1. Introduction
The CYBEX Sirona S is a convertible car seat designed for children from newborn up to approximately 4 years of age. It features an innovative 360° rotatable seat, allowing for easy transitions between rear-facing and forward-facing positions. This manual provides essential information for the safe installation, operation, and maintenance of your Sirona S car seat.
Image 1.1: The CYBEX Sirona S Convertible Car Seat, showcasing its design and integrated load leg.
2. Safety Information
Always prioritize your child's safety. Read and understand all warnings and instructions before using the car seat. Failure to follow these instructions could result in serious injury or death.
2.1 SensorSafe Technology
The SensorSafe chest clip integrates with a mobile application to provide alerts for potentially unsafe situations. These alerts include:
- Child unbuckles themselves.
- Back seat temperature is too warm or too cold.
- Child has been seated for an extended period.
- Driver accidentally leaves the child behind.
Image 2.1: A smartphone screen showing a SensorSafe alert, indicating a child has unbuckled the chest clip.
2.2 Advanced Protection Features
- Linear Side-Impact Protection (L.S.P.): This system absorbs up to 25% more impact in a side collision compared to the same car seat without L.S.P. extended.
- Anti-Rebound Design: Reduces car seat rebound movement in the event of a crash.
- Load Leg: Reduces rotation in certain crashes by up to 30% and absorbs energy.
Image 2.2: Visual representation of the EasyLock Bar, Load Leg, and Anti-Rebound Base with L.S.P. features.
3. Setup and Installation
Proper installation is critical for safety. Always refer to your vehicle's owner's manual for specific car seat installation instructions and locations.
3.1 Installation Methods
The Sirona S can be installed using your vehicle's seat belt system. The EasyLock™ Bar simplifies this process.
- EasyLock™ Bar: This feature reduces the force needed for secure installation by up to 4 times. Engage the EasyLock Bar with your vehicle's seat belt.
- One-Time Belt Installation: The design allows for a seamless transition between rear-facing and forward-facing modes without requiring re-installation of the vehicle belt.
- Dual-Level Indicators: Ensure the car seat is at the proper recline angle by checking the integrated dual-level indicators.
Image 3.1: Detailed view of the one-time vehicle belt installation mechanism within the car seat base.
3.2 Rear-Facing and Forward-Facing Positions
The Sirona S supports both rear-facing and forward-facing orientations. The 360° rotatable seat allows for easy switching between these positions.
- Rear-Facing: Recommended for infants and toddlers, typically from 4 lbs up to a certain weight/height limit as specified in the product manual.
- Forward-Facing: For older children who meet the minimum weight and height requirements for forward-facing.
Always ensure the car seat is securely installed and does not move more than one inch side-to-side or front-to-back at the belt path.
4. Operating Instructions
4.1 360° Rotating Seat
The Sirona S features a 360° rotatable seat for convenient loading and unloading of your child. To rotate the seat, locate the rotation release mechanism (usually a button or lever) at the front of the seat base. Press and hold the mechanism while rotating the seat to the desired position. Ensure the seat clicks securely into place before driving.
Image 4.1: A parent demonstrating the ease of placing a child into the car seat due to its swivel function.
4.2 Harness and Headrest Adjustment
The car seat features a 12-position adjustable headrest with a no-rethread harness. This allows you to adjust the height of the shoulder straps and headrest simultaneously as your child grows, ensuring a proper fit without the need to re-thread the harness.
- To adjust, locate the headrest adjustment lever (typically at the top of the headrest).
- Squeeze the lever and slide the headrest up or down to the appropriate height.
- Ensure the shoulder straps are at or just below your child's shoulders for rear-facing, and at or just above for forward-facing.
4.3 SensorSafe App Usage
To utilize the SensorSafe features, download the SensorSafe app on your smartphone and follow the in-app instructions for pairing the chest clip with your device. Ensure the SensorSafe receiver is plugged into your vehicle's OBDII port (if applicable) for full functionality.
5. Maintenance
5.1 Cleaning Instructions
The fabric covers of the Sirona S car seat are machine washable. Refer to the care label on the fabric for specific washing instructions. Typically, covers can be machine washed on a delicate cycle with cold water and mild detergent. Do not bleach or tumble dry. Air dry only.
The plastic and metal parts of the car seat can be wiped clean with a damp cloth and mild soap. Do not use abrasive cleaners or solvents.
5.2 Inspection
Regularly inspect the car seat for any signs of damage, wear, or missing parts. Check the harness straps, buckles, and LATCH connectors for proper function. If any components are damaged, contact customer support for replacement parts or guidance. Do not use a damaged car seat.
6. Troubleshooting
6.1 Installation Difficulty
If you experience difficulty achieving a secure installation (car seat moves more than one inch at the belt path):
- Ensure the vehicle seat belt is routed correctly through the designated belt path for the chosen orientation (rear-facing or forward-facing).
- Apply firm pressure to the car seat while tightening the vehicle seat belt.
- Verify the EasyLock Bar is fully engaged.
- Check the dual-level indicators to confirm the correct recline angle.
- Consult your vehicle's owner's manual and the car seat manual for specific instructions. Professional car seat technicians can also provide assistance.
6.2 SensorSafe App Issues
If the SensorSafe app is not functioning correctly or providing false alerts:
- Ensure your smartphone's Bluetooth is enabled and the app is open or running in the background.
- Verify the SensorSafe receiver is securely plugged into your vehicle's OBDII port.
- Check for app updates in your device's app store.
- If issues persist, try unpairing and re-pairing the SensorSafe chest clip with the app.
7. Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 25.3 x 20 x 25.3 inches |
| Item Model Number | 519004437 |
| Target Gender | Unisex |
| Maximum Weight Recommendation | 65 Pounds |
| Minimum Height Recommendation | 17 Inches |
| Maximum Height Recommendation | 49 Inches |
| Material Type | Polyester (100% Polyester) |
| Care Instructions | Machine Washable |
| Number of Reclining Positions | 12 |
| Batteries Required | Yes (for SensorSafe) |
| Orientation | Rear Facing, Forward Facing |
| Rear-Facing Minimum Child Weight | 4 Pounds |
| Forward-Facing Maximum Child Weight | 65 Pounds |
| Harness Type | 5-Point |
| Item Weight | 30.4 pounds |
| Installation Type | Seat Belt |
8. Warranty and Support
For detailed warranty information, please refer to the warranty card included with your product or visit the official Cybex website. Keep your proof of purchase for warranty claims.
For technical support, replacement parts, or further assistance, please contact Cybex customer service through their official website or the contact information provided in your product packaging.
