1. Product Overview
The Chicco Fit4 4-in-1 Convertible Car Seat is designed to adapt to your child's growth through four distinct stages, providing optimal fit, comfort, and safety from infancy to booster age. This car seat simplifies the process of correctly securing your child at each developmental phase.

Image 1: Chicco Fit4 4-in-1 Convertible Car Seat, Onyx.

Image 2: Visual representation of the four stages: Infant (rear-facing), Toddler (rear-facing), Preschooler (forward-facing), and Big Kid (booster).
2. Safety Information
Always read and follow all instructions and warnings provided in the complete user manual. Proper installation and use are critical for child safety. Ensure the car seat is correctly installed for your child's weight, height, and developmental stage.
DuoGuard Protection
The DuoGuard system provides two layers of protection with a steel-reinforced frame and EPS energy-absorbing foam. This design surrounds the head and torso, offering enhanced safety throughout every stage of use.

Image 3: DuoGuard side-impact protection for head and torso.
Harness System
The car seat features a 5-point harness system for optimal security in the rear-facing and forward-facing modes. The 10-position headrest adjusts simultaneously with the harness to accommodate your child's growth, ensuring a proper fit.
3. Setup and Installation
The Chicco Fit4 is designed for easy and correct installation. Refer to the full manual for detailed step-by-step instructions specific to your vehicle and child's stage.
Key Installation Features:
- ReclineSure Leveling System: Offers 9 recline positions to achieve an accurate angle in your vehicle.
- RideRight Bubble Levels: Integrated bubble levels provide clear indication of correct recline angle for both rear-facing and forward-facing installations.
- SuperCinch LATCH Tightener: Uses force-multiplying technology to achieve a tight and secure fit with minimal effort when using LATCH connectors.
- LockSure Belt-Tightening System: Ensures a secure installation using the vehicle's seat belt with easy-to-follow belt paths.

Image 4: ReclineSure Leveling System with 9 recline positions.

Image 5: SuperCinch LATCH Tightener for secure installation.
Installation Videos
For visual guidance on installation and use in all four stages, scan the QR code located on the side of your car seat or visit fit4stages.com.
Video 1: Chicco Fit4 Duo Guard Update. This video demonstrates the DuoGuard protection features of the car seat.
Video 2: Chicco Fit4 Demo - 15s. A quick demonstration of the Fit4 car seat's features and ease of use.
4. Operating Modes (4-Stage FitKit System)
The 4-Stage FitKit System provides optimal fit and comfort through multi-staged construction and easy-to-remove layers, allowing the car seat to grow with your child.
Stage 1: Infant (Rear-Facing)
- Weight Range: 4-16 lbs
- Orientation: Rear-Facing
- Configuration: Use with infant positioner and head support.

Image 6: Stage 1 Infant, rear-facing for children 4 to 16 lbs.
Stage 2: Toddler (Rear-Facing)
- Weight Range: 12-40 lbs
- Orientation: Rear-Facing
- Configuration: Remove infant positioner.

Image 7: Stage 2 Toddler, rear-facing for children 12 to 40 lbs.
Stage 3: Preschooler (Forward-Facing)
- Weight Range: 25-65 lbs
- Orientation: Forward-Facing
- Configuration: Remove toddler pad. Use 5-point harness.

Image 8: Stage 3 Preschooler, forward-facing for children 25 to 65 lbs.
Stage 4: Big Kid (Booster)
- Weight Range: 40-100 lbs
- Orientation: Forward-Facing
- Configuration: Use as a high-back booster with vehicle's seat belt.

Image 9: Stage 4 Big Kid, booster mode for children 40 to 100 lbs.
5. Additional Features
- Space-Saving Design: The slim profile and CupFolders are designed to optimize space in your vehicle, especially useful for multiple car seats.
- CupFolders: Removable and dishwasher-safe CupFolders provide convenient storage and are easy to clean.

Image 10: Space-saving design allowing multiple car seats to fit.

Image 11: CupFolders with push-button removal for convenience.
6. Maintenance
- Seat Pad: The seat pad is machine washable for easy cleaning. Refer to the care label for specific washing instructions.
- Harness and Buckle: Wipe clean with a damp cloth. Do not machine wash or immerse in water.
- Plastic and Metal Parts: Wipe clean with mild soap and water.
7. Troubleshooting
If you encounter any issues with your Chicco Fit4 car seat, please refer to the comprehensive troubleshooting section in your full user manual. Common issues and their solutions are detailed there. For further assistance, contact Chicco customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 21.5 x 19 x 27 inches |
| Item Model Number | 05079645240070 |
| Item Weight | 26 pounds |
| Target Gender | Unisex |
| Material Type | Foam |
| Material Composition | 69.0% Plastic, 18.0% Metal, 13.0% Fabric & Fill |
| Care Instructions | Machine washable seat pad |
| Number of Reclining Positions | 10 |
| Harness Type | 5-Point |
| Installation Type | LATCH |
| Color | Onyx |

Image 12: Product dimensions of the Chicco Fit4 car seat.
9. Warranty and Support
For warranty information, product registration, or customer support, please visit the official Chicco USA website or contact their customer service department. Keep your purchase receipt for warranty claims.
Visit the Chicco Store: Chicco USA Store





