2018 Hyundai Ioniq Hybrid Maintenance

3-52
Odometer
The odometer indicates the total dis-
tance that the vehicle has been driv-
en and should be used to determine
when periodic maintenance should
be performed.
Distance to empty
• The distance to empty is the esti-
mated distance the vehicle can be
driven with the remaining fuel.
• If the estimated distance is below
1 km (1 mi.), the trip computer will
display "----" as distance to empty.
• The distance to empty for cluster
type B is displayed differently
according to the mode selected,
ECO or SPORT. If the shift lever is
in S (Sport), SPORT mode is
selected and if the shift lever is in D
(Drive), ECO mode is selected.
For more information, refer to
“Dual Clutch Transmission” in
chapter 5.• The Distance to Empty for cluster
type A is mentioned in “Trip
Computer” in this chapter.
Information
• If the vehicle is not on level ground
or the battery power has been inter-
rupted, the distance to empty func-
tion may not operate correctly.
• The distance to empty may differ
from the actual driving distance as
it is an estimate of the available
driving distance.
• The trip computer may not register
additional fuel if less than 6 liters
(1.5 gallon) of fuel are added to the
vehicle.
• The fuel economy and distance to
empty may vary significantly based
on driving conditions, driving habits,
and condition of the vehicle.
i
Convenient features of your vehicle
OAE046138/OAE046112
■Type B ■Type A
OAEE046141/OAE046126
■Type B
• ECO mode selected
• SPORT mode selected

3-138
Convenient features of your vehicle
System maintenance
Climate control air filter
The climate control air filter installed
behind the glove box filters the dust
or other pollutants that come into the
vehicle from the outside through the
heating and air conditioning system.
If dust or other pollutants accumulate
in the filter over a period of time, the
air flow from the air vents may
decrease, resulting in moisture accu-
mulation on the inside of the wind-
shield even when the outside (fresh)
air position is selected. If this hap-
pens, we recommend that the cli-
mate control air filter be replaced by
an authorized HYUNDAI dealer.
Information
• Replace the filter according to the
Maintenance Schedule.
If the car is being driven in severe
conditions such as dusty, rough
roads, more frequent climate con-
trol air filter inspections and
changes are required.
• When the air flow rate suddenly
decreases, we recommend that the
system be checked by an authorized
HYUNDAI dealer.
Checking the amount of air con-
ditioner refrigerant and com-
pressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorized
HYUNDAI dealer.
i
1LDA5047
Outside air
Recirculated
air
Climate control
air filterBlower
Evaporator
coreHeater core
Vehicles equipped with R-134a
Because the refriger-
ant is at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and certified
technicians. It is important that
the correct type and amount of
oil and refrigerant is used.
Otherwise, it may cause damage
to the vehicle and personal injury.
WARNING

5
Smart Cruise Control system..............................5-79
Smart Cruise Control speed ..........................................5-81
Smart Cruise Control Vehicle-to-Vehicle
Distance .............................................................................5-85
Sensor to detect distance to the vehicle ahead .....5-88
To adjust the sensitivity of Smart Cruise Control ..5-90
To convert to Cruise Control mode ............................5-90
Limitations of the system .............................................5-91
Special driving conditions ...................................5-96
Hazardous driving conditions.......................................5-96
Rocking the vehicle ........................................................5-96
Smooth cornering ...........................................................5-97
Driving at night ................................................................5-97
Driving in the rain ...........................................................5-97
Driving in flooded areas ................................................5-98
Highway driving ...............................................................5-98
Winter driving .......................................................5-99
Snow or icy conditions ..................................................5-99
Winter Precautions .......................................................5-101
Trailer towing (for europe) ..............................5-104
If you decide to pull a trailer?...................................5-105
Trailer towing equipment ............................................5-107
Driving with a trailer ....................................................5-108
Maintenance when towing a Trailer ........................5-112
Vehicle weight ....................................................5-113
Overloading ....................................................................5-113

5-101
Driving your vehicle
5
Chain Installation
When installing tire chains, follow the
manufacturer's instructions and
mount them as tightly possible. Drive
slowly (less than 30 km/h (20 mph))
with chains installed. If you hear the
chains contacting the body or chas-
sis, stop and tighten them. If they still
make contact, slow down until the
noise stops. Remove the tire chains
as soon as you begin driving on
cleared roads.
When mounting snow chains, park
the vehicle on level ground away
from traffic. Turn on the vehicle
Hazard Warning Flasher and place a
triangular emergency 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 snow
chains.When using tire chains:
• Wrong size chains or improperly
installed chains can damage
your vehicle's brake lines, sus-
pension, body and wheels.
• Use SAE "S" class or wire
chains.
• 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
0.5~1.0 km (0.3~0.6 miles).
• Do not use tire chains on vehi-
cles equipped with aluminum
wheels. If unavoidable, use a
wire type chain.
• Use wire chains less than 12 mm
(0.47 in) thick to prevent damage
to the chain's connection.
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 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.
NOTICE

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

7
Maintenance
7
Maintenance
Engine compartment .............................................7-3
Maintenance services ...........................................7-5
Owner's responsibility ......................................................7-5
Owner maintenance precautions ..................................7-5
Owner maintenance ...............................................7-6
How to Disconnect the (-) Cable
for Regular Maintenance ................................................7-6
Owner maintenance schedule ........................................7-7
Scheduled maintenance services.........................7-8
Normal maintenance schedule
- For Europe (except Russia) ........................................7-9
Maintenance under severe usage conditions
- For Europe (except Russia) ......................................7-13
Normal maintenance schedule
- Except Europe (but include Russia) ........................7-15
Maintenance under severe usage conditions
- Except Europe (but include Russia) ........................7-19
Explanation of scheduled maintenance items .7-21
Engine oil ..............................................................7-23
Checking the engine oil level .......................................7-23
Checking the engine oil and filter ..............................7-24
Engine coolant/inverter coolant .......................7-25
Checking the coolant level ...........................................7-25
Changing coolant.............................................................7-28
Hybrid starter & generator (HSG) belt.............7-29
Checking the hybrid starter &
generator (HSG) belt ......................................................7-29
Brake fluid ............................................................7-29
Checking the brake fluid level .....................................7-29
Washer fluid .........................................................7-30
Checking the washer fluid level ..................................7-30
Parking brake .......................................................7-31
Checking the parking brake .........................................7-31
Air cleaner ............................................................7-31
Filter replacement ...........................................................7-31
Climate control air filter .....................................7-33
Filter inspection ...............................................................7-33
Wiper blades .........................................................7-35
Blade inspection ..............................................................7-35
Blade replacement ..........................................................7-35
Battery (12 volt, Plug-in hybrid vehicle) .........7-38
For best battery service................................................7-39
Battery capacity label ....................................................7-40
Battery recharging .........................................................7-40
Reset features .................................................................7-41
7

Tires and wheels ..................................................7-42
Tire care ............................................................................7-42
Recommended cold tire inflation pressures.............7-43
Check tire inflation pressure........................................7-44
Tire rotation .....................................................................7-45
Wheel alignment and tire balance ..............................7-46
Tire replacement .............................................................7-46
Wheel replacement .........................................................7-47
Tire traction ......................................................................7-47
Tire maintenance ............................................................7-48
Tire sidewall labeling ......................................................7-48
Low aspect ratio tires ....................................................7-52
Fuses ......................................................................7-53
Instrument panel fuse replacement ...........................7-54
Engine compartment panel fuse replacement.........7-55
Fuse/relay panel description .......................................7-57
Light bulbs.............................................................7-67
Headlamp, position lamp, turn signal lamp bulb
replacement ......................................................................7-68
Headlamp aiming (For Europe) ....................................7-72
Daytime running lamp ....................................................7-76
Side repeater lamp replacement .................................7-76
Rear combination lamp bulb replacement ................7-77
Rear fog lamp ..................................................................7-82
High mounted stop lamp ...............................................7-82
License plate light bulb replacement .........................7-82
Interior light bulb replacement ....................................7-82
Appearance care ..................................................7-84
Exterior care ....................................................................7-84
Interior care......................................................................7-89
Emission control system .....................................7-91
Crankcase emission control system ...........................7-92
Evaporative emission control system.........................7-92
Exhaust emission control system ...............................7-92
Procedure for entering forced engine
activation mode ....................................................7-95

7-3
7
Maintenance
ENGINE COMPARTMENT
1. Engine oil filler cap
2. Engine oil dipstick
3. Engine coolant cap
4. Engine coolant reservoir
5. Inverter coolant reservoir
6. Brake fluid reservoir
7. Air cleaner
8. Windshield washer fluid reservoir
9. Fuse box
OAE076001
The actual engine compartment in the vehicle may differ from the illustration.
■Hybrid vehicle