diono radian gtx manual

The Diono Radian GTX is a premium 3-in-1 convertible car seat designed for children from 5 to 120 pounds. It features steel alloy frame construction, adjustable headrest with SafeStop energy-absorbing harness, side impact protection with energy-absorbing foam, multiple recline positions, compact folding for travel and storage, and machine-washable fabric. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Adjustments 6. Proper Use Positions 7. Harness System 8. Safety Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Steel alloy frame, adjustable headrest with SafeStop harness, side impact protection, multiple recline positions, compact folding design.

Feature	Description
Steel alloy frame	Provides superior strength and durability
Adjustable headrest	Grows with your child from 5 to 120 pounds
SafeStop harness	Energy-absorbing harness system for added safety
Side impact protection	Energy-absorbing foam for enhanced safety
Multiple recline positions	Adjustable for child comfort and proper installation
Compact folding	Folds for easy travel and storage
Machine-washable fabric	Easy to clean and maintain
LATCH system	Easy vehicle installation
Harness adjuster	Quick and easy harness tightening
Cup holders	Removable for easy cleaning

Installation

Unpack and inspect contents. Read all instructions before installation.

Select vehicle seating position: Use rear seat only, follow vehicle manual.
Install with LATCH system: Attach LATCH connectors to vehicle anchors.
Install with seat belt: Thread vehicle seat belt through designated path.
Check installation: Ensure seat does not move more than 1 inch side-to-side.
Adjust recline angle: Use recline adjuster for proper angle based on child's weight.

WARNING! Always install in vehicle rear seat. Ensure secure installation before each use.

First-Time Setup

Prepare car seat for first use with proper adjustments.

Adjust headrest height: Position for child's shoulder height.
Set harness height: Should be at or above child's shoulders for forward-facing.
Install harness: Thread through correct slots based on child's size.
Adjust recline: Set appropriate recline angle for child's weight.
Secure child: Place child in seat and fasten harness properly.

CAUTION! Harness should be snug; you should not be able to pinch excess webbing.

Specifications

Weight Range: 5 to 120 pounds
Height Range: Up to 57 inches
Modes: Rear-facing, forward-facing, booster
Frame Material: Steel alloy with energy-absorbing foam
Harness System: 5-point with SafeStop technology
Recline Positions: Multiple adjustable positions
Folding Dimensions: Compact travel size when folded
Fabric: Machine washable, premium materials
Certifications: FMVSS 213 compliant

Controls and Adjustments

Access all adjustments via clearly marked controls on the seat.

Headrest Adjustment: Lift headrest to raise, press button to lower. Harness Height: Adjust by rethreading harness through appropriate slots. Recline Adjustment: Use recline lever at base of seat. Harness Tightening: Pull harness adjuster strap. Harness Release: Press harness buckle release button.

Installation: LATCH connectors, seat belt path indicators. Safety: Side impact protection, energy-absorbing foam. Comfort: Multiple recline positions, padded inserts.

Proper Use Positions

Three modes: Rear-facing, forward-facing, booster.

Rear-facing: 5-50 pounds, harness at or below shoulders.
Forward-facing: 25-90 pounds, harness at or above shoulders.
Booster mode: 50-120 pounds, use vehicle lap-shoulder belt.

Tip: Always use harness for rear-facing and forward-facing modes.

Harness System

5-point harness with SafeStop energy-absorbing technology.

Shoulder straps: Adjust height as child grows.
Buckle: Secure between legs, listen for click.
Harness tightener: Pull strap to tighten harness.
SafeStop: Red clip for additional energy absorption.
Harness release: Press red button to release buckle.
Storage: Store harness when not in use.
Cleaning: Remove harness for washing if needed.
Inspection: Check regularly for wear or damage.

WARNING! Never use harness with twisted straps. Ensure harness is snug.

Safety Features

Side Impact Protection: Energy-absorbing foam in head and body areas. SafeStop Harness: Additional energy absorption. Steel Frame: Superior strength and durability. Multiple Installation Options: LATCH and seat belt compatibility.

Care & Cleaning

Remove fabric covers for cleaning. Machine wash cold, gentle cycle. Air dry only; no machine drying.

CAUTION! Do not bleach. Do not iron. Follow care label instructions exactly.

Regulatory Information

FMVSS 213 compliant: Meets all federal motor vehicle safety standards. Manufactured to highest quality standards. For support, visit www.diono.com or contact customer service. Copyright © Diono LLC. All rights reserved.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Seat moves excessively	Improper installation	Reinstall using LATCH or seat belt; ensure tight fit.
Harness difficult to tighten	Twisted straps/obstructions	Check for twists; ensure clear path for adjuster strap.
Child uncomfortable	Improper recline/harness	Adjust recline angle; check harness height and tightness.
LATCH connectors won't attach	Wrong anchors/obstructions	Verify correct vehicle anchors; clear any obstructions.
Harness buckle won't fasten	Debris in buckle	Clean buckle area; ensure no foreign objects.

Inspection: Check regularly for wear, damage, or expiration date.

Service: Contact Diono customer service for assistance.