2018 Hyundai Ioniq Hybrid Owner's Manual

5-110
To prevent engine and/or trans-
mission 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 max-
imum gross vehicle weight and
maximum trailer weight, it can
cause the engine or transmis-
sion 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.
(Continued)(Continued)
• When towing a trailer, your vehi-
cle 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.
• Vehicles equipped with a dual
clutch transmission when tow-
ing a trailer on steep grades,
need to be aware that the clutch
in the transmission could over-
heat.
When the clutch is overheated,
the safe protection mode
engages. If the safe protection
mode engages, the gear posi-
tion indicator on the cluster
blinks with a chime sound.
(Continued)(Continued)
At this time, a warning message
will appear on the LCD display
and driving may not be smooth.
If you ignore this warning, the
driving condition may become
worse.
To return to normal driving con-
ditions, stop the vehicle on a flat
road and apply the foot brake for
a few minutes before driving off.
NOTICE
Driving your vehicle

5-111
Driving your vehicle
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 head-
ed down hill, left if headed up hill).
2. Shift the vehicle 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 park-
ing brake and slowly release the
brakes until the trailer chocks
absorb the load.6. Reapply the brakes and parking
brakes.
7. Move the shift lever 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.
Ready to leave after parking on
a hill
1. With the shift lever in P (Park),
apply your brakes and hold the
brake pedal down while you:
• Start your engine;
• Shift into gear; and
• Release the parking brake.
2. Slowly remove your foot from the
brake pedal.
3. Drive slowly until the trailer is clear
of the chocks.
4. Stop and have someone pick up
and store the chocks.
5
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.
WARNING

5-112
Maintenance when towing a
trailer
Your vehicle will need service more
often when you regularly pull a trail-
er. Important items to pay particular
attention to include engine oil, auto-
matic transmission fluid, axle lubri-
cant and cooling system fluid. Brake
condition is another important item to
frequently check. If you’re trailering,
it’s a good idea to review these items
before you start your trip. Don’t forget
to also maintain your trailer and
hitch. Follow the maintenance sched-
ule that accompanied your trailer and
check it periodically. Preferably, con-
duct the check at the start of each
day’s driving. Most importantly, all
hitch nuts and bolts should be tight.To prevent vehicle damage:
• Due to higher load during trailer
usage, overheating might occur
on hot days or during uphill driv-
ing. If the coolant gauge indi-
cates over-heating, switch off
the air conditioner and stop the
vehicle in a safe area to cool
down the engine.
• Do not switch off the engine
while the coolant gauge indi-
cates over-heating.
(Keep the engine idle to cool
down the engine)
• When towing check automatic
transmission fluid more fre-
quently.
• If your vehicle is not equipped
with an air conditioner, you
should install a condenser fan
to improve engine performance
when towing a trailer.
NOTICE
Driving your vehicle

5-113
Driving your vehicle
5
Two labels on your driver’s door sill
show how much weight your vehicle
was designed to carry: the Tire and
Loading Information Label and the
Certification Label.
Before loading your vehicle, familiar-
ize yourself with the following terms
for determining your vehicle's weight
ratings, from the vehicle's specifica-
tions and the Certification Label:
Base Curb Weight
This is the weight of the vehicle
including a full tank of fuel and all
standard equipment. It does not
include passengers, cargo, or option-
al equipment.
Vehicle Curb Weight
This is the weight of your new vehicle
when you picked it up from your deal-
er plus any aftermarket equipment.
Cargo Weight
This figure includes all weight added
to the Base Curb Weight, including
cargo and optional equipment.GAW (Gross Axle Weight)
This is the total weight placed on
each axle (front and rear) - including
vehicle curb weight and all payload.
GAWR (Gross Axle Weight Rating)
This is the maximum allowable
weight that can be carried by a single
axle (front or rear). These numbers
are shown on the Certification Label.
The total load on each axle must
never exceed its GAWR.
GVW (Gross Vehicle Weight)
This is the Base Curb Weight plus
actual Cargo Weight plus passen-
gers.
GVWR (Gross Vehicle Weight
Rating)
This is the maximum allowable
weight of the fully loaded vehicle
(including all options, equipment,
passengers and cargo). The GVWR
is shown on the Certification Label
located on the driver’s door sill.Overloading
VEHICLE WEIGHT
The Gross Axle Weight Rating
(GAWR) and the Gross Vehicle
Weight Rating (GVWR) for your
vehicle are on the Certification
Label attached to the driver's
(or front passenger

What to do in an emergency
Hazard warning flasher ........................................6-2
In case of an emergency while driving ..............6-2
If the engine stalls while driving ...................................6-2
If the engine stalls at a crossroad or crossing .........6-2
If you have a flat tire while driving..............................6-3
If the engine will not start ...................................6-4
If the 12 volt battery is discharged
(hybrid vehicle) ......................................................6-5
Before jump starting ........................................................6-5
Jump starting ......................................................................6-6
If the 12 volt battery is discharged
(plug-in hybrid vehicle) ........................................6-9
Jump strating .....................................................................6-9
If the engine overheats ......................................6-12
Tire Pressure Monitoring System (TPMS).......6-14
Check tire pressure ........................................................6-14
Tire pressure monitoring system ................................6-15
Low tire pressure telltale ..............................................6-15
Low tire pressure position and
tire pressure telltale .......................................................6-15
TPMS (Tire Pressure Monitoring System)
malfunction indicator .....................................................6-17
Changing a tire with TPMS...........................................6-18
If you have a flat tire (with spare tire)............6-20
Jack and tools ..................................................................6-20
Changing tires ..................................................................6-21
Jack label ...........................................................................6-26
EC Declaration of conformity for Jack......................6-27
If you have a flat tire (with tire mobility kit)...6-28
Type A ................................................................................6-28
Type B ................................................................................6-35
Towing ...................................................................6-43
Towing service .................................................................6-43
Removable towing hook ................................................6-44
Emergency towing ..........................................................6-45
Emergency commodity ........................................6-47
Fire extinguisher .............................................................6-47
First aid kit ......................................................................6-47
Triangle reflector ............................................................6-47
Tire pressure gauge .......................................................6-47
6

6-2
The hazard warning flasher serves as
a warning to other drivers to exercise
extreme caution when approaching,
overtaking, or passing your vehicle.
It should be used whenever emer-
gency repairs are being made or
when the vehicle is stopped near the
edge of a roadway.To turn the hazard warning flasher
on or off, press the hazard warning
flasher button with the ignition switch
in any position. The button is located
in the center fascia panel. All turn
signal lights will flash simultaneously.
• The hazard warning flasher oper-
ates whether your vehicle is run-
ning or not.
• The turn signals do not work when
the hazard flasher is on.
If the engine stalls while driving
• Reduce your speed gradually,
keeping a straight line. Move cau-
tiously off the road to a safe place.
• Turn on your hazard warning flasher.
• Try to start the engine again. If your
vehicle will not start, we recom-
mend that you contact an author-
ized HYUNDAI dealer.
If the engine stalls at a cross-
road or crossing
If the engine stalls at a crossroads or
crossing, if safe to do so, move the
shift lever to the N (Neutral) position
and then push the vehicle to a safe
location.
HAZARD WARNING FLASHER
What to do in an emergency
IN CASE OF AN EMERGENCY
WHILE DRIVING
OAE066001

6-3
What to do in an emergency
If you have a flat tire while
driving
If a tire goes flat while you are driv-
ing:
• Take your foot off the accelerator
pedal and let the vehicle slow
down while driving straight ahead.
Do not apply the brakes immedi-
ately or attempt to pull off the road
as this may cause loss of vehicle
control resulting in an accident.
When the vehicle has slowed to
such a speed that it is safe to do
so, brake carefully and pull off the
road. Drive off the road as far as
possible and park on firm, level
ground. If you are on a divided
highway, do not park in the median
area between the two traffic lanes.
• When the vehicle is stopped, press
the hazard warning flasher button,
move the shift lever into P (Park),
apply the parking brake, and place
the ignition switch in the LOCK/
OFF position.• Have all passengers get out of the
vehicle. Be sure they all get out on
the side of the vehicle that is away
from traffic.
• When changing a flat tire, follow
the instructions provided later in
this chapter.
6

6-4
IF THE ENGINE WILL NOT START
What to do in an emergency
Hybrid vehicle
• Be sure the shift lever is in P
(Park). The vehicle starts only
when the shift lever is in P (Park).
• This vehicle does not have a regu-
lar 12V battery that needs periodic
replacement. It is lithium ion poly-
mer type integrated into the HEV
high voltage battery. The vehicle
has a 12V battery protection sys-
tem that cuts 12V battery from
vehicle draw to prevent full dis-
charge. If vehicle will not start, first
try pressing the 12V Battery Reset
switch (left side of the steering
wheel near the fuel door open
switch) to reconnect the 12V bat-
tery, but you must start vehicle
within 15 seconds of pressing the
12V Battery Reset switch. After
starting vehicle, operate the vehi-
cle safely outdoors in ready mode
stopped and/or drive it for 30 min-
utes total to charge the 12V battery
fully.• Check the fuel level and add fuel if
necessary.
If the vehicle still does not start, we
recommend that you call an author-
ized HYUNDAI dealer for assistance.
Plug-in hybrid vehicle
• Be sure the shift lever is in P
(Park). The vehicle starts only
when the shift lever is in P (Park).
• Check the battery connections to
be sure they are clean and tight.
• Turn on the interior light. If the light
dims or goes out when you operate
the starter, the battery is drained.
Do not push or pull the vehicle to
start it. This could cause damage to
your vehicle.See instructions for
"Jump Starting" provided in this
chapter.
• Check the fuel level and add fuel if
necessary.
If the vehicle still does not start, we
recommend that you call an author-
ized HYUNDAI dealer for assistance.Push or pull starting the vehicle
may cause the catalytic convert-
er to overload which can lead to
damage to the emission control
system.
CAUTION
Push or pull starting the vehicle
may cause the catalytic con-
verter to overload which can
lead to damage to the emission
control system.
CAUTION