe transponder signal and mayprevent the engine from beingstarted.

Features of your vehicle
14
4
Smart key precautions
The smart key will not work if any
of the following occur:
- The smart key is close to a radiotransmitter such as a radio sta-
tion or an airport which can inter-
fere with normal operation of the
smart key.
- The smart key is near a mobile two way radio system or a cellular
phone.
- Another vehicle's smart key is being operated close to your
vehicle.
When the smart key does not work correctly, open and close the door
with the mechanical key and con-
tact an authorized HYUNDAI deal-
er.
If the smart key is in close proximi- ty to your cell phone or smart
phone, the signal from the smart
key could be blocked by normal
operation of your cell phone or
smart phone. This is especially
important when the phone is active
such as making a call, receiving
calls, text messaging, and/or send-
ing/receiving emails. Avoid placing the smart key and
your cell phone or smart phone in
the same pants or jacket pocket
and maintain adequate distance
between the two devices.
In cold and wet climates, door lock and door mechanisms may not
work properly due to freezing con-
ditions.
If the door is locked/unlocked mul- tiple times in rapid succession with
either the vehicle key or door lock
switch, the system may stop oper-
ating temporarily in order to protect
the circuit and prevent damage to
system components.
Smart key immobilizer system
Your vehicle is equipped with an
electronic engine immobilizer system
to reduce the risk of unauthorized
vehicle use.
Your immobilizer system is com-
prised of a small transponder in the
smart key and electronic devices
inside the vehicle.
With the immobilizer system, when-
ever you turn the engine start/stop
button to the ON position by pressing
the button while carrying the smart
key, it checks and determines and
verifies if the smart key is valid or
not.
If the key is determined to be valid,
the engine will start.
If the key is determined to be invalid,
the engine will not start.
CAUTION
Keep the smart key away fromwater or any liquid and fire. Ifthe inside of the smart key getsdamp (due to drinks or mois-ture), or is heated, internal cir-cuit may malfunction.

431
Features of your vehicle
Power liftgate (Power tailgate)non-opening conditions
The power liftgate (power tailgate)
will not open or close automatically,
when the vehicle is moving more
than 2 mph (3 km/h).
✽ ✽ NOTICE
• The power liftgate (power tailgate)
can be operated when the engine is
not running. However the power
liftgate (power tailgate) operation
consumes large amounts of vehicle
electric power. To prevent the bat-
tery from being discharged, do not
operate it excessively.
• To prevent the battery from being discharged, do not leave the power
liftgate (power tailgate) in the
open position for a long time.
• Do not modify or repair any part of the power liftgate (power tail-
gate) by yourself. This must be
done by an authorized HYUNDAI
dealer.
• When jacking up the vehicle to change a tire or repair the vehicle,
do not operate the power liftgate
(power tailgate). This could cause
the power liftgate (power tailgate)
to operate improperly.
• In cold and wet climates, the power liftgate (power tailgate) may
not work properly due to freezing
conditions.
WARNING
The chime will sound continu-
ously if you drive over 2 mph (3
km/h) with the liftgate (tailgate)
opened. Stop your vehicle
immediately at a safe place and
check if your liftgate (tailgate) is
opened.
CAUTION
Operating the power liftgate
(power tailgate) more than 5times continuously could causedamages to the operatingmotor. In this case, the systementers into a thermal protectionmode. In thermal protectionmode, the power liftgate (powertailgate) can not operate and thechime will sound for 3 times byany switch inputs. Leave yourpower liftgate (power tailgate)system for rest about 1 minuteand then operate.

Features of your vehicle
44
4
Opening the hood
1. Pull the release lever to unlatch
the hood. The hood should pop
open slightly. 2. Go to the front of the vehicle, raise
the hood slightly, pull the second-
ary latch (1) inside of the hood up
and lift the hood (2).
3. Raise the hood. It will raise com- pletely by itself after it has been
raised about halfway.
HOOD
WARNING
Open the hood after turning off
the engine on a flat surface,
shifting the shift lever to the P
(Park) position, and setting the
parking brake.
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WARNING
When you check the engine
compartment, please make sure
your head is not injured by the
hood safety hook which is
located inside of the hood.
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445
Features of your vehicle
Closing the hood
1. Before closing the hood, check thefollowing:
ment must be correctly installed.
bustible material must be
removed from the engine com-
partment.
2. Lower the hood halfway (lifted approximately 30cm from the
closed position) and push down to
securely lock in place. Then dou-
ble check to be sure the hood is
secure.WARNING
Before closing the hood,ensure that all obstructions
are removed from the hood
opening. Closing the hood
with an obstruction present in
the hood opening may result
in property damage or severe
personal injury.
Do not leave gloves, rags or any other combustible materi-
al in the engine compartment.
Doing so may cause a heat-
induced fire.
Always double check to be sure that the hood is firmly
latched before driving away.
Check there is no hood open
warning light displayed on the
instrument cluster. Driving
with the hood opened may
cause a total loss of visibility,
which might result in an acci-
dent.
Do not move the vehicle with the hood in the raised posi-
tion, as vision is obstructed
and the hood could fall or be
damaged.

Features of your vehicle
48
4
(Continued)
When refueling, always shut
the engine off. Sparks pro-
duced by electrical compo-
nents related to the engine
can ignite fuel vapors causing
a fire. Once refueling is com-
plete, check to make sure the
filler cap and filler door are
securely closed, before start-
ing the engine.
DO NOT use matches or a lighter and DO NOT SMOKE or
leave a lit cigarette in your
vehicle while at a gas station
especially during refueling.
Automotive fuel is highly
flammable and can, when
ignited, result in fire.
If a fire breaks out during refu- eling, leave the vicinity of the
vehicle, and immediately con-
tact the manager of the gas
station and then contact the
local fire department or 911.
Follow any safety instructions
they provide.(Continued)
When using an approvedportable fuel container, be sure
to place the container on the
ground prior to refueling. Static
electricity discharge from the
container can ignite fuel vapors
causing a fire. Once refueling
has begun, contact with the
vehicle should be maintained
until the filling is complete.
Use only approved portable
plastic fuel containers designed
to carry and store gasoline.
Do not use cellular phones while refueling. Electric cur-
rent and/or electronic interfer-
ence from cellular phones can
potentially ignite fuel vapors
causing a fire.
(Continued)CAUTION
Make sure to refuel your vehi-cle according to the "Fuelrequirements" suggested insection 1.
If the fuel filler cap requires replacement, use only a gen-uine HYUNDAI cap or theequivalent specified for yourvehicle. An incorrect fuel fillercap can result in a seriousmalfunction of the fuel systemor emission control system.
Do not spill fuel on the exterior surfaces of the vehicle. Anytype of fuel spilled on paintedsurfaces may damage the paint.
After refueling, make sure the fuel cap is installed securelyto prevent fuel spillage in theevent of an accident.