Introduction
Thank you for choosing the Safety 1st Yorker i-Size Car Seat. This manual provides essential information for the correct installation, use, and maintenance of your car seat. Please read all instructions carefully before use and keep this manual for future reference. Proper installation and use are crucial for your child's safety.

Image: The Safety 1st Yorker i-Size Car Seat with a child secured, highlighting the 5-point harness and adjustable headrest.
Important Safety Information
- Always secure your child in the car seat, even for short journeys.
- Never leave your child unattended in the car seat.
- Ensure the car seat is correctly installed in your vehicle using the 3-point seat belt system.
- Do not use the car seat if it has been involved in an accident, even if there is no visible damage. Internal damage may compromise its safety.
- Follow the age, weight, and height recommendations for rear-facing and forward-facing modes.
- Ensure the harness straps are snug and not twisted, and the chest clip is at armpit level.
- Do not modify the car seat or use accessories not approved by Safety 1st.
- Keep the car seat away from direct sunlight to prevent overheating of surfaces that could burn your child.
Product Overview
The Safety 1st Yorker i-Size Car Seat is designed to provide safety and comfort for your child from birth up to 36 kg (approximately 150 cm in height). It features i-Size certification for enhanced safety, 3-point vehicle belt installation, reinforced side protection, and multiple adjustment options to adapt to your child's growth.
Key Features:
- i-Size certified for rigorous safety standards.
- Installation with vehicle's 3-point seat belt, compatible with vehicles without ISOFIX.
- Suitable from birth up to 36 kg (approx. 40 cm to 150 cm height).
- Rear-facing position up to 15 months (up to 105 cm).
- Forward-facing position from 15 months (from 105 cm up to 150 cm / 36 kg).
- Multiple recline positions for comfort.
- Height-adjustable headrest.
- Removable and washable soft, breathable fabric covers.
- 5-point harness with centralized adjustment.
- Robust structure with SideProtection and SafeSide technologies for enhanced side impact absorption.
- Padded and removable newborn reducers.

Image: Detailed view of the car seat's features, including its robust structure, 5-point harness, multiple recline positions, adjustable headrest, and soft, washable fabric.
Installation
The Yorker i-Size car seat is installed using your vehicle's 3-point seat belt. Always refer to your vehicle's owner manual for specific car seat installation instructions and compatible seating positions.
General Installation Guidelines:
- Place the car seat on the desired vehicle seat.
- Route the vehicle's 3-point seat belt through the designated belt guides on the car seat. Ensure the belt is not twisted.
- Buckle the vehicle's seat belt securely.
- Pull the shoulder portion of the seat belt to remove any slack, ensuring the car seat is tightly secured against the vehicle seat. It should not move more than 1 inch (2.5 cm) side-to-side or front-to-back at the belt path.
Rear-Facing Mode (Birth to 15 months / up to 105 cm):
For infants and young toddlers, the car seat must be installed in the rear-facing position. This provides optimal protection for the child's head, neck, and spine.
- Ensure the car seat is reclined to the most appropriate position for a newborn or infant.
- Use the padded newborn reducers for proper support and fit.
- Route the vehicle's 3-point seat belt through the blue-colored rear-facing belt guides.
- Confirm the car seat is stable and does not move excessively.
Forward-Facing Mode (From 15 months / 105 cm to 36 kg / 150 cm):
Once your child meets the minimum requirements for forward-facing (at least 15 months old and 105 cm tall), the car seat can be installed in the forward-facing position.
- Route the vehicle's 3-point seat belt through the red-colored forward-facing belt guides.
- Adjust the headrest so that the harness straps are at or slightly above your child's shoulders.
- Ensure the car seat is stable and does not move excessively.

Image: Visual guide illustrating the rear-facing installation (up to 105 cm), forward-facing installation (up to 150 cm or 36 kg), and the method for securing the car seat with a 3-point vehicle seat belt.
Adjustments
Headrest Adjustment:
The headrest can be adjusted to multiple height positions (4 positions) to accommodate your child's growth. To adjust, locate the headrest adjustment lever (usually at the top or back of the headrest), squeeze it, and slide the headrest up or down until it is at the correct height. Ensure the harness straps are at or slightly below your child's shoulders for rear-facing, and at or slightly above for forward-facing.
Recline Positions:
The car seat offers multiple recline positions for your child's comfort. To recline, locate the recline lever (typically at the front base of the seat), squeeze it, and adjust the seat to the desired angle. Ensure the recline position is appropriate for the installation mode (rear-facing or forward-facing) and your child's age.
5-Point Harness Adjustment:
The 5-point harness system ensures your child is securely restrained. To tighten or loosen the harness, locate the harness adjustment strap (usually at the front of the seat, near the child's feet) and the harness release button. Press the release button and pull the adjustment strap to loosen, or pull the adjustment strap to tighten. Ensure the harness is snug against your child's body, with no slack, and the chest clip is positioned at armpit level.
Newborn Reducer Use:
For newborns and smaller infants, use the padded and removable reducers to provide proper head and body support. As your child grows, these reducers can be removed to create more space and ensure a comfortable fit.
Care and Maintenance
Cleaning the Fabric Covers:
The fabric covers of the Yorker i-Size car seat are removable and washable. Refer to the care label on the fabric for specific washing instructions. Generally, machine wash on a gentle cycle with cold water and mild detergent, then air dry. Do not bleach, iron, or tumble dry.
Cleaning the Harness and Buckle:
Wipe the harness straps with a damp cloth and mild soap. Do not immerse the buckle or harness straps in water, as this can weaken the webbing. Ensure all components are completely dry before reassembly.
Cleaning the Shell:
Wipe the plastic shell and other hard surfaces with a damp cloth and mild soap. Avoid using abrasive cleaners or solvents.
Specifications
| Brand | Safety 1st |
| Model | Yorker i-Size |
| Installation Type | Vehicle 3-point seat belt |
| Material | Polyester |
| Color | Black |
| Age Range Description | Newborn |
| Maximum Weight Recommendation | 36 kg |
| Maximum Height Recommendation | 150 cm |
| Maximum Rear-facing Weight | 13 kg |
| Minimum Forward-facing Weight | 9 kg |
| Maximum Forward-facing Weight | 36 kg |
| Item Dimensions (D x W x H) | 44.1 cm x 43 cm x 58.5 cm |
| Item Weight | 7.5 kg |
| Harness Type | 5-point internal harness |
| Number of Headrest Height Positions | 4 |
| Country of Origin | China |

Image: Diagram showing the key dimensions (height, width, depth) of the Safety 1st Yorker i-Size Car Seat.
Troubleshooting
- Car seat feels loose after installation: Ensure the vehicle's 3-point seat belt is pulled taut and all slack is removed. Re-check the belt path and ensure it is correctly routed through the designated guides. The car seat should not move more than 1 inch (2.5 cm) at the belt path.
- Harness straps are difficult to adjust: Check for any twists in the harness straps. Ensure the harness adjustment strap is pulled smoothly. If the harness is still stiff, ensure no fabric or debris is obstructing the mechanism.
- Child seems uncomfortable: Verify that the headrest is at the correct height for your child's shoulders. Ensure the recline position is appropriate for their age and the installation mode. For infants, ensure newborn reducers are correctly positioned.
- Buckle is hard to open/close: Check for any food debris or foreign objects in the buckle mechanism. Clean the buckle as per the maintenance instructions.
Warranty and Support
Warranty Information:
The Safety 1st Yorker i-Size Car Seat typically comes with a manufacturer's warranty. Additionally, an extended warranty against failures and defects may be available for purchase. Please refer to your purchase documentation for specific warranty terms and registration details.
Customer Support:
For further assistance, product registration, or to inquire about replacement parts, please visit the official Safety 1st store or contact customer service. You can find more information and support resources on the Safety 1st Brand Store.