2022 HYUNDAI SANTA FE HYBRID coolant temperature

Foreword / Hybrid System Overview
1-46
Switching to Hybrid mode to allow
heating or air conditioning (Plug-in
hybrid vehicle)
OAEPHQ049842L
This message is displayed when the
vehicle automatically switches to
HEV mode to allow heating or air
conditioning. It is when the heating and
cooling system is on and the coolant
temperature is below 70 °C and ambient
temperature is below -15 °C.
If the coolant temperature gets higher
than 80°C or ambient temperature is
higher than -10°C or the driver turns
off the heating or cooling system, the
vehicle returns to its default (EV) mode. Maintaining Hybrid mode to allow
heating or air conditioning (Plug-in
hybrid vehicle)OAEPHQ049841L
This message is displayed when the
vehicle maintains the HEV mode to allow
heating or air conditioning. The mode
does not change when the driver presses
the [HEV] button to switch from the HEV
mode to EV mode while the heating and
cooling system is on and the coolant
temperature is below (70°C) and outdoor
temperature is below -15°C.
Low/High System Temp. Maintaining
Hybrid mode (Plug-in hybrid vehicle)
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This message is displayed when the
temperature of the high-voltage
(hybrid) battery is too low or too high.
This warning message is to protect the
battery and the hybrid system.

Instrument Cluster
4-28
Wiper/Lights display
„Wiper„Lights
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[ This indicator displays which wiper
speed is selected using the wiper
control.

[ This indicator displays which exterior
light is selected using the lighting
control.
You can activate or deactivate Wiper/
Lights display function from the User
Settings menu in the cluster LCD display. - 6HWXS
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Wiper/Lights display
Low washer fluid (if equipped)
This message is displayed if the washer
fluid level in the reservoir is nearly empty.
Have the washer fluid reservoir refilled.
Low fuel
This message is displayed if the fuel tank
is almost out of fuel.
When this message is displayed, the low
fuel level warning light in the cluster will come on.
It is recommended to look for the nearest
fueling station and refuel as soon as possible.
NOTICE
Do not drive the vehicle with low fuel.
Hybrid battery damage may occur
when the fuel tank is completely empty.
Engine has overheated
This message is displayed when the
engine coolant temperature is above
120°C (248°F). This means that the
engine is overheated and may be damaged.
If your vehicle is overheated, refer to
“Overheating” section in chapter 8.
Check exhaust system (if equipped)
This message is displayed if there is
a problem with the GPF system. At
this time, the GPF warning light will
also blink. If this occurs, you have the
GPF system checked by an authorized
HYUNDAI dealer.
GPF : Gasoline Particulate Filter
Check headlight (if equipped)
This message is displayed if the
headlights are not operating properly. A
headlight bulb may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating. Check turn signal (if equipped)
This message is displayed if the turn
signal lamps are not operating properly.
A lamp may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
Check brake light (if equipped)
This message is displayed if the stop
lamps are not operating properly. A lamp
may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
NOTICE
Do not drive the vehicle with low fuel.
Hybrid battery damage may occur
when the fuel tank is completely empty.

04
4-33
Fuel door unlocked (Plug-in hybrid
vehicle)
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The message is displayed when the fuel
filler door unlocked. Also means “Ready
to refuel”. Please press the rear center
edge of fuel filler door to open.
Shift to P to charge (Plug-in hybrid
vehicle)
OAEPHQ049833L
This message is displayed when the
charging connector is plugged with the
shift lever in R (Reverse), N (Neutral) or
D (Drive). Move the shift lever to P (Park)
and re-start the charging process. Switching to Hybrid mode to allow
heating or air conditioning (Plug-in
hybrid vehicle)
OAEPHQ049842L
This message is displayed when the
vehicle automatically switches to
HEV mode to allow heating or air
conditioning. It is when the coolant
temperature is low (below -14°C) and the
driver turns on the heating or cooling
system.
If the coolant temperature gets higher
than -14°C or the driver turns off the
heating or cooling system the vehicle
returns to its default (EV) mode.

Instrument Cluster
4-34
Maintaining Hybrid mode to allow
heating or air conditioning (Plug-in
hybrid vehicle)
OAEPHQ049841L
This message is displayed when the
vehicle maintains the HEV mode to allow
heating or air conditioning. The mode
does not change when the driver presses
the [HEV] button to switch from the HEV
mode to EV mode while the heating and
cooling system is on and the coolant
temperature is below -14°C. Low/High System Temp. Maintaining
Hybrid mode (Plug-in hybrid vehicle)OAEPHQ049834LOAEPHQ049835L
This message is displayed when the
temperature of the high-voltage
(hybrid) battery is too low or too high.
This warning message is to protect the
battery and the hybrid system.
Low/High System Temp. Switching
to Hybrid mode (Plug-in hybrid
vehicle)
OAEPHQ049836LOAEPHQ049837L
This message is displayed when the
temperature of the high-voltage (hybrid)
battery is too low or high. This warning
message is to protect the battery and the
hybrid system.

Instrument Cluster
4-40
Engine coolant temperature
OTMH040007
This engine coolant temperature gauge
display shows the temperature of the
engine coolant when the engine is running.
NOTICE
When the gauge indicator gets out of
the normal range, toward the "H(Hot)"
position, it indicates overheating of the
engine. It may damage the engine.
Do not continue driving with the
overheated engine.
For more details, refer to "If the Engine
Overheats" section in the chapter 8.
User settings mode
OTM040060L
In this mode, you can change the
settings of the instrument cluster, doors,
lamps, etc.
1. Driver Assistance
2. Eco vehicle
3. Head-up display 4. Cluster5. Lights6. Door
7. Convenience8. Units
The information provided may differ
depending on which functions are
applicable to your vehicle.
Shift to P to edit settings
This warning message appears if you try
to adjust the User Settings while driving.
For your safety, change the User Settings
after parking the vehicle, applying the
parking brake and pressing the P (Park)
button.
Quick guide help
This mode provides quick guides for the
systems in the User Settings mode.
Select an item, press and hold the OK
button.
For more details, about each system,
refer to this Owner’s Manual.
Information
When the infotainment system is applied,
only the User’s Setting mode on the infotainment system is supported but the
User’s Setting mode on the instrument
cluster is not supported.

06
6-45
Drive Mode
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Drive mode may be selected according
to the driver's preference or road condition.
The mode changes whenever the DRIVE/
TERRAIN knob is rotated.
ECO mode
ECO mode helps improve fuel
efficiency for eco-friendly driving.
Fuel efficiency varies according
to the driver's driving habit and
road condition.

[ When ECO mode is selected, the
ECO indicator will illuminate on the
instrument cluster.

[ When ECO mode is activated:
- The acceleration response may be slightly reduced if the accelerator
pedal is depressed moderately.
- The air conditioner performance may be limited.
- The shift pattern of the automatic transmission may change.
- Engine noise may be louder at some automatic transmission shifts as
down-shift requires pressing down
more on the accelerator.
The above situations are normal
conditions when ECO mode is activated
to help improve fuel efficiency.
Limitations of ECO mode
If the following conditions occur while
ECO mode is operating, the system
operation is limited even though there is
no change in the ECO indicator.
[ When coolant temperature is low:
The system will be limited until engine
performance becomes normal.

[ When driving up a hill:
The system will be limited to gain
power when driving uphill because
engine torque is restricted.

[ When driving the vehicle in manual
shift mode using the paddle shifter.
The system will be limited according to
the shift location.
SPORT mode
SPORT mode provides sporty but firm riding.
In SPORT mode, the fuel
efficiency may decrease.

[ When SPORT mode is selected, the
SPORT indicator will illuminate on the
instrument cluster.

[ Whenever the engine is restarted, the
drive mode will revert back to ECO
mode. If SPORT mode is desired, re-
select SPORT mode.

[ When SPORT mode is activated:
- The engine rpm will tend to remain raised over a certain length of time
even after releasing the accelerator
- Upshifts are delayed when accelerating
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06
6-53
Winter Precautions
Use high quality ethylene glycol coolant
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 cooling
system, lubricates the water pump and
prevents freezing. Be sure to replace or
replenish your coolant in accordance
with the maintenance schedule in
chapter 9. Before winter, have your
coolant tested to assure that its freezing
point is sufficient for the temperatures
anticipated during the winter.
Check battery and cables
Winter temperatures affect battery
performance. Inspect the battery and
cables, as specified in chapter 9. The
battery charging level can be checked
by an authorized HYUNDAI dealer or in a
service station.
Change to “winter weight” oil if necessary
In some regions during winter, it is
recommended to use the “winter
weight” oil with lower viscosity In
addition, replace the engine oil and filter
if it is close to the next maintenance
interval. Fresh engine oil ensures
optimum engine operation during the
winter months. For further information,
refer to chapter 2. When you are not sure
about a type of winter weight oil, you
consult an authorized HYUNDAI dealer. Check spark plugs and ignition system Inspect the spark plugs, as specified in
chapter 8.
If necessary, replace them.
Also check all ignition wirings and
components for any cracks, wear-out, and damage.
To prevent locks from freezing
To prevent the locks from being frozen,
spray approved de-icing fluid or glycerin
into key holes. When a lock opening is
already covered with ice, spray approved
de-icing fluid over the ice to remove it.
When an internal part of a lock freezes,
try to thaw it with a heated key. Carefully
use the heated key to avoid an injury.
Use approved window washer anti-
freeze solution in system
To prevent the window washer from
being frozen, add authorized window
washer anti-freeze solution, as specified
on the window washer container.
Window washer anti-freeze solution is
available from an authorized HYUNDAI
dealer, and most vehicle accessory
outlets. Do not use engine coolant or
other types of anti-freeze solution, to
prevent any damage to the vehicle paint.

Driving Your Vehicle
6-62
NOTICE
To prevent engine and/or transmission
overheating:
[When towing a trailer on steep
grades (in excess of 6%) pay close
attention to the engine coolant
temperature gauge to ensure the
engine does not overheat. If the
needle of the coolant temperature
gauge moves towards “H” (HOT),
pull over and stop as soon as it is
safe to do so, and allow the engine
to idle until it cools down. You may
proceed once the engine has cooled
sufficiently.

[ If you tow a trailer with the maximum
gross vehicle weight and maximum
trailer weight, it can cause the
engine or transmission to overheat. When driving in such conditions,
allow the engine to idle until it cools
down. You may proceed once the
engine or transmission has cooled
sufficiently.

[ When towing a trailer, your vehicle
speed may be much slower than the
general flow of traffic, especially
when climbing an uphill grade. Use
the right hand lane when towing a
trailer on an uphill grade. Choose
your vehicle speed according to the
maximum posted speed limit for
vehicles with trailers, the steepness
of the grade, and your trailer weight. Parking on hills
Generally, if you have a trailer attached
to your vehicle, you should not park your
vehicle on a hill.
However, if you ever have to park your
trailer on a hill, here’s how to do it:
1. Pull the vehicle into the parking space.
Turn the steering wheel in the
direction of the curb (right if headed
down hill, left if headed up hill).
2. Shift the gear to P (Park).
3. Set the parking brake and shut off the vehicle.
4. Place wheel chocks under the trailer wheels on the down hill side of the wheels.
5. Start the vehicle, hold the brakes, shift to neutral, release the parking brake
and slowly release the brakes until the
trailer chocks absorb the load.
6. Reapply the brakes and parking brakes.
7. Shift the gear to P (Park) when the vehicle is parked on a uphill grade and
in R (Reverse) on a downhill.
8. Shut off the vehicle and release the vehicle brakes but leave the parking
brake set.
WARNING
To prevent serious or fatal injury:
[ Do not get out of the vehicle without
the parking brake firmly set. If you
have left the engine running, the
vehicle can move suddenly. You and
others could be seriously or fatally
injured.

[ Do not apply the accelerator pedal to
hold the vehicle on an uphill.