Safety 1st 3-in-1 Car Seat Manual: A Comprehensive Guide
This manual provides essential guidance for the Safety 1st Grow and Go 3-in-1 car seat, ensuring your child’s safety and comfort during every journey.
Proper installation, harnessing, and understanding of its features are paramount; registration is crucial for safety updates and recalls.
Always refer to the user guide’s effective date and the car seat’s manufacture date for compatibility and the latest safety information.
The Safety 1st Grow and Go 3-in-1 Convertible Car Seat (Item No CC138 & CC150) is designed to adapt as your child grows, offering extended use from infancy through childhood.
This versatile car seat transitions seamlessly between three modes: rear-facing for infants, forward-facing for toddlers, and booster mode for older children, providing a secure and comfortable ride at each stage.
Prioritizing your child’s safety is paramount, and this car seat incorporates features like energy-absorbing foam and side-impact protection. It’s crucial to read and understand this manual thoroughly before installation and each use.
Remember to register your Safety 1st product to stay informed about important safety updates, recalls, and ensure your child’s continued protection. Always verify the manufacture date on the car seat against the user guide’s effective date (e.g., 6/8/2015 or 08-12-20) to ensure compatibility.
Understanding the Car Seat Modes
The Safety 1st Grow and Go 3-in-1 car seat offers three distinct modes to accommodate your child’s growth and development. Rear-facing mode is essential for infants, providing maximum protection for their developing necks and spines.
As your child grows, transition to forward-facing mode with the five-point harness, ensuring continued safety and security. Finally, booster mode is designed for older children who have outgrown the harness, positioning the vehicle’s seat belt correctly for optimal protection.
Understanding the appropriate mode for your child’s weight and height is critical. Always refer to the car seat’s weight and height limits for each mode. Proper mode selection, combined with correct installation and harnessing, guarantees the highest level of safety during travel.
Remember to adjust the harness height and recline angle as your child grows to maintain a secure and comfortable fit in each mode.
Rear-Facing Mode: Infant Safety
Rear-facing is the safest position for infants and young toddlers, minimizing the risk of injury in a crash. The Safety 1st Grow and Go 3-in-1 is designed to accommodate infants from a minimum weight, offering a secure and comfortable ride.
When installing rear-facing, it’s crucial to use the appropriate recline angle to ensure proper head and neck support. Always utilize the first or second buckle slot, as specified in the manual, for optimal positioning.
Ensure the harness straps are snug and at or below the infant’s shoulders. Regularly check the harness tightness and adjust as needed to maintain a secure fit. Never place any aftermarket products, such as padding, under the infant, as they can compromise safety.
Prioritize rear-facing as long as possible, keeping your little one protected during their early years of travel.
Forward-Facing Mode: Toddler Protection
Transitioning to forward-facing mode occurs when your child exceeds the rear-facing height or weight limits. The Safety 1st Grow and Go 3-in-1 provides robust protection for growing toddlers in this configuration.
When forward-facing, ensure the harness straps are positioned at or above the child’s shoulders. Any buckle slot can be used during forward-facing installation, offering flexibility. Always double-check the installation to confirm it’s secure and stable.
Maintain a snug harness fit, tightening until you cannot pinch any excess webbing at the shoulder. Regularly inspect the harness for wear and tear, and replace if necessary. Proper chest clip placement, at armpit level, is essential for optimal impact protection.
Continue to prioritize safety as your child grows, ensuring the car seat adapts to their changing needs.
Booster Mode: For Older Children
Booster mode is designed for older children who have outgrown the harness restraints but are still too small for adult seat belts. The Safety 1st Grow and Go 3-in-1 transitions seamlessly into a high-back or backless booster seat.
When using booster mode, the vehicle’s shoulder belt must lie across the child’s shoulder and chest, not the face or neck. Ensure the lap belt lies low and snug across the upper thighs. Proper positioning is crucial for effective protection in a collision.
The car seat’s structure guides the seat belt correctly, enhancing safety. Regularly check the belt fit as your child grows, adjusting as needed. Never allow your child to place the shoulder belt behind their back or under their arm.
Booster mode extends the lifespan of the car seat, providing continued safety as your child matures.

Installation Guide
Secure and correct installation is vital for optimal safety; utilize either the LATCH system or the vehicle seat belt method for a firm fit.
Always verify the installation angle and ensure stability before each use, following the manual’s detailed instructions carefully.
Vehicle Seat Preparation
Before installing the Safety 1st Grow and Go 3-in-1 car seat, carefully prepare the vehicle seat. Locate the vehicle’s lower anchors and top tether anchor points, consulting your vehicle owner’s manual for precise locations.
Ensure the vehicle seat is clean and free of any objects that might interfere with proper car seat installation, such as seat cushions or blankets. It’s crucial to understand your vehicle’s seating configuration and any limitations it may have regarding car seat placement.
Review the vehicle manual’s section on child restraint systems to confirm compatibility and any specific instructions for your vehicle model. Do not install the car seat on a seat with active airbags; always prioritize safety and follow manufacturer guidelines. Proper vehicle seat preparation is the foundation for a secure and reliable car seat installation.
LATCH System Installation
Utilizing the Lower Anchors and Tethers for Children (LATCH) system offers a secure installation method for the Safety 1st Grow and Go 3-in-1 car seat. Attach the car seat’s lower connectors to the vehicle’s lower anchors, ensuring a firm and audible click confirms a secure connection.
For rear-facing installation, always use the lower anchors. When forward-facing, the LATCH system can be used in conjunction with the top tether anchor for enhanced stability. Verify that the LATCH straps are not twisted and lie flat against the vehicle seat.
Pull any excess LATCH strap to tighten the connection, eliminating slack and ensuring a snug fit. Regularly check the LATCH connections to confirm they remain secure throughout use. Proper LATCH system installation is vital for maximizing the car seat’s protective capabilities.
Seat Belt Installation
When the LATCH system cannot be used, or is not preferred, secure installation via the vehicle’s seat belt is possible with the Safety 1st Grow and Go 3-in-1 car seat. Thread the vehicle’s seat belt through the designated belt path on the car seat, ensuring it lies flat and isn’t twisted.
To tighten the seat belt, push down firmly on the car seat while pulling the shoulder belt to remove any slack. Locking the seat belt is crucial; consult your vehicle’s owner’s manual for specific locking instructions – either a switchable latch plate or automatic locking latch.

Confirm the seat belt is locked and the car seat doesn’t move more than one inch side-to-side or front-to-back. Regularly check the seat belt’s tightness throughout use. Proper seat belt installation is essential for optimal child protection during travel.
Installation Angle Adjustment
Achieving the correct recline angle is vital, especially during rear-facing installation, ensuring optimal protection for infants. The Safety 1st Grow and Go 3-in-1 car seat features a built-in recline indicator and adjustable base. Use the indicator to verify the appropriate angle for your child’s age and weight.
Adjust the recline by modifying the car seat’s base, following the instructions detailed in the user manual. Ensure the bubble within the recline indicator falls within the marked zone to confirm correct positioning. Incorrect angling can compromise safety and should be rectified immediately.
Regularly check the angle as vehicle seat contours can vary. Proper angle adjustment contributes significantly to minimizing head and neck movement in a crash.
Checking Installation Security
After installing the Safety 1st Grow and Go 3-in-1 car seat, rigorous security checks are essential to guarantee your child’s safety. Grasp the car seat near the belt path and attempt to move it side to side and front to back; it should not shift more than one inch in any direction.
If excessive movement is detected, retighten the LATCH connectors or the vehicle seat belt. Double-check that the belt path is correctly routed and locked. Repeat the movement test until a secure installation is achieved. A firm, stable installation is paramount for optimal crash protection.
Regularly re-evaluate the installation, especially after vehicle use or adjustments. Prioritize a secure fit to provide peace of mind on every journey.

Harnessing and Adjusting
Properly securing your child involves adjusting the harness height, ensuring a snug fit, and understanding buckle operation for optimal safety and comfort during travel.
Harness Height Adjustment
Adjusting the harness height is critical for ensuring your child’s safety and comfort as they grow. The Safety 1st Grow and Go 3-in-1 car seat features multiple harness height positions to accommodate your child’s changing size.
To adjust the harness, first, ensure the car seat is not occupied. Locate the harness adjustment strap, typically found at the top of the car seat’s shell. Release the strap and move the harness to the appropriate height slot.
For rear-facing mode, always use the lowest harness slots that allow the harness straps to be at or below your child’s shoulders. For forward-facing mode, the harness straps should be at or above your child’s shoulders.
Always re-thread the harness straps through the correct height slots after adjustment. Ensure the harness straps are not twisted and lie flat against your child’s body. A properly adjusted harness is essential for maximizing the car seat’s protective capabilities.
Buckle Operation and Release
The buckle on the Safety 1st Grow and Go 3-in-1 car seat is designed for secure and easy operation, but understanding its function is vital for proper child restraint. To buckle, firmly push the two buckle halves together until a distinct click is heard, confirming a secure connection.
Always ensure the buckle is fully engaged before each trip. To release the buckle, locate the red release button on the buckle housing. Press the button firmly; this will disengage the buckle halves, allowing you to remove your child from the car seat.
It’s crucial to note the buckle slot usage differs depending on the car seat mode. When rear-facing, you MUST use the first or second buckle slot. When forward-facing, any slot can be utilized. Regularly check the buckle for proper function and cleanliness.
Harness Tightening and Loosening
Achieving a snug and secure fit is paramount with the Safety 1st Grow and Go 3-in-1 car seat’s harness system. To tighten the harness, pull the strap(s) located at the child’s shoulders. Continue pulling until the harness is snug, allowing no slack where the straps cross the child’s collarbone.
A proper fit should prevent any twisting of the harness straps. To loosen the harness, locate the release button on the harness adjuster. Press and hold the button while simultaneously pulling on the shoulder straps. This will allow you to create the necessary slack for comfortably securing or removing your child.
Regularly check the harness tightness throughout your journey, as it can loosen with movement. Ensure the harness is always appropriately adjusted for your child’s size and clothing.
Chest Clip Positioning
The chest clip on the Safety 1st Grow and Go 3-in-1 car seat plays a vital role in correctly positioning the harness straps. It’s designed to keep the straps at the proper angle across your child’s shoulders, maximizing safety in the event of a collision.
Always position the chest clip at armpit level. This ensures the harness straps are optimally placed to distribute impact forces. The clip should never be positioned on the child’s neck or too low on the chest.
Ensure the chest clip is securely fastened. It should click firmly into place, indicating a secure connection; Regularly check the clip’s position and security before and during travel. Proper chest clip placement is crucial for optimal car seat performance.
Proper Harness Fit
Achieving a proper harness fit is paramount for your child’s safety in the Safety 1st Grow and Go 3-in-1 car seat. The harness should lie flat against your child’s body, without any twists or bunching. Ensure the straps are snug, but not overly tight, allowing a comfortable range of motion.
The “pinch test” is a simple way to verify a secure fit. If you cannot pinch any excess webbing at your child’s shoulder, the harness is properly tightened. Always use the correct harness slot height based on your child’s weight and height, as indicated in the manual.
Regularly check the harness fit as your child grows, adjusting the height and tightness as needed. A correctly fitted harness significantly enhances the car seat’s protective capabilities.

Safety Features and Warnings
This car seat incorporates side impact protection and energy-absorbing foam for enhanced safety. Always heed label warnings and register your product promptly.
Ensure the manufacture date aligns with the user guide’s effective date for optimal protection and compliance with safety standards.
Side Impact Protection
The Safety 1st Grow and Go 3-in-1 car seat is engineered with robust side impact protection features, designed to significantly reduce the risk of injury during a collision.
These features include specifically designed headrests and energy-absorbing foam strategically placed within the seat’s shell. This construction works to distribute crash forces away from your child, minimizing the impact to critical areas.
The side wings are reinforced to provide an additional layer of defense, creating a protective cocoon around your little one.
It’s vital to understand that while side impact protection enhances safety, it’s not a substitute for proper installation and correct harnessing procedures.
Always ensure the car seat is securely installed according to the instructions, and the harness is adjusted snugly to maximize the effectiveness of all safety features.
Regularly inspect the side impact components for any signs of damage, and replace the car seat if necessary.
Energy-Absorbing Foam
The Safety 1st Grow and Go 3-in-1 car seat incorporates strategically placed, high-density energy-absorbing foam throughout its construction. This crucial component plays a vital role in mitigating the forces experienced during a vehicle collision.
The foam is designed to compress upon impact, effectively absorbing and dispersing energy away from your child’s body, reducing the severity of potential injuries.
It’s integrated into the headrest, seat shell, and harness system, providing comprehensive protection in various impact scenarios.
This foam isn’t just for crash protection; it also contributes to overall comfort during everyday travel.
Regularly inspect the foam for any signs of deterioration or damage, as its effectiveness diminishes over time if compromised.
Maintaining the integrity of the energy-absorbing foam is essential for ensuring the continued safety of your child.
Label Warnings and Compliance
The Safety 1st Grow and Go 3-in-1 car seat features several prominent warning labels affixed directly to the unit. These labels are not merely suggestions; they contain critical safety information that must be understood and followed.
Do not under any circumstances remove or cover these labels, as doing so compromises your child’s safety and may render the car seat ineffective in a crash.
Labels detail weight and height limits for each mode, proper installation instructions, and crucial usage guidelines.
This car seat is designed to meet or exceed all applicable Federal Motor Vehicle Safety Standards (FMVSS).
Compliance is verified through rigorous testing and certification processes.
Always ensure the car seat is used in accordance with these standards and the specific instructions outlined in this manual to maximize protection.
Registration Information and Importance
Registering your Safety 1st Grow and Go 3-in-1 car seat is a vital step in ensuring your child’s safety and well-being. Registration allows Safety 1st to directly contact you in the event of a product recall or safety update.
This direct communication is crucial for promptly addressing any potential issues and ensuring you have the most current safety information.
Registration is a simple process, typically completed online through the Safety 1st website or via a mailed registration card.
Your registration demonstrates a commitment to your child’s safety and helps Safety 1st maintain accurate owner records.
It’s our priority to ensure the safety of your children, and registration is a key component of that commitment.
Manufacture Date and User Guide Effective Date
Understanding the manufacture date of your Safety 1st Grow and Go 3-in-1 car seat and the user guide’s effective date is critically important for safety. The manufacture date is located directly on the car seat itself, typically on a label affixed to the base or shell.
The user guide’s effective date indicates when the instructions were last updated.
It is essential that the car seat’s manufacture date is equal to or exceeds the user guide’s effective date. Using an outdated user guide with a newer car seat could result in incorrect installation or usage.
If the manufacture date is older than the guide’s effective date, download the latest version from the Safety 1st website to ensure you have the most current safety information;

Maintenance and Care
Regular cleaning and inspection are vital for maintaining your Safety 1st car seat’s functionality and hygiene; remove and replace the cover as needed.
Always inspect for any damage, ensuring all components are secure and in good working order before each use.
Cleaning Instructions
Maintaining a clean car seat is essential for hygiene and longevity. For routine cleaning, use a mild soap and warm water solution to gently wipe down the plastic components of the Safety 1st Grow and Go 3-in-1 car seat.
Avoid harsh chemicals, abrasives, or bleach, as these can damage the materials. The fabric cover is typically removable and machine washable – always check the care label for specific washing instructions before proceeding.
Air dry the cover completely before reattaching it to the car seat. For stubborn stains, a diluted upholstery cleaner may be used, but test it in an inconspicuous area first. Ensure all cleaning solutions are thoroughly rinsed to prevent residue buildup.
Never submerge the car seat itself in water. Regularly vacuuming the crevices can help remove crumbs and debris. Prioritize a clean environment for your child’s safety and comfort during travel.
Cover Removal and Replacement
The Safety 1st Grow and Go 3-in-1 car seat features a removable cover for easy cleaning. To remove the cover, carefully detach it from the car seat frame, following the instructions detailed in your user manual – typically involving releasing elastic straps or snaps.

Before removing, familiarize yourself with the attachment points to simplify reinstallation. When reinstalling the cover, ensure it is properly aligned with the frame and securely fastened at all connection points.
A snug fit is crucial for maintaining the car seat’s safety features. Double-check that all straps and snaps are firmly in place before use. Incorrectly installed covers can compromise the harness system.
Refer to the manual’s diagrams for visual guidance. If you encounter difficulty, consult the Safety 1st website or customer support for assistance. A properly fitted cover ensures both comfort and safety for your child.
Inspecting for Damage
Regularly inspecting your Safety 1st Grow and Go 3-in-1 car seat for damage is vital for continued safety. Before each use, carefully examine the shell, harness straps, buckles, and LATCH connectors for any signs of cracks, wear, or malfunction.
Pay close attention to areas that experience stress during impact, such as the shell and harness webbing. Check for fraying, cuts, or loose stitching. Do not use the car seat if any damage is detected.
Ensure all warning labels are present and legible; removing or covering them compromises safety information. If the car seat has been involved in a moderate to severe crash, it must be replaced, even if no visible damage is apparent.
Consult the user manual for specific damage criteria. If unsure, contact Safety 1st customer support for guidance. Prioritizing inspection ensures your child’s protection.

Frequently Asked Questions (FAQs)
Common concerns regarding installation, buckle slot usage, and troubleshooting are addressed here. Knowing when to replace the car seat is also crucial for safety.
Refer to this section for quick answers to frequently asked questions about your Safety 1st Grow and Go 3-in-1 car seat.
Troubleshooting Common Issues
Difficulty installing the car seat securely is a frequent concern. Double-check the LATCH connectors or seat belt path, ensuring a snug fit without excessive movement—more than one inch side-to-side or front-to-back.
If the harness feels loose, verify the harness height is correctly adjusted for your child’s size and that the harness straps are fully tightened. Remember to always re-thread the harness as your child grows.
Buckle release issues can occur; ensure the buckle is fully engaged before attempting to release it. Inspect the buckle for any debris or obstructions. If the buckle remains difficult to operate, discontinue use and contact Safety 1st customer support.
For angle adjustment problems, revisit the installation instructions and confirm the correct recline angle for your child’s age and weight. Utilize the built-in level indicator to achieve the proper angle.
Always consult the full manual for detailed guidance and safety information if issues persist.
Buckle Slot Usage (Rear vs. Forward Facing)
Understanding proper buckle slot selection is critical for optimal safety. When utilizing the Safety 1st Grow and Go 3-in-1 car seat in rear-facing mode, you must exclusively use the first or second buckle slot. This ensures the harness straps are positioned at the correct height for infant protection.
Transitioning to forward-facing mode allows for greater flexibility; any of the available buckle slots can be used. This accommodates the changing height and size of your growing toddler, providing a secure and comfortable fit.
Never use higher slots in rear-facing mode, as this compromises the harness’s ability to restrain your child effectively during a collision. Always double-check the slot selection with each mode change.
Refer to the illustrations in the user manual for visual guidance on correct buckle slot placement. Prioritizing correct usage is vital for your child’s wellbeing.

Replacing the Car Seat
Determining when to replace your Safety 1st Grow and Go 3-in-1 car seat is crucial for continued safety. A car seat should be replaced immediately after any collision, even if damage isn’t visible, as internal structural integrity may be compromised.
Beyond accidents, a car seat should be replaced when it reaches its expiration date, typically six to ten years from the date of manufacture. Check the label for specifics.
Additionally, discontinue use if the car seat has experienced significant damage, such as cracks or broken parts, or if you cannot locate the original instruction manual. Never use a car seat with missing components.
Prioritize your child’s safety by adhering to these guidelines and replacing the car seat when necessary. A new car seat ensures optimal protection.