1. Introduction
This instruction manual provides essential information for the correct installation, safe use, and maintenance of your Kikka Boo i-Twist i-Size Car Seat. Designed for children from birth up to approximately 12 years old (40-150 cm), this car seat offers advanced safety features and comfort. Please read this manual thoroughly before using the car seat and keep it in a safe place for future reference. Proper installation and use are crucial for your child's safety.

Image 1.1: The Kikka Boo i-Twist i-Size Car Seat, showcasing its overall design and light grey fabric.
2. Safety Information
Your child's safety is paramount. Adhere to all warnings and instructions to minimize risks.
- Always read and understand the entire instruction manual before installation and use.
- Never leave your child unattended in the car seat, even for a short period.
- Ensure the car seat is correctly installed using the Isofix system and support leg as described in this manual.
- The 5-point harness must always be properly adjusted and fastened when the child is in the seat.
- This car seat is designed for children from 40 cm to 150 cm in height.
- Use the rear-facing position for children from 40 cm to 105 cm.
- Use the forward-facing position for children from 76 cm to 150 cm.
- Do not use the car seat if it has been involved in an accident, even if there is no visible damage. Replace it immediately.
- Only use original Kikka Boo accessories and spare parts.
3. Product Features
The Kikka Boo i-Twist i-Size Car Seat is equipped with several features designed for safety and comfort:
- i-Size Standard: Complies with the latest European safety standard for child car seats.
- Isofix System: Provides secure and rigid attachment to the vehicle's Isofix anchor points.
- Support Leg: Adds stability and reduces rotation in case of impact.
- 360° Swivel Seat: Allows easy placement and removal of the child, and effortless switching between rear-facing and forward-facing positions.
- 5 Recline Positions: Adjustable recline for optimal comfort in both rear-facing and forward-facing modes.
- 14-Position Adjustable Headrest: Ensures proper head and neck support as your child grows.
- 5-Point Safety Harness: Securely holds your child with padded shoulder straps.
- SPS (Side Protection System): Enhanced side impact protection.
- Rebound Bar: An additional safety feature on the base to minimize rebound movement in a collision.
- One-Hand Safety Belt Adjustment: Simplifies securing your child.
- Soft Full-Body Support Cushion: Provides comfort and proper positioning for infants.
- Memory Foam Headrest Cushion: Offers superior comfort and support for the child's head.

Image 3.1: The car seat illustrating key features such as the headrest, harness, and side protection.
4. Components Overview
Familiarize yourself with the main components of your Kikka Boo i-Twist i-Size Car Seat:
- Seat Unit: The main padded seat where the child sits.
- Base: The foundation of the car seat, containing the Isofix connectors and support leg.
- Isofix Connectors: Extendable arms that attach to your vehicle's Isofix anchor points.
- Support Leg: Extends from the base to the vehicle floor for stability.
- 5-Point Harness: Consists of two shoulder straps, two waist straps, and a crotch strap with a buckle.
- Headrest: Adjustable component for head and neck support.
- Recline Adjustment Lever: Used to change the seat's recline angle.
- Swivel Release Button/Lever: Activates the 360° rotation function.
- Infant Insert/Support Cushion: Removable padding for newborns and smaller infants.

Image 4.1: Front view of the car seat, showing the headrest, harness, and infant insert.
5. Setup and Installation
Follow these steps carefully to install the car seat in your vehicle.
5.1. Isofix Installation
- Locate the Isofix anchor points in your vehicle. These are usually found between the seat back and seat cushion.
- Extend the Isofix connectors from the car seat base by pressing the release buttons (refer to Image 5.1).
- Align the Isofix connectors with the vehicle's anchor points and push firmly until you hear an audible 'click' and the indicators turn green.
- Push the car seat firmly against the vehicle's seat back to ensure a tight fit.
5.2. Support Leg Adjustment
- Extend the support leg from the base until it firmly touches the vehicle's floor.
- Ensure the support leg indicator shows green, confirming correct engagement.
- The support leg must always be used for stability.
5.3. Rear-Facing Installation (40-105 cm)
For infants and toddlers (40-105 cm), the car seat must be installed in the rear-facing position.
- Ensure the Isofix connectors and support leg are correctly installed as described above.
- Rotate the seat unit to face the rear of the vehicle using the 360° swivel function.
- For newborns, ensure the full-body support cushion is in place.
5.4. Forward-Facing Installation (76-150 cm)
For older children (76-150 cm), the car seat can be installed in the forward-facing position.
- Ensure the Isofix connectors and support leg are correctly installed.
- Rotate the seat unit to face the front of the vehicle.
- At this stage, the 5-point harness may be removed and the child secured using the vehicle's 3-point seat belt, depending on the child's height and weight (refer to local regulations and car seat markings).

Image 5.1: Side view of the car seat, highlighting the Isofix connectors and the adjustable support leg.
6. Operating Instructions
Learn how to use the various functions of your car seat.
6.1. Securing Your Child with the 5-Point Harness
- Place your child in the car seat.
- Bring the two buckle tongues together and insert them into the central buckle until you hear a 'click'.
- Pull the harness adjustment strap at the front of the seat to tighten the harness. Ensure it is snug against your child's body without being too tight.
- To loosen the harness, press the harness release button (usually located under a flap at the front of the seat) and pull the shoulder straps forward.
6.2. Adjusting the Headrest and Harness Height
The headrest and harness height adjust simultaneously to ensure optimal fit.
- Locate the headrest adjustment lever at the top of the headrest.
- Squeeze the lever and move the headrest up or down to one of the 14 available positions.
- Ensure the shoulder straps are at or just below your child's shoulders when rear-facing, and at or just above when forward-facing.

Image 6.1: Top view of the car seat, illustrating the adjustable headrest and the 5-point harness system.
6.3. Adjusting Recline Positions
The seat offers 5 recline positions for comfort.
- Locate the recline adjustment lever, typically at the front or side of the seat base.
- Press the lever and simultaneously push or pull the seat unit to the desired recline position.
- Ensure the seat locks securely into the chosen position.
6.4. Using the 360° Swivel Function
The swivel function allows for easy access and direction changes.
- Ensure the car seat is not under tension from the vehicle's seat belt (if used in booster mode).
- Locate the swivel release button or lever on the base.
- Press the button/lever and rotate the seat unit to the desired orientation (e.g., towards the car door for child placement, or to switch between rear-facing and forward-facing).
- Release the button/lever and ensure the seat locks securely in place.
7. Maintenance and Cleaning
Regular maintenance ensures the longevity and hygiene of your car seat.
- Fabric Covers: The polyester fabric covers can be removed for cleaning. Refer to the care label on the fabric for specific washing instructions. Typically, machine wash on a gentle cycle with mild detergent and air dry. Do not tumble dry.
- Plastic Parts: Wipe plastic parts with a damp cloth and mild soap. Do not use abrasive cleaners or solvents.
- Harness System: Inspect the harness straps regularly for wear or damage. Clean with a damp cloth. Do not lubricate the buckle.
- Storage: When not in use, store the car seat in a dry place away from direct sunlight.
8. Troubleshooting
If you encounter issues with your car seat, refer to the following common solutions:
- Difficulty with Isofix Connection: Ensure the Isofix connectors are fully extended and aligned with the vehicle's anchor points. Push firmly until the green indicators appear.
- Support Leg Not Engaging: Make sure the support leg is fully extended and firmly planted on the vehicle floor. Check for any obstructions.
- Harness Not Tightening/Loosening: Check for twists in the harness straps. Ensure the harness release button is not stuck. Pull the adjustment strap smoothly.
- Seat Not Swiveling: Ensure the swivel release button/lever is fully engaged. The seat may not swivel if it's under tension from a vehicle seat belt or if the recline is not in a neutral position.
- Recline Not Adjusting: Ensure the recline adjustment lever is fully pressed and the seat is not obstructed.
If problems persist, consult the retailer or Kikka Boo customer support.
9. Specifications
| Specification | Detail |
|---|---|
| Model Name | i-Twist i-Size |
| Model Number | 31002100046 |
| Recommended Child Height | 40 cm - 150 cm |
| Recommended Child Age | From birth to approximately 12 years |
| Maximum Supported Weight | 36 kg |
| Product Dimensions (L x W x H) | 55 x 43 x 62 cm |
| Item Weight | 15.7 kg |
| Main Material | Polyester |
| Installation Method | Isofix with Support Leg |
| Safety Standard | i-Size (ECE R129) |
10. Warranty and Support
For information regarding the warranty period and terms for your Kikka Boo i-Twist i-Size Car Seat, please refer to the documentation provided at the time of purchase or contact your retailer. You may also visit the official Kikka Boo website for customer support and further assistance.