Kinderkraft ONETO3 User manual

MODEL: I-GUARD ECE.R129.03 ver. 1.2
MODEL: ONETO3 i-Size ECE R129.03 v.1.1
ONETO3 i-Size
USER GUIDE

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ATTENTION! Product graphics are for reference only.
A.1
Please read this user manual carefully before using your child’s car seat for the first time. It is your
responsibility to ensure your child's safety and failure to read this manual may affect it.
1.0 Car seat components (Fig. A.1)
1. Harness shoulder strap openings
2. Shoulder safety harness guide
3. Baby insert
4. Harness buckle
5. Buckle pad
6. Harness adjustment button
7. Harness adjustment strap
8. Headrest
9. Shoulder pads
10. ISOFIX identifiers
11. ISOFIX release button
12. Seat tilt lever handle
13. Headrest adjustment strap
14. Waist safety harness guide
15. Base
16. ISOFIX pads
17. Top-Tether strap
18. Storage compartment for storing instructions
19. ISOFIX connector arms

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2.0 Usage
The car seat has been designed, tested and approved for use in accordance with the requirements
of UN/ECE Regulation No. 129 concerning the approval of child restraint systems (UN/ECE
R129/03).
The car seat is designed to be installed forward facing, for children between 76 cm - 150 cm body
height (up to approximately 12 years of age).
In the range of 76 cm - 105 cm (≤ 18 kg) the car seat must be installed in the vehicle using the
ISOFIX system and the Top-Tether strap. The child shall be secured with the internal harness
straps of the car seat.
For children between 100 cm - 150 cm body height, the inner harness straps of the car seat should
be stowed and the child should be secured with the 3-point seat belts for adults with ISOFIX low
mountings (see section 5.2) or with the 3-point seat belts for adults (see section 5.4).
The car seat can be installed in the car in the places indicated by the manufacturer in the vehicle
manual. Reading the vehicle manufacturer's operating instructions is required.

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Hight of the child
Car seat setting
Car seat mounting
76 –105 cm
Forward facing
ISOFIX + Top-Tether + inner harness straps
100 –150 cm
Forward facing
ISOFIX + three-point safety harness
Three-point safety harness

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A.2
3.0 Safety instructions
WARNINGS
Please take a few minutes to read this instruction manual in order to ensure the adequate safety
of your child. Many injuries that are easy to avoid are caused by reckless and improper use of the
car seat.
ATTENTION! It is good to have the manual always at hand. We advise you to keep it in a
designated place in the storage compartment on the back of the car seat backrest (18).
• The car seat is designed to be mounted only on forward-facing car seats. The seat must not be
mounted on car seats mounted backwards or sideways. (Fig. A.2)
• A car seat MUST NOT be placed on seats with an active front air-bag as this could be dangerous.
This does not apply to the side air-bags.
• If the car seat is installed in the front seat, the front air-bag must be deactivated. It is
recommended to install the car seat only on the back seats of the car. Please refer to your vehicle
operating manual for information on the suitability of the seat for use with a car seat.
• Before each journey, make sure that the safety harness is correctly adjusted and fits tightly
around the child's body. The safety harness must not be twisted under any circumstances!

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A.3
• The car seat is not suitable for installation in vehicles with two-point seat belts or waist belts.
The use of this type of seat belts could result in serious or fatal injuries to the child in the event
of an accident (Fig. A.3).
• REMEMBER, THE TIGHTER THE SAFETY HARNESS FITS OVER YOUR CHILD'S BODY, THE HIGHER
THE SAFETY LEVEL. FOR THIS REASON, CHILD SHOULD NOT WEAR THICK CLOTHES UNDER THE
SAFETY HARNESS.
• The waist belts of the safety harness must run as low as possible across your child's pelvis to
ensure optimum effect in the event of an accident.
• Only an optimally adjusted headrest can provide your child with maximum protection and
comfort, while ensuring that the safety harness is properly adjusted.
• The Kinderkraft ONETO3 i-Size car seat backrest should be pushed against the backrest of the
car seat to provide the best possible protection for your child.
• The car seat should be replaced when it has been subjected to violent stresses during a traffic
accident.
• The car seat may not be modified in any way without the approval of the relevant approval
authority. Failure to install the car seat in accordance with the manufacturer's instructions may
pose a threat to life and health.
• Protect the car seat from direct sunlight, otherwise your child may be burnt by heated parts.
Protect your child and car seat from sunlight.
• Never leave your child unattended in the car seat.
• Make sure that luggage and other objects are adequately secured, in particular on the shelf
under the rear window, as they can cause injuries in the event of a collision.
• The car seat cannot be used without the cover.
• The baby insert is designed to protect the child and must be used until the child is 87 cm tall.

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• Do not use replacement covers, other than those recommended by the manufacturer, as they are
an integral part of the safety system of the car seat.
• It is recommended to keep the instruction manual of the car seat throughout its lifetime.
• Do not use any other attachment points than those described in the instruction manual and
marked on the car seat.
• All hard parts and plastic parts of a car seat must be positioned and installed in such a way that,
under normal operating conditions of the vehicle, they could not be trapped by the sliding seat or
vehicle door.
• Regularly check the technical condition of the car seat, pay special attention to the fixing points,
seams and adjusting elements. It is important to ensure that all mechanical elements are fully
operational. Never grease or oil parts of the car seat.
• Do not use the car seat if its parts are damaged or loose.
• In the event of an emergency, it is important to quickly unfasten the seat belts. This means that
the release button of the five-point safety harness is not fully secured, make sure your child does
not play with the buckle of the five-point safety harness.
• Set a good example for your child and wear your seat belt at all times. An adult who is not fastened
with seat belts can also pose a threat to a child.
• Make sure that the car seat is correctly fastened before each journey in the car.
• The car seat must be secured at all times, even when not in use. The car seat that is not fastened
can injure the passengers even during emergency braking.
• On some vehicle seats made of delicate materials, the use of car seats may leave marks and/or
discolouration. To prevent this from happening, you can place a blanket, towel or similar product
under the car seat.

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B.1
B.2
4.0 Securing the child
4.1 Insert
The baby insert (3) is its integral part and plays an important role in the functioning of the cat
seat. The insert improves comfort and gives extra support for very young children. The extra
insert should be used until the child reaches 87 cm (Fig. B.1).
4.2. Safety harness adjustment
Loosen the safety harness by pressing the button (6) while pulling the safety harness straps to
tighten (B.2).

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B.3 B.4
B.5
4.3 Height of the headrest
A correctly positioned headrest ensures optimal placement of the shoulder part of the vehicle
seat belt and provides protection and comfort for your child. The headrest should fit snugly
around your child's head, with the lower part of the headrest at the same height as your child's
shoulders (Fig. B.3).
• Grasp the headrest adjustment strap (13) located at the top of the headrest (8) and pull it gently
upwards (Fig. B.4). The headrest will be unlocked.
• You can now adjust the headrest (1) to one of the 12 selected positions to the desired height
(Fig. B.5). When the height is adjusted, let go of the adjusting strap (13) and the headrest will be
locked.
IMPORTANT! Make sure the seat headrest is locked in place.
Place your child in the car seat and check the height of the headrest. Attention! If necessary,
repeat the steps to adjust the headrest height until you reach the optimal height.
ATTENTION! In the case of mounting on car belts: the shoulder belt should pass between the
child's shoulder and neck. The headrest should fit the child's head well.


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B.6
B.7
4.4 Mechanism for adjusting the inclination of the
backrest
The inclination angle of the car seat can be adjusted with the lever (12). Pull the lever and then
adjust the inclination angle of the seat/backrest (Fig. B.6). Release the lever in the required
position. Move the seat slightly until you hear a clear "click" sound - the seat is secured in one of
the 5 possible positions (Fig. B.7). ATTENTION! It is possible to adjust the inclination of the
backrest for children with a height of at least 76-105 cm.


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B.8
B.9
4.5 Securing the child with the inner harness straps
• Loosen the harness straps fully by pressing the button (6) and pulling the harness straps (Fig.
B.8).
• Undo the buckle (4) and place the harness straps on the sides of the car seat (Fig.B.8). Place the
child in the seat (Fig. B.8).
• Adjust the headrest to the child's height (see section 4.3).
• Bring the two buckle latches together to engage them and insert them into the buckle (4) until
you hear a "click" (Fig. B.9).

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B.10
B.11
4.6 Tightening the harness
• Pull the shoulder straps to eliminate slack in the waist section, so the harness will lie flat.
• Tighten the harness with the adjustment strap (7) until the harness lies flat on and close to the
child's body (Fig. B.10).
NOTE The waist harness straps must be positioned as low as possible on the child's hips. Make
sure that the harness straps are not twisted (Fig. B.11).
5.0 Installation in the car
In the event of sudden braking or an accident, people not wearing seat belts may injure other
passengers.
Always check whether:
• The seat backrests in the vehicle are locked (i.e. the folding backrest of the rear seat is latched).
• All heavy and sharp-edged items are secured (e.g. on the rear shelf).
• All passengers have fastened their seat belts.
• The car seat is always secured even if the child is not transported in it.
Vehicle protection
The seat covers in some vehicles may be made of delicate materials and the car seat may leave
marks on them. They can be avoided by placing a blanket or towel under the car seat.

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C.1 C.2
C.3
5.1 Installing a forward-facing car seat for children
between 76 and 105 cm tall using the ISOFIX system and
the Top-Tether).
IMPORTANT The vehicle manual provides the location of the ISOFIX installation points and top
fastening strap, as well as other necessary information for installing the car seat in your vehicle.
The user MUST read the vehicle operation manual.
5.1.1 ISOFIX installation
• Attach the ISOFIX pads (16) on the seat connectors.
• Press both sides of the ISOFIX release button (11) and extend the ISOFIX connector arms (19)
to their maximum length (Fig. C.1).
• Grasp the child seat with both hands and insert both latches into the places of installation on
the vehicle seat (Fig. C.1).
• Place the Top-Tether fastening strap (17) over the headrest so that you do not block your access
to it when installing the ISOFIX connectors.
• When you hear a "click" from each of the ISOFIX latches, push the seat of the car seat against
the backrest, exerting firm, even pressure on both sides (Fig. C.1).
• ATTENTION! The locking latches are properly attached only when both button markings are
completely green (Fig. C.2).
• Grasp the car seat and check if it is fastened securely with no slack. If it does move and the
ISOFIX latches come out, repeat the previous steps (Fig. C.3).

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C.4
C.5 C.6
5.1.2 Mounting the Top-Tether
• Pull out the Top-Tether strap (17) and press the buckle release button to loosen it (Fig. C.4).
The length of the strap must allow the hook to be hooked to the anchorage point at the rear of
the vehicle seat or in the trunk.
• Attach the strap anchorage hook to the vehicle anchorage point recommended in the vehicle
manual (Fig. C.5). IMPORTANT: The Top-Tether (17) must not pass over the headrest of the
vehicle. It should pass under the headrest of the vehicle. If it is not possible, remove the headrest
of the vehicle (check if it is allowed according to the vehicle manual).
• Pull the fastening strap on the other end to tighten it (Fig. C.6).
•The Top-Tether is correctly tensioned when the green indicator in the buckle is visible (Fig. C.6).
• Place the child in the seat and secure it with the harness straps (see section 4.5)
5.2 Forward-facing car seat installation for children
between 100 and 150 cm tall using the vehicle's three-
point seat belts and the ISOFIX system.
• Stow away the car seat harness before installation (see section 6.1).
Remember: The baby insert and protective pads should be stored in a safe place for future use.
• Adjust the headrest to the child's height (see section 4.3).
• Install the car seat using the ISOFIX system (see section 5.1.1)
• Secure the child in with the vehicle seat belts. Details are described in the part of the
instructions for installing the seat with the seat belts (see section 5.4)

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C.7
D.1 D.2
5.3 Removing the car seat (ISOFIX installing system)
• Press the ISOFIX release buttons (10) on both arms of the ISOFIX latch (19) simultaneously.
When the latches are released and the colour of the markers turns red, pull the seat out of the
ISOFIX guides. The car seat was removed from the ISOFIX installing system. You can slide the
ISOFIX arms (19) back into the base of the car seat (Fig. C.7).
5.4 Forward-facing car seat installation for children
between 100 and 150 cm tall (approximately 3.5 to 12 years
of age) using the vehicle three-point seat belts.
• Stow away the car seat harness before installation (see section 6.1).
Remember: The baby insert and protective pads should be stored in a safe place for future use.
• Adjust the headrest to the child's height (see section 4.3).
• Guide the shoulder belt through the green guide of the shoulder belt (2) (Fig. D.1).
• Place the child in the car seat and guide the vehicle seat belt through both waist safety harness
guides (14) (Fig. D.2).

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D.3 D.4
D.5
Fasten the vehicle seat belt, you will then hear a characteristic "click" (Fig. D.3).
Tighten the vehicle seat belt by pulling first on the waist belt section, then on the shoulder belt
section (Fig. D.4).
Make sure that the waist belt is positioned as low as possible over your child's hips, fits into the
guides and that it is fastened with a buckle. The shoulder belt should pass between the child's
shoulder and neck. The belt must not be twisted (Fig. D.5).

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E.1
6.1 Stowing away the 5-point harness
•Unfasten the latches of the shoulder pads (9), remove them from the car seat's harness straps.
•Slacken the harness by pressing the adjustment button (6), pull the harness straps forward as
much as possible.
•Pull the headrest adjustment strap (13) at the top of the headrest and raise the headrest to the
highest level. Undo the buckle and place the harness shoulder straps on the sides of the car seat.
Detach the latches of the cover on the backrest of the car seat, exposing the plastic elements.
Stow away the straps of the inner harness behind the cover.
•Fasten the harness buckle (4), pass the buckle through the buckle pad (5) and the cover. Open
the compartment at the bottom of the car seat (under the cover) and stow away the buckle (4)
in the compartment.
•Close the compartment. Place the foam insert. The shoulder straps of the harness should be
threaded through the guides in the plastic element of the car seat backrest. (Fig. E.1)

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E.2 E.3
E.4
6.2 Removing the cover
•Stow away the harness and remove the insert - if fitted (see section 6.1). Headrest: set the
headrest to the highest position, unfasten the latches and, starting from one side, carefully
remove the cover (Fig. E.2). Proceed to disassembling the shoulder pads (9) (Fig. E.3). Cover: set
the car seat to the most reclined position to make it easier to reach the latches on the back of
the car seat. Unfasten the latches on the main element of the cover - they are located in the front
and back of the car seat shell (Fig. E.4). Start removing the cover from the bottom and within the
waist guides, then pass it through the headrest.
6.3 Installing the cover
•To put the cover back on, just reverse the above sequence of actions. Align the cover with the
attachment points on the car seat. Start by installing the cover on the shell of the seat and finally
on the headrest.

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6.4 Cleaning
Only the original cover should be used, as it is an essential element of the safety of the car seat.
CAUTION The car seat must not be used without the cover.
• The cover is removable and washable with a mild powder and using a program for delicate
fabrics (30°C). Please follow the washing instructions on the cover label. The colours may fade
when washing the cover at the temperature above 30°C. The cover should not be centrifuged,
dried in a tumble dryer or ironed (it may lead to separation of the material layers).
• Plastic parts can be cleaned with soap and water. Do not use aggressive cleaning agents (such
as solvents).
• The harness can be cleaned in lukewarm soapy water.
Warning! You must not remove the metal clips from the straps.
The full text of the Terms and Conditions of the Warranty is available on the website
WWW.KINDERKRAFT.COM

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