Bubuka
This manual provides essential information for the proper installation, use, and maintenance of your Diono Radian 3QXT SafePlus 4-in-1 Convertible Car Seat. This car seat is designed to adapt as your child grows, offering safety and comfort from infancy through booster stage. Please read all instructions carefully before using the car seat to ensure maximum safety for your child.
Fitur konci
- 10 Years, One Car Seat: Designed to accommodate children from 4 lb to 120 lb, transitioning from newborn rear-facing to high-back booster.
- SafePlus Rear-Facing Engineering: Supports rear-facing use up to 50 lb, featuring a steel anti-rebound bar that reduces rebound rotation by up to 50%.
- Slim-Fit Design: Allows for three car seats to fit across the back seat in most vehicles, without compromising safety or comfort.
- Advanced Safety Construction: Features a reinforced automotive-grade high-strength steel frame and 8 layers of side impact protection.
- Headrest adjustable: One-hand easy-adjust 12-position SafePlus headrest for optimal fit and protection.
- Ramah Perjalanan: The car seat folds for travel or compact storage and is FAA approved for airline use.
Naon dina Box
- Radian 3QXT car seat
- Detachable Rear-facing base
- Safe+ newborn protection insert
- Safe+ 2-in-1 infant positioning liner
- Safe+ anti-rebound bar
- Safe+ anti-slip comfort newborn harness pads
- Safe+ anti-slip comfort harness pads
- Safe Stop energy absorbing harness
- Panyekel cangkir
- Rear-facing top tether
- Manual instruksi (dokumen ieu)
Setup sareng Instalasi
Proper installation is crucial for child safety. Always refer to your vehicle's owner's manual for specific car seat installation instructions and LATCH system weight limits. The Radian 3QXT can be installed using either the vehicle's seat belt or the LATCH (UAS) system.
Newborn Protection Inserts
For newborns and smaller infants, utilize the included Safe+ newborn protection insert, 2-in-1 infant positioning liner, and newborn harness pads to ensure a snug and secure fit from 4 lb.

Image: The four stages of newborn protection, including the newborn protection insert, travel high wedge, 2-in-1 infant positioning liner, and newborn harness pads.
Instalasi Nyanghareup Rear
When installing rear-facing, ensure the Safe+ anti-rebound bar is correctly attached. This bar helps to increase stability and reduce rebound rotation in the event of a collision.

Image: The car seat in a rear-facing position, highlighting the anti-rebound bar and its function in reducing rebound rotation.
Pangaluyuan abah
The 5-point harness system must be adjusted to fit snugly against your child's body. The harness straps should be at or below the child's shoulders for rear-facing and at or above the child's shoulders for forward-facing. The chest clip should be positioned at armpit level.
Adjustment Headrest
The SafePlus easy-adjust 12-position headrest can be raised or lowered with one hand to properly position the head support for your child's height.
Modeu Operasi
The Diono Radian 3QXT offers four distinct modes to accommodate your child's growth and development.

Image: Visual representation of the four operating modes: newborn rear-facing (from 4 lb), rear-facing for longer (up to 50 lb), forward-facing with harness (22-65 lb), and high-back booster (40-120 lb).
- Newborn Rear-Facing (4 lb - 50 lb): Use with all newborn inserts and the anti-rebound bar. Ensure the car seat is reclined at the correct angle for infants.
- Rear-Facing for Longer (4 lb - 50 lb): Continue using rear-facing as long as your child meets the height and weight requirements. The anti-rebound bar remains in use.
- Forward-Facing with 5-Point Harness (22 lb - 65 lb): Once your child meets the minimum forward-facing requirements, convert the seat to forward-facing. The harness straps should be at or above the child's shoulders.
- High-Back Booster (40 lb - 120 lb): For older children, the 5-point harness can be removed, and the car seat used as a high-back booster with the vehicle's lap and shoulder belt. Ensure the vehicle belt is properly positioned across the child's shoulder and hips.
Fitur Kasalametan
The Radian 3QXT incorporates several advanced safety features as part of its SafePlus Engineering.
Steel Core Frame
The car seat is constructed with a mechanically engineered, reinforced automotive-grade high-strength steel frame, providing a robust protective shell for your child.

Image: A diagram illustrating the internal steel core frame structure of the car seat.
Protection Dampak samping
The Radian 3QXT features 8 layers of side impact protection, including a Safe+ side impact management pod, designed to absorb crash forces and protect your child in a side-impact collision.

Gambar: Hiji ngabeledug view diagram detailing the 8 layers of side impact protection within the car seat.

Image: The car seat with a close-up of the Safe+ side impact management pod.
SuperLATCH Connectors
Equipped with SuperLATCH connectors (UAS Compatible) for secure and easy installation.
Pangropéa
Parentah beberesih
- Panutup: Machine wash cold and line dry. Do not bleach or iron.
- Shell and Components: Spot clean with a mild soap and water solution. Do not immerse the car seat shell in water.
- Tali Harness: Ngusap bersih nganggo iklanamp lawon. Ulah dikumbah ku mesin atanapi ngalelepkeun tali harness, sabab ieu tiasa ngaleuleuskeun webbing.
Panyimpenan
When not in use, store the car seat in a cool, dry place away from direct sunlight. If storing for an extended period, ensure all components are clean and dry.
spésifikasi
| Fitur | Spésifikasi |
|---|---|
| Dimensi produk | 16 x 17 x 28.5 inci |
| Item Beurat | 32 pon |
| Rekomendasi Beurat Minimum | 4 pon |
| Rekomendasi beurat maksimum | 120 pon |
| Rekomendasi Jangkung Minimum | 18.1 inci |
| Rekomendasi jangkungna maksimum | 57 inci |
| Jenis Bahan | Alloy Steel, Plastic, Polypropylene, Polystyrene |
| Komposisi Bahan | 100% Poliéster |
| Jumlah Posisi Ngagoler | 12 |
| Jenis Abah | 5-titik |
| Tipe Pamasangan | NGASAR |
| FAA disatujuan | Sumuhun |

Image: A diagram illustrating the various dimensions of the Radian 3QXT car seat, including height, width, and depth.
Pamérésan masalah
This section addresses common issues you might encounter with your Diono Radian 3QXT car seat. For more detailed troubleshooting or issues not listed here, please contact customer support.
Difficulty Tightening Harness
- Ensure the harness straps are not twisted.
- Check that the chest clip is unbuckled and pushed down towards the buckle before tightening.
- Verify that no fabric or clothing is obstructing the harness path.
Car Seat Feels Loose After Installation
- Re-read the installation instructions carefully, paying attention to the LATCH or seat belt routing.
- Apply firm pressure to the car seat while tightening the LATCH straps or vehicle seat belt.
- Pastikeun korsi mobil teu obah leuwih ti hiji inci ti sisi ka sisi atawa ti hareup ka tukang dina jalur sabuk.
Child's Head Slumps in Rear-Facing
- Ensure the car seat is installed at the correct recline angle for your child's age and weight.
- Verify that all newborn inserts are correctly positioned according to the manual.
- The Safe+ newborn travel high wedge is designed to help achieve the proper recline for newborns.
Garansi sareng Rojongan
For specific warranty information, please refer to the warranty card included with your product or visit the official Diono websitus. Simpen bukti pameseran anjeun pikeun klaim garansi.
For customer support, product registration, or to order replacement parts, please visit the Diono website or contact their customer service department directly. Always provide your car seat's model number (Radian 3QXT) and manufacturing date when seeking support.




