Introduction
The Cybex Aton G is a lightweight infant car seat designed for safety and comfort. Weighing only 9 lbs., it incorporates linear side-impact protection to reduce collision forces and in-shell air ventilation for natural airflow. This manual provides essential information for the proper installation, use, and maintenance of your Aton G infant car seat.

Image: The Cybex Aton G Infant Car Seat in Ocean Blue, shown with its accompanying base, ready for installation.
Key Features
- 11-Position Adjustable Headrest with No-Rethread Harness: The integrated harness adjusts with the headrest, ensuring a proper fit as your child grows, without the need for rethreading.
- Linear Side Impact Protection: Integrated into the car seat shell, this feature effectively reduces collision forces on the child in the event of a side impact crash.
- Lightweight Convenience: At only 9 lbs., the Aton G is one of the lightest infant car seats on the market, making it easy to carry and transfer.
- Fire Retardant Chemical Free Fabric: The fabric meets federal safety standards without the use of added fire-retardant chemicals.

Image: A visual summary of the Cybex Aton G's key features, including its lightweight design, adjustable headrest, in-shell air ventilation, linear side-impact protection, travel system compatibility, and FR chemical-free fiber.
Setup
Proper installation is crucial for your child's safety. Always refer to the full instruction manual provided with your car seat for detailed steps and vehicle-specific instructions.
Base Installation (LATCH or Seatbelt)
- Position the car seat base rear-facing on the vehicle seat.
- Choose your installation method: LATCH (Lower Anchors and Tethers for Children) or vehicle seatbelt.
- For LATCH: Attach the LATCH connectors from the base to your vehicle's lower anchors. Ensure a tight connection.
- For Seatbelt: Route the vehicle's lap and shoulder belt through the designated belt path on the base. Buckle and tighten the belt securely, removing all slack.
- Verify the base is installed tightly by pulling on it at the belt path. It should not move more than one inch side-to-side or front-to-back.
- Check the recline indicator on the base to ensure it is within the acceptable range for your child's weight and age. Adjust the recline foot if necessary.
Car Seat Attachment to Base
- Align the infant car seat with the installed base.
- Lower the car seat onto the base until it clicks securely into place.
- Pull up on the car seat handle to confirm it is firmly attached to the base.

Image: This diagram illustrates key features related to setup and safety, including the Easy Install Safelock system, Linear Side-Impact Protection, Travel System compatibility, and In-Shell Air Ventilation for enhanced comfort.
Operating
Follow these guidelines for safely placing your child in the car seat and using its features.
Securing Your Child
- Place your child in the car seat with their back flat against the seat back.
- Bring the harness straps over your child's shoulders and buckle the crotch buckle.
- Connect the chest clip pieces together and slide it up to armpit level.
- Tighten the harness straps until they are snug against your child's body. You should not be able to pinch any slack at the shoulder.
Adjusting the Headrest and Harness
- The Aton G features an 11-position adjustable headrest with a no-rethread harness.
- To adjust, squeeze the headrest adjustment lever (usually located at the back or top of the headrest) and slide the headrest up or down.
- Ensure the shoulder straps are at or just below your child's shoulders when rear-facing.

Image: A detailed view of a baby secured in the Cybex Aton G car seat, emphasizing the ease of adjusting the 11-position headrest and the integrated no-rethread harness system for a perfect fit.
Carrying and Travel System Compatibility
- The lightweight design (9 lbs.) makes the Aton G easy to carry. Use the ergonomic carry handle for transport.
- The Aton G is travel system compatible and can connect to all Cybex strollers with included adapters (strollers and adapters sold separately).

Image: A woman demonstrates the lightweight convenience of the Cybex Aton G, effortlessly carrying the infant car seat from her vehicle.

Image: This graphic illustrates the Cybex Aton G's compatibility with various Cybex strollers, showcasing its integration into a complete travel system.
Maintenance
Regular cleaning and maintenance will help prolong the life of your car seat and ensure continued safety.
Cleaning Instructions
- Fabric Covers: Refer to the care label on the fabric covers for specific washing instructions. Most covers are machine washable on a delicate cycle with cold water. Do not use bleach. Air dry only.
- Harness Straps: Wipe harness straps with a damp cloth and mild soap. Do not machine wash or submerge harness straps, as this can weaken the webbing.
- Plastic and Metal Parts: Wipe plastic and metal parts with a damp cloth and mild soap. Do not use abrasive cleaners or solvents.
Storage
- Store the car seat in a cool, dry place away from direct sunlight when not in use.
- Do not store heavy objects on top of the car seat.
Troubleshooting
If you encounter issues with your Cybex Aton G car seat, consult the following common solutions. For persistent problems, contact customer support.
Common Issues and Solutions
- Car Seat Feels Loose After Installation:
- Ensure the LATCH connectors or vehicle seatbelt are routed correctly through the designated belt path.
- Apply firm pressure to the car seat base while tightening the LATCH strap or seatbelt.
- Check that the recline angle is appropriate for your child's weight and age.
- Harness Straps Are Difficult to Tighten/Loosen:
- Ensure the harness straps are not twisted.
- Check for any obstructions in the harness tightening mechanism.
- Make sure the chest clip is at armpit level before tightening.
- Car Seat Not Clicking Securely onto Base:
- Verify that the base is installed correctly and not obstructing the car seat's connection points.
- Ensure no debris is blocking the locking mechanisms on either the car seat or the base.
- Apply firm, even pressure when lowering the car seat onto the base until you hear a click.
Specifications
| Attribute | Value |
|---|---|
| Product Dimensions | 26.1 x 17.5 x 14.7 inches |
| Item Model Number | 522005649 |
| Maximum Weight Recommendation | 35 Pounds |
| Material Type | Polyester |
| Style | Car Seat |
| Number of Reclining Positions | 4 |
| Batteries Required | No |
| Orientation | Rear Facing |
| Harness Type | 5-Point |
| Item Weight | 9 pounds |
| Brand | Cybex |
| Installation Type | Latch |
| Color | Ocean Blue |
Warranty Information
Cybex products are manufactured with the highest quality standards and come with a limited warranty. Please retain your proof of purchase for warranty claims.
For detailed warranty terms and conditions, including coverage period and exclusions, please refer to the warranty card included with your product or visit the official Cybex website. The warranty typically covers manufacturing defects in materials and workmanship under normal use.
Support
For further assistance, questions, or to report any issues with your Cybex Aton G infant car seat, please contact Cybex Customer Service.
Contact Information
- Website: Visit the official Cybex website for FAQs, product registration, and support resources.
- Phone: Check the Cybex website or your product packaging for the most current customer service phone number.
- Email: Contact customer support via email for non-urgent inquiries.
When contacting support, please have your product model number (522005649) and date of manufacture ready, which can be found on a label on the car seat.





