Cybex Sirona SX2 i-Size Child Car Seat Instruction Manual

1. Introduction

This manual provides essential information for the safe and correct installation, operation, and maintenance of your Cybex Sirona SX2 i-Size child car seat. Please read these instructions carefully before using the product and keep them for future reference. The Cybex Sirona SX2 i-Size is designed to provide optimal safety and comfort for your child, complying with the R129 safety standard.

Cybex Sirona SX2 i-Size child car seat in Soho Grey

Figure 1.1: Cybex Sirona SX2 i-Size Child Car Seat (Soho Grey)

2. Safety Information

The Cybex Sirona SX2 i-Size is engineered with advanced safety features to protect your child. Adherence to the following guidelines is crucial for maximum safety:

R129 Compliance: This car seat meets the latest European safety standard R129 (i-Size), ensuring enhanced protection for your child.
Rear-Facing Position: For optimal safety, especially for infants and toddlers, the seat should be used in the rear-facing position for as long as possible, up to 105 cm in height. This position significantly reduces the risk of injury in a frontal collision by distributing impact forces across the car seat shell.
Advanced Linear Side-impact Protection (L.S.P. System): This system is pre-set and requires no manual operation. In conjunction with the energy-absorbing shell, it reduces the force of a side impact by approximately 25%.
Energy Reduction Technology: When used in the forward-facing position, this technology reduces impact forces. The impact is transmitted through the harness system to the car seat and dissipated by energy-absorbing materials, reducing the force on the child's neck by approximately 20%.
Always ensure the child is securely fastened with the 5-point harness system.
Never leave your child unattended in the car seat.

Illustration of the Advanced Linear Side-impact Protection (L.S.P. System) on the Cybex Sirona SX2 i-Size car seat

Figure 2.1: Advanced Linear Side-impact Protection (L.S.P. System)

3. Product Features

The Cybex Sirona SX2 i-Size offers several features designed for ease of use and child comfort:

360° Rotation Function: Allows for easy placement and removal of your child from the car seat, reducing strain on your back. It also simplifies switching between rear-facing and forward-facing positions.
One-Hand Recline Function: The seat can be reclined with one hand, providing comfortable sleeping positions for your child during travel. Different recline settings are available for both rear-facing and forward-facing modes.
ISOFIX Installation: Ensures a secure and correct installation in your vehicle.

Diagram highlighting key features of the Cybex Sirona SX2 i-Size: rear-facing capability, side protection, one-hand recline, 360-degree rotation, and ISOFIX fixation.

Figure 3.1: Overview of Car Seat Features

4. Setup and Installation

Proper installation is critical for your child's safety. The Cybex Sirona SX2 i-Size uses the ISOFIX system for secure attachment.

4.1 ISOFIX Installation

Locate the ISOFIX anchor points in your vehicle. Refer to your vehicle's owner's manual for their exact position.
Extend the ISOFIX connectors from the car seat base.
Align the ISOFIX connectors with the vehicle's anchor points and push firmly until they click into place. Green indicators should appear, confirming correct attachment.
Push the car seat firmly against the vehicle's backrest to ensure a tight fit.
Adjust the load leg (support leg) to the vehicle floor until it is firmly supported. Ensure the indicator on the load leg shows green.

Close-up view of the ISOFIX connection point on the Cybex Sirona SX2 i-Size car seat base

Figure 4.1: ISOFIX Connection Point

5. Operating Instructions

5.1 360° Rotation

To rotate the car seat, locate the rotation release lever (usually at the front of the base). Press the lever and turn the seat to the desired position (rear-facing or forward-facing, or towards the car door for child placement). Ensure the seat locks securely into place before driving.

Illustration showing the 360-degree rotation feature of the Cybex Sirona SX2 i-Size car seat, demonstrating how it can face different directions.

Figure 5.1: 360° Rotation Feature

5.2 Reclining the Seat

The seat offers multiple recline positions for your child's comfort. To recline, locate the recline adjustment handle (typically under the front edge of the seat). Pull the handle and adjust the seat to the desired angle. Release the handle to lock the seat in position.

Illustration demonstrating the one-hand recline function of the Cybex Sirona SX2 i-Size car seat, showing the seat adjusting to different angles.

Figure 5.2: One-Hand Recline Function

5.3 Harness Adjustment

The 5-point harness system should be adjusted to fit snugly around your child. The shoulder straps should be at or slightly below shoulder level when rear-facing, and at or slightly above shoulder level when forward-facing. Adjust the headrest height simultaneously with the harness to ensure proper fit.

6. Maintenance

Regular maintenance ensures the longevity and safety of your car seat.

Cleaning: The fabric covers are removable and machine washable (check the care label for specific instructions). Plastic parts can be cleaned with a mild detergent and water. Do not use harsh chemicals or abrasive cleaners.
Inspection: Periodically check all parts for wear and tear, especially the harness, buckles, and ISOFIX connectors. If any damage is found, discontinue use and contact customer support.
Storage: Store the car seat in a cool, dry place away from direct sunlight when not in use.

7. Troubleshooting

If you encounter any issues with your Cybex Sirona SX2 i-Size car seat, please refer to the following common solutions:

Difficulty with ISOFIX installation: Ensure the ISOFIX connectors are fully extended and aligned correctly with the vehicle's anchor points. Push firmly until you hear a click and see the green indicators. Check that no fabric or debris is obstructing the connection.
Seat not rotating smoothly: Ensure the rotation release lever is fully engaged. Check for any obstructions around the base of the seat.
Harness too tight/loose: Adjust the harness length using the central adjuster strap. Ensure the shoulder straps are at the correct height relative to your child's shoulders.
Recline function not working: Ensure the recline adjustment handle is fully pulled before attempting to change the angle. Check for any obstructions preventing movement.

If the problem persists, please contact Cybex customer support for assistance.

8. Specifications

Feature	Specification
Product Dimensions	71 cm (Depth) x 49 cm (Width) x 68 cm (Height)
Product Weight	14.1 kg
Recommended Maximum Weight	18 kg
Recommended Maximum Height	105 cm
Target Age	Newborn to approximately 4 years (up to 105 cm)
Harness Type	5-point harness
Installation Type	ISOFIX
Safety Standard	UN R129/03 (i-Size)
Model Year	2021
Color	Soho Grey

9. Warranty and Support

Cybex products are manufactured to the highest quality standards. For information regarding warranty terms and conditions, please refer to the warranty card included with your product or visit the official Cybex website. For customer support, spare parts, or service inquiries, please contact your local Cybex retailer or the official Cybex customer service department.

Online Resources: For additional support and product registration, please visit the official Cybex Brand Store.

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